WO2006059727A1 - タンパク質アレイ用検出および解析システム - Google Patents
タンパク質アレイ用検出および解析システム Download PDFInfo
- Publication number
- WO2006059727A1 WO2006059727A1 PCT/JP2005/022213 JP2005022213W WO2006059727A1 WO 2006059727 A1 WO2006059727 A1 WO 2006059727A1 JP 2005022213 W JP2005022213 W JP 2005022213W WO 2006059727 A1 WO2006059727 A1 WO 2006059727A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- protein
- immobilized
- proteins
- light
- array
- Prior art date
Links
- 238000003498 protein array Methods 0.000 title claims abstract description 162
- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 238000004458 analytical method Methods 0.000 title claims description 12
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 483
- 102000004169 proteins and genes Human genes 0.000 claims abstract description 479
- 239000000758 substrate Substances 0.000 claims abstract description 165
- 108010058683 Immobilized Proteins Proteins 0.000 claims abstract description 122
- 150000001875 compounds Chemical class 0.000 claims abstract description 122
- 238000000034 method Methods 0.000 claims abstract description 46
- 230000003993 interaction Effects 0.000 claims abstract description 22
- 230000031700 light absorption Effects 0.000 claims abstract description 20
- 230000001678 irradiating effect Effects 0.000 claims abstract description 17
- 239000011521 glass Substances 0.000 claims description 64
- 238000002835 absorbance Methods 0.000 claims description 35
- 238000006243 chemical reaction Methods 0.000 claims description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 125000003275 alpha amino acid group Chemical group 0.000 claims description 17
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 16
- 210000004027 cell Anatomy 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 15
- 210000004899 c-terminal region Anatomy 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 8
- 125000002924 primary amino group Chemical class [H]N([H])* 0.000 claims description 5
- 108010055615 Zein Proteins 0.000 claims description 3
- 230000003100 immobilizing effect Effects 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 235000018102 proteins Nutrition 0.000 description 348
- 230000003287 optical effect Effects 0.000 description 26
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 20
- 102000004144 Green Fluorescent Proteins Human genes 0.000 description 20
- 239000005090 green fluorescent protein Substances 0.000 description 20
- 239000000243 solution Substances 0.000 description 20
- 238000010521 absorption reaction Methods 0.000 description 18
- 239000012460 protein solution Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 11
- 229920002401 polyacrylamide Polymers 0.000 description 11
- 239000003446 ligand Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 230000008859 change Effects 0.000 description 9
- 239000003153 chemical reaction reagent Substances 0.000 description 9
- 239000000523 sample Substances 0.000 description 9
- 238000001228 spectrum Methods 0.000 description 9
- 238000003384 imaging method Methods 0.000 description 8
- 150000003141 primary amines Chemical class 0.000 description 8
- 238000002198 surface plasmon resonance spectroscopy Methods 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 7
- 125000003277 amino group Chemical group 0.000 description 7
- 108090000765 processed proteins & peptides Proteins 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 238000007333 cyanation reaction Methods 0.000 description 6
- 239000007850 fluorescent dye Substances 0.000 description 6
- 238000002372 labelling Methods 0.000 description 6
- 239000008363 phosphate buffer Substances 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000000746 purification Methods 0.000 description 6
- 108091006146 Channels Proteins 0.000 description 5
- 102100024746 Dihydrofolate reductase Human genes 0.000 description 5
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 5
- 108010022394 Threonine synthase Proteins 0.000 description 5
- 238000000862 absorption spectrum Methods 0.000 description 5
- 235000001014 amino acid Nutrition 0.000 description 5
- 229940024606 amino acid Drugs 0.000 description 5
- 150000001413 amino acids Chemical class 0.000 description 5
- 102000004419 dihydrofolate reductase Human genes 0.000 description 5
- 108020001096 dihydrofolate reductase Proteins 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 description 4
- 108020004414 DNA Proteins 0.000 description 4
- 241000588724 Escherichia coli Species 0.000 description 4
- 239000006087 Silane Coupling Agent Substances 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000000427 antigen Substances 0.000 description 4
- 108091007433 antigens Proteins 0.000 description 4
- 102000036639 antigens Human genes 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 4
- 239000000872 buffer Substances 0.000 description 4
- 238000004587 chromatography analysis Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920000729 poly(L-lysine) polymer Polymers 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- FWMNVWWHGCHHJJ-SKKKGAJSSA-N 4-amino-1-[(2r)-6-amino-2-[[(2r)-2-[[(2r)-2-[[(2r)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]piperidine-4-carboxylic acid Chemical compound C([C@H](C(=O)N[C@H](CC(C)C)C(=O)N[C@H](CCCCN)C(=O)N1CCC(N)(CC1)C(O)=O)NC(=O)[C@H](N)CC=1C=CC=CC=1)C1=CC=CC=C1 FWMNVWWHGCHHJJ-SKKKGAJSSA-N 0.000 description 3
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 108091028043 Nucleic acid sequence Proteins 0.000 description 3
- 235000003704 aspartic acid Nutrition 0.000 description 3
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 102000034287 fluorescent proteins Human genes 0.000 description 3
- 108091006047 fluorescent proteins Proteins 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 102000004196 processed proteins & peptides Human genes 0.000 description 3
- 230000006916 protein interaction Effects 0.000 description 3
- 238000011002 quantification Methods 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- 125000005372 silanol group Chemical group 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 125000003396 thiol group Chemical group [H]S* 0.000 description 3
- 239000013598 vector Substances 0.000 description 3
- -1 1-cyan-4-dimethylaminopyridinium tetrafluoroborate Chemical compound 0.000 description 2
- WEEMDRWIKYCTQM-UHFFFAOYSA-N 2,6-dimethoxybenzenecarbothioamide Chemical compound COC1=CC=CC(OC)=C1C(N)=S WEEMDRWIKYCTQM-UHFFFAOYSA-N 0.000 description 2
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 2
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 2
- 101000694017 Homo sapiens Sodium channel protein type 5 subunit alpha Proteins 0.000 description 2
- 229920002684 Sepharose Polymers 0.000 description 2
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 125000000539 amino acid group Chemical group 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 235000011130 ammonium sulphate Nutrition 0.000 description 2
- KLOHDWPABZXLGI-YWUHCJSESA-M ampicillin sodium Chemical compound [Na+].C1([C@@H](N)C(=O)N[C@H]2[C@H]3SC([C@@H](N3C2=O)C([O-])=O)(C)C)=CC=CC=C1 KLOHDWPABZXLGI-YWUHCJSESA-M 0.000 description 2
- 229960001931 ampicillin sodium Drugs 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 229940041514 candida albicans extract Drugs 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000001444 catalytic combustion detection Methods 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006854 communication Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000006059 cover glass Substances 0.000 description 2
- 125000000151 cysteine group Chemical group N[C@@H](CS)C(=O)* 0.000 description 2
- 230000036425 denaturation Effects 0.000 description 2
- 238000004925 denaturation Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000005194 fractionation Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 235000013922 glutamic acid Nutrition 0.000 description 2
- 239000004220 glutamic acid Substances 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 108091005573 modified proteins Proteins 0.000 description 2
- 102000035118 modified proteins Human genes 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 239000008055 phosphate buffer solution Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000013612 plasmid Substances 0.000 description 2
- 238000004445 quantitative analysis Methods 0.000 description 2
- 108091008146 restriction endonucleases Proteins 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 229910000077 silane Inorganic materials 0.000 description 2
- 150000003384 small molecules Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 229960002385 streptomycin sulfate Drugs 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000012137 tryptone Substances 0.000 description 2
- 238000002211 ultraviolet spectrum Methods 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 239000012138 yeast extract Substances 0.000 description 2
- QMOQBVOBWVNSNO-UHFFFAOYSA-N 2-[[2-[[2-[(2-azaniumylacetyl)amino]acetyl]amino]acetyl]amino]acetate Chemical compound NCC(=O)NCC(=O)NCC(=O)NCC(O)=O QMOQBVOBWVNSNO-UHFFFAOYSA-N 0.000 description 1
- ADSOSINJPNKUJK-UHFFFAOYSA-N 2-butylpyridine Chemical compound CCCCC1=CC=CC=N1 ADSOSINJPNKUJK-UHFFFAOYSA-N 0.000 description 1
- NQUNIMFHIWQQGJ-UHFFFAOYSA-N 2-nitro-5-thiocyanatobenzoic acid Chemical compound OC(=O)C1=CC(SC#N)=CC=C1[N+]([O-])=O NQUNIMFHIWQQGJ-UHFFFAOYSA-N 0.000 description 1
- OVSKGTONMLKNPZ-UHFFFAOYSA-N 3-(1-methylindol-3-yl)-4-(1-methyl-6-nitroindol-3-yl)pyrrole-2,5-dione Chemical compound C12=CC=CC=C2N(C)C=C1C1=C(C=2C3=CC=C(C=C3N(C)C=2)[N+]([O-])=O)C(=O)NC1=O OVSKGTONMLKNPZ-UHFFFAOYSA-N 0.000 description 1
- RNLHGQLZWXBQNY-UHFFFAOYSA-N 3-(aminomethyl)-3,5,5-trimethylcyclohexan-1-amine Chemical compound CC1(C)CC(N)CC(C)(CN)C1 RNLHGQLZWXBQNY-UHFFFAOYSA-N 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 239000004475 Arginine Substances 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- GMAWKZBYUFFDFM-DSDZBIDZSA-N C([C@@H](C(=O)O)N)SSC(C#N)[C@@H](C(=O)O)N Chemical group C([C@@H](C(=O)O)N)SSC(C#N)[C@@H](C(=O)O)N GMAWKZBYUFFDFM-DSDZBIDZSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 238000000018 DNA microarray Methods 0.000 description 1
- 229920002307 Dextran Polymers 0.000 description 1
- 240000001718 Elaeodendron orientale Species 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- FBOZXECLQNJBKD-ZDUSSCGKSA-N L-methotrexate Chemical compound C=1N=C2N=C(N)N=C(N)C2=NC=1CN(C)C1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 FBOZXECLQNJBKD-ZDUSSCGKSA-N 0.000 description 1
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 239000004472 Lysine Substances 0.000 description 1
- 101150044367 MKC1 gene Proteins 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 1
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 241001136629 Pixus Species 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 229920002845 Poly(methacrylic acid) Polymers 0.000 description 1
- 229920000805 Polyaspartic acid Polymers 0.000 description 1
- 108010039918 Polylysine Proteins 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 229910008051 Si-OH Inorganic materials 0.000 description 1
- 229910006358 Si—OH Inorganic materials 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 102100040396 Transcobalamin-1 Human genes 0.000 description 1
- 101710124861 Transcobalamin-1 Proteins 0.000 description 1
- 238000011481 absorbance measurement Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 238000010976 amide bond formation reaction Methods 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 229940009098 aspartate Drugs 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009881 electrostatic interaction Effects 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 239000013604 expression vector Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229930195712 glutamate Natural products 0.000 description 1
- 108010001064 glycyl-glycyl-glycyl-glycine Proteins 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229920001477 hydrophilic polymer Polymers 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- OOYGSFOGFJDDHP-KMCOLRRFSA-N kanamycin A sulfate Chemical group OS(O)(=O)=O.O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CN)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O[C@@H]2[C@@H]([C@@H](N)[C@H](O)[C@@H](CO)O2)O)[C@H](N)C[C@@H]1N OOYGSFOGFJDDHP-KMCOLRRFSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229960000485 methotrexate Drugs 0.000 description 1
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000172 poly(styrenesulfonic acid) Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000656 polylysine Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 229940005642 polystyrene sulfonic acid Drugs 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 230000004952 protein activity Effects 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/5308—Immunoassay; Biospecific binding assay; Materials therefor for analytes not provided for elsewhere, e.g. nucleic acids, uric acid, worms, mites
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/251—Colorimeters; Construction thereof
- G01N21/253—Colorimeters; Construction thereof for batch operation, i.e. multisample apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
- G01N21/6452—Individual samples arranged in a regular 2D-array, e.g. multiwell plates
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54366—Apparatus specially adapted for solid-phase testing
- G01N33/54386—Analytical elements
Definitions
- the present invention relates to the interaction of a protein on a protein array in which proteins are aligned and fixed at high density, and the protein with other proteins and compounds other than Z or proteins, by the ultraviolet, visible or infrared of the protein.
- the present invention relates to a system that detects and analyzes the absorption at Kojo using a spectrophotometer.
- Protein arrays offer new possibilities as a means of exploring the functions of unknown proteins encoded by genes and analyzing complex interactions of many proteins at once Technology.
- Protein arrays consist of proteins and peptides arranged on a substrate, and various protein arrays have been reported (see Patent Documents 1 and 2).
- Patent Documents 1 and 2 In the protein array technology, a protein is immobilized on an appropriate substrate, and other proteins are allowed to interact with the immobilized protein, and spots on the interacted array are detected.
- Non-Patent Documents 1 and 2 a detection method using a surface plasmon resonance (SPR) imaging method.
- This method irradiates a protein array with a polarized light beam, obtains the reflected light as an SPR image, and analyzes the reflected light intensity of the SPR image to obtain a fixed protein on the array.
- It is a method of detection.
- the method has the advantage that it does not require a label and can be detected in real time.
- the method cannot be used for analyzing the interaction between a protein and a low-molecular substance, and the method has a problem that the dynamic range is narrow.
- the equipment used for SPR imaging is extremely expensive, and it is not easy to construct a detection system.
- Patent Document 1 JP-T 2002-520618
- Patent Document 2 Japanese Translation of Special Publication 2002-502038
- Patent Document 3 JP 2004-45390 A
- Non-Patent Document 1 Nelson, B. P. et al, Anal Chem. 71 (18) 3928-3934 (1999)
- Non-patent document 2 Brockman, JM et al., Annu. Rev. Phys. Chem, 51, 41-63 (2000))
- Non-patent document 3 Y. Okahata, et al. J. Am, Chem. Soc, 114 , 8299-8300 (1992) Disclosure of the Invention
- the inventor of the present invention uses a protein array and a detection method using a protein array 'analysis system that solves the above-mentioned problems, and controls the orientation of proteins on an array substrate to fix the protein at a high density. Then, ultraviolet light, visible light, or infrared light is irradiated onto the immobilized protein, and the protein on the substrate is detected by measuring the light that is not absorbed by the protein. It is an object to provide a method and apparatus for analyzing the interaction with other proteins and compounds other than Z or a protein, and a protein array suitable for the system.
- an ultraviolet light transmissive substrate is used as the array substrate, and the substrate on which the protein is immobilized is irradiated with ultraviolet light to measure the powerful ultraviolet light that is not absorbed by the protein and detect the protein on the substrate.
- a method and apparatus for analyzing the interaction between a protein on the substrate and another protein or a compound other than protein, in particular, a low molecular weight compound capable of interacting with protein is to provide a protein array suitable for the system.
- the present invention provides a protein, protein, and Z or other protein using a protein array using an inexpensive and available device that does not require protein labeling with a fluorescent dye or the like.
- a detection / analysis system for the interaction with other substances we conducted intensive studies.
- proteins are immobilized from a femtomole (p moles) order to a picomoles (p moles) order on an array substrate that supports detection of minute amounts, and minute amounts of protein are detected.
- p moles femtomole
- p moles picomoles
- minute amounts of protein are detected.
- the present inventor has previously completed a method of fixing proteins at a high density by controlling the orientation of proteins on an array substrate (Japanese Patent No. 2517861, Japanese Patent No. 2990271, Japanese Patent No. 3047029, According to this method, a protein can be immobilized on a substrate at an order of ole / cm 2 that is 1 to 2 orders higher than that of the prior art.
- the present inventor is widely used without labeling with fluorescent dyes or using expensive equipment, and can be obtained at a relatively low cost. It has been found that using a photometer, the proteins on the array can be measured by measuring the optical activity of the protein. That is, since proteins are immobilized on a substrate in high density and in large quantities, irradiation is performed by irradiating the immobilized protein with light having a wavelength that is absorbed by the protein or a substance that interacts with the immobilized protein. The absorbed light is absorbed by the protein on the array or the substance that interacts with the protein.
- the absorption by the immobilized protein or the substance that interacts with the protein can be measured, and the protein on the array substrate or the substance that interacts with the protein. It was found that can be directly measured using optical activity.
- proteins absorb ultraviolet light, but by using an ultraviolet light transmissive substrate such as quartz glass, strong ultraviolet light that is not absorbed by the protein is transmitted as light passing through the array substrate on which the protein is immobilized. It was possible to measure.
- a CCD or the like The power that is desired to use a two-dimensional photodetector A two-dimensional photodetector that can detect ultraviolet light is extremely expensive, and cannot easily be built into a system. Accordingly, the present inventors have obtained a CCD that can be obtained at low cost by converting the ultraviolet light transmitted through the substrate on which the protein is immobilized to visible light using an ultraviolet-visible light conversion device such as fluorescent glass. As a result, the present invention was completed.
- Proteins on protein arrays and proteins that interact with Z or immobilized proteins including protein arrays and spectrophotometers where proteins are aligned and immobilized at high density on a light transmissive substrate
- [0012] Interacts with proteins on protein arrays and Z or immobilized proteins, including protein arrays with high-density alignment and fixation on light-transmitting substrates, light irradiation means, and light detection means
- This is a system for detecting and analyzing other compounds other than proteins, and irradiating the protein array with light by light irradiation means and measuring the light transmitted through the protein array with the light detection means and A system that measures the absorption of light by compounds other than proteins that interact with Z or fixed proteins, and detects and analyzes proteins on protein arrays and other compounds other than Z or proteins.
- the protein is immobilized at a density of 0.01 g / mm 2 or more per spot of the protein array! /, [1] to [3] !, any of the proteins on the protein array and Detect and analyze other compounds other than proteins that interact with Z or immobilized proteins Stem.
- the protein is fixed at a density such that the absorbance at one spot of the protein array is 0.001 or more, [1] to [3] !, any protein on the protein array and Z or A system that detects and analyzes compounds other than proteins that interact with immobilized proteins.
- R and R each represent an arbitrary amino acid sequence, and Y represents a substrate.
- a system that detects and analyzes proteins on any protein array and other compounds other than proteins that interact with z or immobilized proteins.
- [0017] [7] The protein was aligned and immobilized by covalently bonding the C-terminal carboxy group of the amino acid sequence of the protein and the carrier containing the primary amine cast on the surface of the light-transmitting glass. [1] A system that detects and analyzes proteins on the protein array of any one of [6] and other compounds other than proteins that interact with Z or immobilized proteins.
- the photodetection means is a CCD or a photodiode array, other than a protein that interacts with the protein on the protein array according to any one of [1] to [7] and Z or immobilized protein.
- the light irradiated to the protein array is ultraviolet light
- the light-transmitting substrate is an ultraviolet light-transmitting substrate [1] to [8]
- [0020] [10] Detects compounds other than proteins that interact with proteins and Z or immobilized proteins on the protein array of [9], where the UV light transparent substrate is a quartz glass substrate ⁇ System to analyze.
- the UV-visible light conversion device is irradiated with ultraviolet light that has passed through the protein array, and light converted from ultraviolet light to visible light is detected. [9 on the protein array in [10] System to detect and analyze other proteins other than proteins that interact with proteins and Z or immobilized proteins.
- the ultraviolet-visible light conversion device is fluorescent glass. A system that detects and analyzes proteins and other compounds other than proteins that interact with z or immobilized proteins.
- the protein immobilized on the protein array is brought into contact with the specimen, and the light of the compound on the protein array before and after contact and other compounds other than the protein interacting with Z or immobilized protein By measuring absorption, it detects proteins in the sample that interact with the immobilized protein and other compounds other than those that interact with Z or immobilized protein.
- a system that detects and analyzes proteins on any protein array and other compounds other than proteins that interact with Z or immobilized proteins.
- the protein immobilized on the protein array is brought into contact with another protein and other compounds other than the protein that interacts with Z or the immobilized protein, and the protein on the protein array Analyze the interaction of immobilized protein with protein or other compounds other than proteins by measuring the absorption of light by compounds other than proteins that interact with Z or immobilized proteins.
- the light-transmitting substrate is a flow channel cell or a microphone chip in which a flow path is formed, a protein is immobilized in the flow path, and the specimen is passed through the flow path.
- [0026] A protein array in which proteins are arranged and fixed at high density on a light-transmitting substrate is irradiated with light using a spectrophotometer, and the light transmitted through the protein array is measured. Measure light absorption by proteins and other compounds other than proteins that interact with Z or immobilized proteins, and identify proteins on proteins arrays and other compounds that interact with Z or immobilized proteins How to detect and analyze. [0027] [17] Proteins are immobilized at a density of 0.01 / zg / mm 2 or more per spot in the protein array [16] Proteins on the protein array and Z or immobilized proteins A method to detect and analyze other compounds other than interacting proteins.
- the protein is immobilized at a density such that the absorbance at one spot of the protein array is 0.001 or more.
- [0030] [20] The protein was aligned and immobilized by covalently bonding the C-terminal carboxy group of the amino acid sequence of the protein to the carrier containing the primary amine cast on the surface of the light-transmitting glass. [16] A method for detecting and analyzing the protein on the protein array according to any one of [19] and other compounds other than the protein that interacts with Z or an immobilized protein.
- the light detection means is a CCD or a photodiode array, other than the protein on the protein array of any one of [16] to [20] and a protein that interacts with Z or immobilized protein. To detect and analyze any compound.
- the light irradiated to the protein array is ultraviolet light
- the light-transmitting substrate is an ultraviolet light-transmitting substrate. Is a method to detect and analyze other compounds than proteins that interact with immobilized proteins.
- the UV light-transmitting substrate is a quartz glass substrate. Detects proteins on the protein array of [22] and other compounds other than proteins that interact with Z or immobilized proteins. 'How to parse.
- the UV-visible light conversion device is irradiated with ultraviolet light that has passed through the protein array, and the light converted from ultraviolet light to visible light is detected. [22] or [23] on the protein array A method to detect and analyze proteins and other compounds that interact with Z or immobilized proteins. [0035] [25] The UV-visible light conversion device is fluorescent glass. Detects proteins on the protein array of [24] and other compounds other than proteins that interact with Z or immobilized proteins. How to analyze.
- the protein immobilized on the protein array is brought into contact with another compound or other compound other than the protein that interacts with the immobilized protein, and the protein on the protein array is contacted before and after the contact.
- Analyze the interaction of proteins with proteins or other compounds other than proteins by measuring the absorption of light by proteins and / or other compounds that interact with immobilized proteins.
- the light-transmitting substrate is a flow channel cell or a microphone chip in which a flow path is formed, a protein is immobilized in the flow path, and the sample passes through the flow path.
- [0041] [31] The protein array according to [30], wherein the ultraviolet light-transmitting glass is quartz glass. [0042] [32] The protein array according to any one of [29] to [31], wherein the protein is immobilized at a density of 0.01 / zg / mm 2 or more per spot of the protein array.
- the protein array used in the present invention is fixed at a high density by controlling the orientation of proteins on a light-transmitting substrate, so that the light transmitted through the substrate is measured by irradiating light.
- the absorption of light by the protein can be determined, and the amount of protein on the protein array can also be measured by the light absorption. Therefore, as in the conventional method, the amount of protein on the substrate that does not need to be used for detection can be directly measured by measuring the optical activity of the protein. .
- the present invention measures ultraviolet light, visible light, and infrared light, the amount of protein on the protein array can be easily measured using a widely used spectrophotometer.
- the protein quantification means it is widely used as a protein quantification means, and it is possible to accurately measure proteins on a protein array using ultraviolet light absorption. Furthermore, by using a two-dimensional light detection means such as a CCD as the light detection means, the protein at each spot on the protein array can be rapidly measured at a time. In addition, by using an ultraviolet-visible conversion device such as a substrate that can transmit ultraviolet light and fluorescent glass that can convert ultraviolet light into visible light, CCDs for digital cameras that can be easily obtained at low cost can be used. The cost for system construction can be reduced.
- the interaction such as binding between a protein and another protein or a non-protein compound can be analyzed by measuring a change in absorbance of the protein on the array or an absorbance of a compound other than the protein. .
- FIG. 1 is a diagram showing a system of the present invention.
- FIG. 2 is a diagram showing an outline of a flow system. Mounted at the position of the protein-immobilized and light-transmitting substrate 3 in FIG.
- FIG. 3 An image of an array substrate with green fluorescent protein immobilized under natural light.
- FIG. 4 is a diagram showing an optical system diagram (optical path) of an observation system used in Examples.
- FIG. 5 is a diagram showing an optical system diagram when a spectrophotometer AVIV ATF104 is used.
- FIG. 6 is a view showing a combination of a protein-immobilized substrate and fluorescent glass.
- FIG. 7 A diagram showing an image of fluorescence emitted from fluorescent glass by combining DHFR-fixed slide glass and fluorescent glass and irradiating ultraviolet light with a wavelength of 280nm.
- the right figure in Fig. 7 shows the amount of protein used in each spot.
- Figure 8 A combination of a slide glass and a fluorescent glass with DHFR fixed at 0.5 to 4 g / spot, and irradiating UV light with a wavelength of 280 nm, and imaging the fluorescence emitted from the fluorescent glass with high-resolution CDD It is.
- the right figure in Fig. 8 shows the amount of protein used for each spot.
- FIG. 9 shows the absorbance, that is, the absorption spectrum in each spot, measured by irradiating ultraviolet rays every 5 nm in the wavelength range from 280 nm to 310 nm.
- X, ⁇ , ⁇ , and ⁇ ⁇ indicate the average values (4 spots each) at 0.5, 1, 2, and 4 g / spot, respectively.
- Each point has an error bar.
- 0.7 / z M (Spectrum indicated by curve 1 in the figure)
- 1.3 ⁇ Spectrum indicated by curve 2 in the figure
- 2.5 ⁇ Spectrum indicated by curve 3 in the figure
- the spectrum in the solution shown by 4.4-mm AS-DHFR is shown.
- Video capture board 7 Data processing means
- the protein array detection and analysis system of the present invention uses a substrate on which protein is immobilized at a high density, irradiates the protein on the substrate with light (ultraviolet light, visible light, or infrared light), and the substrate. Detect and analyze the protein by directly measuring the absorption of the protein above.
- a substrate capable of transmitting ultraviolet light is used as the substrate, and the protein is detected and analyzed using absorption of ultraviolet light of the protein.
- detection analysis refers to protein qualification, quantification, measurement of protein interaction with protein or non-protein compound, measurement of protein-ligand interaction by change in absorbance of immobilized protein, Monitoring structural changes of the protein itself, qualitative and quantitative analysis of compounds other than proteins that interact with immobilized proteins.
- the protein includes peptides and polypeptides.
- the “protein on the array” when detecting proteins on the array refers to other proteins that are bound by the interaction with the immobilized protein that is not just the immobilized protein that is bound to the array via the NH group. Also includes protein.
- detection of proteins on the array analysis refers to the fixed protein on the array and other proteins that interacted with the fixed protein. When protein is immobilized on an array that is detected and analyzed, it interacts with compounds other than proteins, such as low-molecular compounds, and the absorbance changes due to changes in protein structure due to the interaction. It also includes detecting and analyzing structural changes of the protein by measuring changes in absorbance.
- detection of other compounds that interact with proteins on the array 'analysis refers to the detection and analysis of other compounds other than proteins that interact with proteins immobilized on the array. This means that a compound having absorption of light of a wavelength is measured using light of that wavelength.
- Fig. 1 shows the configuration of the protein array detection and analysis system of the present invention.
- the system includes a system control unit including a light irradiation means (optical system) 2, a light detection means 5 such as a CCD digital camera, and a measurement unit including a video data processing means 6 such as a video capture board if necessary.
- the data processing unit 7 is composed of a substrate 3 capable of transmitting light on which proteins are immobilized at high density.
- the measurement unit may include an ultraviolet-visible light conversion device 4.
- a lens or a slit 8 may be included on the optical path from the optical system 2 to the substrate 3.
- the data processing means can control the operation of the system control unit by means of communication means 9 such as RS232C.
- the part including light irradiating means and light detecting means for generating light, diffusing, irradiating the protein array, and measuring transmitted light is the spectrophotometer 1, and the present invention is It is also a system that uses a spectrophotometer to detect proteins on a substrate that can transmit light with a high density of immobilized proteins.
- the spectrophotometer is an apparatus for measuring infrared, visible, and ultraviolet spectrums. In the present invention, preferably, the ultraviolet spectrum is measured. Therefore, in the present invention, a UV-visible spectrophotometer which is widely used can be used.
- the substrate since the protein immobilized on the substrate is irradiated with light to directly measure the absorbance of the immobilized protein, the substrate needs to be light transmissive.
- Light transmissivity refers to the property of transmitting ultraviolet light, visible light or infrared light, that is, the property of not absorbing such light.
- transparent glass such as stone glass or pyrex glass
- transparent plastic or the like which is desirably used as a transparent substrate, may be used.
- the substrate when measuring using ultraviolet light, the substrate needs to transmit ultraviolet light.
- Ultraviolet light measurement cell used in spectrophotometers such as ultraviolet light transmission glass as a substrate that transmits ultraviolet light
- a glass substrate made of the same material as that of the uvette may be used.
- a synthetic quartz glass for example, manufactured by Shin-Etsu Chemical Co., Ltd.
- a slide glass made of quartz glass such as synthetic quartz glass or fused silica glass is preferable.
- a flow system for measuring the interaction between a protein immobilized on a substrate and another protein or another compound other than a protein in a liquid can be constructed. An overview is shown in Figure 2.
- the glass substrate (array substrate 10) on which protein 11 is immobilized is sandwiched between the glass substrate (cover 12) to be covered with an appropriate spacer, and the inlet of the solution is introduced into one spacer. (Inlet 13), create a flow system easily by creating a solution outlet (exhaust port 14) in the spacer on the opposite side and allowing the solution to flow from the outside. Can do.
- the flow system is mounted on the protein-immobilized / light-transmitting substrate 3 of the apparatus shown in FIG.
- the flow system can also be constructed by immobilizing proteins on the glass in the flow channel using a microchip with a micron-order high-precision flow channel formed on a flow channel cell or glass substrate. it can.
- a flow path substrate and a cover plate in which a flow path is formed are prepared, proteins are immobilized on a portion of the cover plate that contacts the flow path, and then the flow path substrate and the cover plate are joined together to form a microchip.
- a chip may be manufactured.
- Commercially available products such as Epi gem's Fluence microchannel tool kit can also be used.
- the absorbance of the protein on the substrate is directly measured without labeling the protein with a probe such as a fluorescent dye or a reporter, it is necessary to immobilize the protein on the substrate with high density.
- “Immobilizing at high density” means immobilizing so that the number of protein molecules immobilized per unit area of the substrate increases.
- the amount of immobilization is not limited, but it is 0.5 nmole or more, preferably 1 nmole or more, more preferably 5 nmole or more, per one type of protein immobilized on the substrate, that is, per spot of area l m 2 , or 0.01 nm mu g / mm 2 or more, 0.05 ⁇ g / mm 2 or more, 0.1 ⁇ g / mm 2 or more, a force is 0. 25 ⁇ g / mm 2 or more, 0.5 ⁇ g / mm 2 or more, preferably 1 mu g / mm 2 or more. If the fixed amount per spot is less than this, it is difficult to measure the direct light absorption using a spectrophotometer.
- the immobilization density can also be specified by the degree of light absorption on the protein array, and the absorbance at the immobilized protein spot is 0.0005. More than 0.001, more than 0.002, more than 0.003, more than 0.004, more than 0.005, more than 0.006, more than 0.007, more than 0.008, more than 0.009 or more than 0.01, or other proteins or proteins on fixed protein
- the density at which the change in absorbance when other compounds are bound is 0.0005 or more, 0.001 or more, 0.002 or more, 0.003 or more, 0.004 or more, 0.005 or more, 0.006 or more, 0.007 or more, 0.008 or more, 0.009 or more, or 0.01 or more is desirable.
- the area of the spot where the protein is fixed is not limited, but it is about 0.1 mm 2 or more and about 10 mm 2 , for example, lmm 2 to 10 mm 2 .
- the area of the spot where the protein is fixed is not limited, but it is about 0.1 mm 2 or more and about 10 mm 2 , for example, lmm 2 to 10 mm 2 .
- how to determine the absorbance of the immobilized protein spot will be described later.
- the orientation-controlled protein immobilization means immobilization of a protein on a substrate at one end of the peptide chain of the protein, for example, immobilization at the carboxy terminal or amino terminal of the peptide chain.
- Examples of the method for immobilizing proteins by controlling the orientation include the methods described in Japanese Patent No. 2517861, Japanese Patent No. 2990271, Japanese Patent No. 3047029, and Japanese Patent Application Laid-Open No. 2003-344396.
- the modified protein After preparing a modified protein by introducing an amino acid sequence consisting of several amino acid residues having a carboxy terminus as a carboxy terminus, the modified protein is immobilized via a mercapto group in the cysteine residue at the carboxy terminus. Can be combined. In this case, NH -R -CO
- R and R are arbitrary amino acid sequences, Y is a primary amine functional group
- Protein immobilization can be performed, for example, as follows.
- the protein array adsorbed on the substrate can be obtained by adsorption binding by ionic bond. Furthermore, the adsorbed protein represented by this formula is treated with a cyanating reagent.
- a protein array aligned and immobilized on a substrate can be obtained by 2 1 2 1 combination.
- R and R are arbitrary amino acid sequences, R is strongly negatively charged near neutrality, and the formula (1) NH ⁇
- R is optional and its amino acid
- Gly-Gly-Gly-Gly-Gly or the like can be used.
- a sequence containing a lot of aspartic acid and glutamic acid is preferable.
- the isoelectric point of a protein depends on the type and number of amino acids. For example, when many basic amino acids such as lysine and arginine are contained, aspartate or glutamate exceeding the total number of basic amino acids is required. A person skilled in the art can easily estimate the isoelectric point of a protein by calculation.
- a sequence rich in aspartic acid and glutamic acid should be designed so that the isoelectric point of the substance represented by the above formula (1) has a value between 4 and 5.
- a preferred sequence is alanyl-polyaspartic acid.
- any solution can be used as long as it is a solvent that guarantees the above-described electrostatic interaction and can dissolve the protein represented by the formula (1) and can adjust the pH. Is possible.
- various buffers such as phosphate buffer and borate buffer, alcohols such as methanol and ethanol, dimethylformamide, dimethyl sulfoxide and the like can be used.
- the reaction temperature is a force that can provide high reaction efficiency at room temperature.
- the solvent used does not freeze or boil, and the protein represented by the above formula (1) does not aggregate as a result of denaturation. be able to.
- the cyanation reaction can be performed using a cyanation reagent.
- a cyanating reagent 2-nitro-5-thiocyanobennzoic acid (NTCB) (Y. Degani, A. Ptchornik, Biochemistry, 13,1—1 ⁇ (1 974 ))
- NTCB 2-nitro-5-thiocyanobennzoic acid
- CDAP 1-cyan-4-dimethylaminopyridinium tetrafluoroborate
- NTCB and CDAP can be used as they are.
- the SH group can also be cyanated according to the method described in the document O. Wood & Catsipoolas, J. Biol. Chem. 233, 2887 (1963)).
- the cyanide by cyanogen reagent is expressed on the immobilization substrate by the formula (1) NH-R -CO-NH-R-CO- NH- CH (CH-SH)-CO- NH
- the protein represented by the above formula (1) and the cyanating reagent may be applied simultaneously to the fixed substrate.
- the cyanation treatment can be performed by adding a cyanating agent to the surface of the substrate on which the protein is adsorbed.
- cyanation can be performed by means such as immersing the substrate on which the protein is adsorbed in a cyanating agent.
- a cyanating reagent may be applied to the portion on the substrate where the protein is adsorbed using the same aligning means.
- the drugs may be applied simultaneously.
- a spotter (array machine) can be used for the immobilization of the protein of the present invention.
- a spotter is a container that contains a protein sample such as a microtiter plate by moving the tip of a pin or a substrate for spotting a protein sample by a high-performance motor under the control of a computer in the XYZ direction. It is a device that carries protein samples to the substrate surface.
- a commercially available thing can be used as a spotter. Examples of commercially available spotters include SPBIO2000 from Hitachi Software Engineering, GMS417Arrayer from Takara Shuzo, Gene Tip Stamping from Nippon Laser Electronics, and a piezo biochip spotting system from PerkinElmer.
- a protein array can be prepared by using inkjet printing technology for immobilizing the protein of the present invention.
- Formula (1) NH—R—CO—NH—R—CO—NH—CH (CH—SH) —CO—NH—R—COOH
- the amino group represented by NH-Y is introduced into the protein by inkjet printing technology.
- Ink jet printers used for printing use an element that deforms when a voltage is applied (piezo element) due to differences in the ink ejection method, and the deformation reduces the ink storage space in the head.
- piezo element There is a piezo method that ejects ink and a thermal ink jet method that generates bubbles by heating the heater in the nozzle and pushes ink by the bubbles.
- a linter can also be used.
- a piezo printer is preferable in consideration of denaturation of protein by heat.
- the ink jet printer a commercially available printer can be used, for example, a commercially available EPSON PM series printer or Canon PIXUS series ink jet printer.
- a protein solution represented by the above formula (1) may be filled in an ink cartridge of a printer and installed in the printer.
- the printing pattern of the printer can be set freely by using appropriate software such as drawing software. Even if a line pattern that is fixed in a linear shape is adopted, an arbitrary number of dots (spots) can be formed on a certain area. A fixed dot pattern may be used. At this time, the amount of the protein solution discharged at one time can be freely set. For example, when a line pattern is adopted, a force of several tens of meters may be fixed in a line shape of several millimeters.
- a line pattern of an arbitrary width can be fixed within this range.
- one drop of protein solution can be ejected per dot to fix the protein as a circular dot with a diameter of several meters or several millimeters, By adjusting the patterning during printing, dots can be formed in a rectangular shape with a side of several meters to several millimeters.
- the discharge amount and discharge speed of the protein solution may be appropriately set according to the desired dot pattern.
- One dot The amount of protein immobilized on one line is as described above. At this time, the concentration of the protein solution used for immobilization is ImM ⁇ : The amount of protein solution to be immobilized as desired by LM. Is preferably about 0.11 to 1001, but is not limited, and the concentration of the protein solution and the amount of the protein solution to be immobilized can be appropriately changed according to the mass of the protein to be immobilized.
- the number of types or spots of proteins immobilized on one substrate is at least 1, preferably 5 or more, more preferably 10 or more, more preferably 50 or more, particularly preferably 100. That's it.
- a protein when a protein is immobilized on a substrate, an amino group is introduced onto the substrate, and the amino group is bound to the carboxy terminus of the protein peptide.
- a matrix capable of polymerizing a primary amine having an amino group on the substrate examples include polyamine, arylamine, and polylysine. These primary amine polymers may be mixed with an appropriate carrier, cast on a substrate, and a film may be formed on the substrate.
- a carrier for example, a nozzle mouth gel can be used.
- “Hide mouth gel” refers to a gel containing at least a crosslinked or network structure made of a polymer and water supported or held in the structure (dispersed liquid).
- the water-soluble or hydrophilic polymer compounds that should give a gel-like gel include methylcellulose, dextran, polyethylene oxide, polypropylene oxide, polybutyl alcohol, poly (vinyl pyrrolidone), poly (vinyl) -bulucacetamide, Butylpyridine, polyacrylamide, polymethacrylamide, poly ⁇ -methyl acrylamide, polyhydroxymethyl acrylate, polyacrylic acid, polymethacrylic acid, polyvinyl sulfonic acid, polystyrene sulfonic acid and their salts, poly ⁇ , ⁇ -dimethylamino Examples thereof include ethyl methacrylate, poly ⁇ , ⁇ -jetylaminoethyl methacrylate, poly ⁇ , ⁇ -dimethylaminopropyl acrylamide,
- Amino-Serrophine (sold by Seikagaku Corporation), AF-Aminotopearl (sold by TOSOH), ⁇ -Sepharose 4 ⁇ and lysine-Sepharose 4 ⁇ (sold by Amersham Almacia), Affigel 102 ( Commercially available carriers having primary amino groups, such as sold by Biorad) and Porous 20 mm (sold by Boehringer Mannheim) may be used.
- the primary amine polymer and the polyacrylamid For bonding with a carrier such as a metal, it is necessary to polymerize the carrier. For example, ultraviolet irradiation treatment is effective.
- a silane coupling agent for the bonding between the matrix and the substrate such as glass, for example, a silane coupling agent may be used.
- the silane coupling agent is a substance capable of forming a covalent bond with both the glass surface and the matrix such as polyacrylamide. Inorganic substances and organic substances can be combined.
- a silane coupling agent is generally a compound having a structure of R-Si-X3, where X is an alkoxy group such as a methoxy group (-OC H3), which is hydrolyzed to produce a silanol group (Si-OH )become .
- This silanol group reacts with the silanol group present on the substrate surface, such as hydrogen bonding and dehydration condensation, to form a stable siloxane bond (S-to-O-Si) to form a hydrophobic R- film on the substrate surface.
- silane coupling agent commercially available ones such as Amersham's nodidosilane (Bind-silane; 3-Methacryloxypropyltrimethylhoxysilane) can be used.
- the protein immobilized on the substrate is irradiated with light, and the absorption of light by the protein is measured.
- the absorption of ultraviolet light by the protein is preferably measured by irradiating the protein immobilized on the ultraviolet transparent substrate with ultraviolet light.
- a spectroscope may be used as the light irradiation means.
- the spectrometer any of a spectrometer using an optical filter, a dispersion spectrometer, and a Fourier transform spectrometer can be used.
- ultraviolet light is used as irradiation light, a dispersive spectrometer is desirable.
- the light to be used any of ultraviolet light, visible light, and infrared light can be used.
- the wavelength is 200 to 310 nm.
- ultraviolet light having a wavelength of about 280 nm, 224 to 236 nm, or 205 nm that is absorbed by the protein is desirable.
- light having a characteristic absorption wavelength of the compound may be used.
- the wavelength of light to be irradiated may be fixed to a fixed wavelength, or may be measured at a plurality of wavelengths after fixing the wavelength. Also, the wavelength may be changed. By measuring while changing the wavelength, the absorption spectrum of the protein on the protein array or a compound other than the protein interacting with the protein can be measured.
- a commercially available spectrophotometer can be used for measurement by mounting a substrate on which the protein of the present invention is immobilized in a cell chamber in which the spectrophotometer cell is mounted.
- a substrate on which the protein of the present invention is immobilized in a cell chamber in which the spectrophotometer cell is mounted Tampa
- the surface on which the quality is fixed may be directed to the light irradiation means side or the opposite light detection means side.
- a lens or slit can be provided on the optical path for irradiating the substrate with light from the light irradiating means to adjust the width of the optical path, etc., so that light can be applied to the necessary part of the substrate.
- the transmitted light at each spot is measured at once by irradiating the entire fixed protein spotted on the substrate with light.
- a one-dimensional photodetector it is only necessary to move the light irradiation means so that only a specific spot on the substrate is irradiated with light and irradiate all spots with light. . In this case, the photodetector is moved simultaneously with the movement of the light irradiation portion.
- the light When light is irradiated onto a substrate on which a protein is immobilized, the light is absorbed by a compound other than the protein bound to the immobilized protein, the protein bound to the immobilized protein, and the protein bound to z or the immobilized protein.
- the In the present invention light transmitted through the substrate without being absorbed is measured.
- a light detection means is used for the measurement of transmitted light.
- the light detection means is a means for outputting the light intensity as an electric signal, and either an internal photoelectric effect type photodetector or an external photoelectric effect type photodetector can be used.
- the internal photoelectric effect detector is a detector that uses charge separation in semiconductors by light, and detects a potential difference from a photoconductive detector that detects changes in electrical conductivity due to carriers generated by charge separation.
- Photoconductive detectors include charge coupled devices (CCD), photodiodes (PD), and photodiode arrays (PDA).
- External photoelectric effect photodetectors include phototubes and photomultipliers that detect photoelectron-powered electrons in a vacuum using incident photons and detect the electrons directly or after amplification.
- a force multi-channel detector PDA or CCD that can use any of these light detection means is more desirable, and a two-dimensional multi-channel detector CCD is more desirable. It is also possible to use IPDA or ICCD, which is a PDA or CCD with an electron multiplication function using a microchannel plate. In the present invention, IPD A and ICCD are included in PDA and CCD, respectively.
- the CCD When measuring transmitted ultraviolet light using ultraviolet light as irradiation light, the CCD must be compatible with ultraviolet light.
- Texas Instruments For example, IMPACTR ON TM CCD elements such as TC253SPD-30 / TC253SPD-B0 TC285SPD-30 / TC285SPD-BO manufactured by HORIBA Joban Yvon can be used. A commercially available CCD camera using these elements may also be used.
- IMPACTROM TM CCD digital cameras such as MC681SPD MC285SPD-LOBO manufactured by Texas Instruments.
- the CCD for ultraviolet light is very expensive. When used in commercially available CCD digital cameras and corresponding to UV light!
- an ultraviolet-visible light conversion device which is a nonlinear optical material, may be used.
- An ultraviolet-visible light conversion device is a device that converts ultraviolet light into visible light, such as wavelength conversion glass such as fluorescent glass, fluorescent materials such as fluorescent pigments, silver salt sensitizers and non-silver salt sensitizers. Agents.
- fluorescent glass is desirable, and fluorescent glass contains rare earth ions that become fluorescently active ions, and is converted to visible light of 400 nm or more by irradiating 200 400 ultraviolet light.
- Fluorescent glass for example, Lumilas-G9, Lumilus-R7, Lumilus-B, etc.
- the fluorescent glass may be placed between the ultraviolet light transmissive substrate on which the protein is immobilized and the light detection means.
- the fluorescent pigment or sensitizer may be applied to a glass plate and placed between the ultraviolet light transmissive substrate on which the protein is immobilized and the light detection means. It may be applied to the opposite side of the hazy UV light transmissive substrate. In the latter case, the surface on which the protein is immobilized is irradiated with ultraviolet light.
- the ultraviolet light transmitting substrate on which the protein is immobilized is irradiated with ultraviolet light, and the ultraviolet light that is not absorbed by the fixed protein or the visible light in which the ultraviolet light power is also converted is detected. Detect with.
- a signal is output as image data or video data from the light detection means, and the signal is processed by the analysis means, and the absorbance of the protein on the substrate is measured.
- the type of image data is not limited.
- image data can be obtained as a BMP image and processed.
- the light intensity of each spot on the substrate is determined.
- processing data can be displayed in different colors for each spot depending on the difference in absorption. It corresponds to the 2D coordinates on the substrate by displaying the 3D coordinates with the absorbance displayed in height.
- Video data can be obtained by imaging a substrate on which a protein is immobilized with a video camera having a CCD. By obtaining video data, protein absorption on the substrate can be analyzed in real time. To process video data in real time, you can use a video capture board and commercially available software, such as Direct X (manufactured by Windows)!
- the protein on the substrate was immobilized, and the intensity of light transmitted through the site and the intensity of light transmitted through the site immobilized on the protein were measured to fix the protein. Then, the transmittance of the light transmitted through the portion where the protein is immobilized is calculated as 100% transmitted light that is not absorbed by the light transmitted through the portion.
- the data obtained by the light detection means is structured as pixels. When the protein is immobilized, the data on the light intensity for a plurality of pixels is obtained and averaged at any site (I Furthermore, protein is fixed
- the light intensity data can be obtained and averaged for multiple pixels, and the light transmittance of each spot can be obtained (1).
- Absorbance can be determined by -log (1 1 1). In this case, force immobilization density or
- the immobilization density of the immobilization protein to be measured can be obtained by obtaining the relationship between the immobilization density and the absorbance.
- the absorbance of a standard protein of density D is As
- the absorbance of a test protein whose density is unknown is At
- the density of the test protein can be obtained by the formula D X (At / As).
- a standard protein of known density may be immobilized on the substrate as a control spot.
- the ultraviolet light applied to the substrate on which the protein is immobilized may be ultraviolet light fixed at a fixed wavelength, or the lnm force may be scanned at intervals of several tens of nm. Oh ,.
- Light absorption at a spot on the substrate can be measured by causing a contact reaction between the immobilized protein and another protein interacting with the protein or a compound other than a protein such as a low molecular weight compound.
- the interaction between the immobilized protein and the ligand protein that binds to the protein can be detected and analyzed.
- the fixed key tamper The interaction between proteins and ligands other than proteins can be detected and analyzed.
- an antibody or antigen is immobilized at a constant density, reacted with an antibody or antibody that specifically binds to the antibody or antigen, and then immobilized by measuring the absorption of the protein on the substrate. The amount of antibody or antigen bound to the antigen or antibody can be measured.
- the absorbance on the protein array is measured before and after the contact reaction between the immobilized protein and another protein or non-protein compound
- the measured value before the contact reflects the absorbance of the fixed protein only
- the measured value after contact reflects the complex where the immobilized protein interacts with other proteins or compounds other than proteins. Therefore, by taking the difference in absorbance before and after contact, the amount of other proteins or compounds other than proteins that interact with the immobilized protein can be determined.
- the amount of protein interacted and the amount of other proteins interacted can be measured.
- the absorption change in the ultraviolet region derived from the absorption of the amino acid side chain accompanying ligand binding can be used. For example, by changing the concentration of a ligand that does not absorb in the ultraviolet region and measuring the change in absorbance at a specific wavelength in the ultraviolet region or the change in absorption spectrum in the ultraviolet region due to ligand binding, it is an indicator of the strength of ligand binding. The coupling constant can be obtained. In addition, since many proteins do not absorb in the visible region, for ligands that absorb in the visible region, the change in absorbance at a specific wavelength in the visible region or the change in absorption spectrum in the visible region is measured. Then, a binding constant representing the binding of the target ligand or the strength of the binding can be obtained.
- a protein array base material was produced by forming a polyacrylamide gel thin plate containing a polymer having an amino group on the surface of quartz glass. Since this substrate absorbs almost no light in the visible or ultraviolet wavelength region (is transparent), the optical activity of the protein present in the gel can be directly detected. That is, it is possible to detect and analyze an immobilized protein and a protein that interacts with the immobilized protein without performing a special labeling operation by an optical method.
- green fluorescent protein SEQ ID NO: 1
- dihydrofolate reductase SEQ ID NO: 4
- the green fluorescent protein is green under natural light and can be easily confirmed with the naked eye, it was used to monitor the process of fixation.
- Dihydrofolate reductase on the other hand, has the property of absorbing UV light around 280, similar to general proteins, so it can be used for testing to detect its optical activity on the array after fixation. Used as a protein.
- bind silane was processed into quartz glass (7.7cm x 2.6cm x 1mm slide glass size, VIOSIL-SG2AS; purchased from Shin-Etsu Chemical Co., Ltd.) After that, a polyacrylamide gel thin plate (2.4 cm ⁇ 5.0 cm ⁇ about 50 / zm) containing a polymer having an amino group (poly L lysine having a molecular weight of 30,000 to 70,000; purchased from Sigma) was formed.
- Nodosilane (purchased from Amersham) has a property of forming a covalent bond with both the quartz glass slide and the polyacrylamide molecule, and was used to firmly bond both.
- bind silane to quartz slide glass Introduced to the surface. Prepare a solution of 8 ml ethanol, 0.2 ml acetic acid, 1.8 ml pure water, and 101 bind silane, drop it on a 0.5 ml quartz glass slide in a fume hood, and use Kimwipe to make a glass. The whole surface was spread and dried for 1.5 hours.
- a polyacrylamide gel thin plate was formed on the surface of the quartz slide glass into which bound silane had been introduced in the following manner.
- a 37.5: 1 mixture of acrylamide and methylenebisatarylamide purchased from Bio-Rad
- poly L lysine poly L lysine with a molecular weight of 30,000 to 70,000; purchased from Sigma
- the polyacrylamide concentration is 10% and the poly L lysine concentration is 0.5%.
- a solution was prepared on lml ice.
- a protein for immobilization (SEQ ID NO: 3) corresponding to COOH was prepared, and the conditions for the immobilization reaction were examined.
- Recombinant Escherichia coli expressing the green fluorescent protein for immobilization was cultured at 37 ° C in 2 liters of medium (containing 10 g sodium chloride, 10 g yeast extract, 16 g tryptone, 280 mg ampicillin sodium). After overnight culture, the culture broth was centrifuged at a low speed for 20 minutes (5000 rotations per minute) to obtain cells having a wet weight of about 5 g. This was suspended in a 10 mM phosphate buffer (pH 7.0) containing 30 ml of ImM ethylenediamine 4 acetic acid (EDTA), and the cells were disrupted using a French press device to obtain a cell-free extract.
- medium containing 10 g sodium chloride, 10 g yeast extract, 16 g tryptone, 280 mg ampicillin sodium. After overnight culture, the culture broth was centrifuged at a low speed for 20 minutes (5000 rotations per minute) to obtain cells having a wet weight of about 5 g. This was suspended in a 10
- Gly-Gly-Gly-Gly-Gly-Gly-Cys-Ala-Asp-Asp-Asp-Asp as a sequence for immobilization at the carboxy terminus of the dihydrofolate reductase mutant enzyme (abbreviated as AS-DHFR) (SEQ ID NO: 4)
- AS-DHFR dihydrofolate reductase mutant enzyme
- SEQ ID NO: 2 The sequence (SEQ ID NO: 2) is attached and the formula (1) NH-R -CO-NH-R-CO- NH- CH (CH-SH)-CO- NH
- Optical activity in the outside line region was used for detection on the array.
- a DNA sequence obtained by adding the ribosome binding sequence necessary for gene expression and the restriction enzyme cleavage site necessary for vector integration to the DNA sequence encoding SEQ ID NO: 5 was synthesized, and expressed in the EcoRI and Hindlll sites of the expression vector PUC18. Integration and recombinant plasmids were made. This was introduced into Escherichia coli JM109 and expressed as described below, followed by separation and purification. [0089] Recombinant Escherichia coli expressing AS-DHFR for fixed yeast was cultured in 2 liters of medium (containing 10 g of sodium chloride, 10 g of yeast extract, 16 g of tryptone, 280 mg of ampicillin sodium).
- the culture was centrifuged at a low speed for 20 minutes (5000 rotations per minute) to obtain cells having a wet weight of about 5 g. This was suspended in 10 mM phosphate buffer (pH 7.0) containing 30 ml of ImM ethylenediaminetetraacetic acid (EDTA), and the cells were disrupted using a French press device to obtain a cell-free extract.
- 10 mM phosphate buffer (pH 7.0) containing 30 ml of ImM ethylenediaminetetraacetic acid (EDTA)
- the green fluorescent protein for immobilization or the AS-DHFR for immobilization was adsorbed and aligned as follows. Attach a microload pipette tip (purchased from QSP) with a tip opening radius of approximately 0.5 mm to a syringe for microphone mouth injection (purchased from Norton Milton) with a capacity of 10 ⁇ 1.
- a microload pipette tip purchased from QSP
- a syringe for microphone mouth injection purchased from Norton Milton
- the holder was moved in three directions, up, down, left, right, and back, to make a protein spot device. Using this device, it was possible to control protein spotting in units of 0 • 5 mm for position and 0.1 ⁇ 1 for solution volume.
- protein solutions having concentrations of 10 mg / ml, 20 mg / ml, and 40 mg / ml were spotted 0.21 at a time.
- 0.5 g, 1 g, 2 g, 4 g, and 8 g of green fluorescent protein were spotted at different strength points.
- the protein solution formed droplets with a diameter of about 1 mm on the surface of the gel, but was quickly absorbed into the gel.
- the spot condition was observed by immersing the array substrate in 10 mM phosphate buffer (pH 7.0). Spot diffusion was observed when 0.5 g, 1 ⁇ g, or 2 g of protein was used.
- the optical activity of the immobilized protein was measured.
- the equipment used for the measurement is as follows.
- Shimadzu UV-1200 or AVIV-ATG14 was used as the light source for light irradiation.
- the former is characterized by the fact that the slit width cannot be adjusted, and the output is relatively low at about 30W (0.3mA x 100V).
- the latter uses a Xenon lamp (450W), and the slit width can be adjusted.
- An observation system was constructed by moving the light path from the light source's diffraction grating power to the outside using a UV mirror placed in front of the cell holder.
- Figure 4 shows the optical system diagram (light path) of the observation system of Shimadzu UV-1200. In the row optical system diagram of Fig. 4, the wavelength is set on the device control side because the diffraction grating is in the optical system.
- FIG. 5 shows an optical system diagram when the AVIV ATF104 is used.
- a light source is installed on the left side of the device, and the light moves as shown by the arrow.
- the mirror holder 1 (cell holder) was installed in the 1 part, the mirror holder 1 (cell holder) in the 2 part, the mirror 2 in the 3 part, and the CCD camera in the 4 part.
- the CCD camera used was Logitech Qcam QV-700N from Logitech.
- the resolution of the CCD was 300,000 pixels.
- the gain adjustment of the CCD element was performed using the application attached to the CCD camera.
- the focal length to the CCD camera is also 18cm or more in the mirror force of part 3 in the figure.
- the protein-immobilized substrate to be mounted on the substrate holder is spotted with DHF R at ⁇ l to 2 mm in the range of 20 mm x 20 mm on the substrate glass made of synthetic quartz glass as described in [1] to [5] above. Immobilized.
- the amount of protein per spot was 10, 15 and 20 g.
- As an ultraviolet-visible conversion device Lumilas B manufactured by Sumita Optical Glass Co., Ltd. was used.
- Figure 6 shows a schematic diagram of a glass substrate on which AS-D HFR is fixed. As shown in Fig. 6, AS-DHFR fixed glass substrate and fluorescent glass were combined.
- the diameter of the spot was 1 to 2 mm, the size of the light cross section on which the light hit was 20 mm X 20 mm, and the distance between the spots was less than 4 mm.
- the amount of immobilized protein in each spot was 10, 15 and 20 ⁇ g / spot from the right column, respectively, as shown on the right of FIG.
- Ultraviolet light with a wavelength of 280 nm was irradiated, and the fluorescent light irradiated from the fluorescent glass was imaged.
- the imaging conditions were shutter speed 1/30, gain max, and image size 3 20 X 240.
- Figure 7 shows the image taken on the left.
- the spot portion where DHFR is fixed is purple due to the fixed DHFR. Since fluorescent light is not emitted from fluorescent glass, which absorbs external light and weakly transmits ultraviolet light, only the spot portion is not illuminated. Under the above conditions, since the immobilization density was too high, the absorption was too large, and the absorbance measurement was saturated.
- the emission intensity from the glass was defined as I, and it was determined by log (I / 1). Four spots at each concentration
- Figure 9 shows the results of plotting the average absorbance and the wavelength of the ultraviolet rays irradiated with the error bar. From the absorbance at 280 nm, the linear density of the protein at each point where 0.5, 1, 2 and 4 g were spotted was calculated according to the molecular extinction coefficient of AS-DHFR. Estimates were cm, 2.8 nmoles / cm, and 4.7 nmoles / cm. In addition, by fitting the absorbance value at each wavelength to the spectrum in the AS-DHFR solution, 0.7 M (the spectrum indicated by the curve in Fig. 1) and 1.3 ⁇ (the curve in Fig. 2), respectively.
- the measurement of the present invention showed that the absorption spectrum of the immobilized protein closely matched that in solution.
- the spectrum strength increased in proportion to the amount of protein required for fixation, and that quantitative analysis of the fixed protein could be performed.
- the density of proteins spotted and immobilized using 0.5, 1, 2, and 4 g of AS-DHFR is calculated assuming that the molecular weight of AS-DHFR is 18000.
- the fixed protein is fixed. It is conceivable that the density of 0.01 ⁇ g / mm 2 can be sufficiently accommodated.
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Hematology (AREA)
- Urology & Nephrology (AREA)
- Biomedical Technology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Microbiology (AREA)
- Cell Biology (AREA)
- Biotechnology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Tropical Medicine & Parasitology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006546655A JP4528951B2 (ja) | 2004-12-03 | 2005-12-02 | タンパク質アレイ用検出および解析システム |
US11/792,095 US8038945B2 (en) | 2004-12-03 | 2005-12-02 | Detection and analysis system for protein array |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-351446 | 2004-12-03 | ||
JP2004351446 | 2004-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006059727A1 true WO2006059727A1 (ja) | 2006-06-08 |
Family
ID=36565159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/022213 WO2006059727A1 (ja) | 2004-12-03 | 2005-12-02 | タンパク質アレイ用検出および解析システム |
Country Status (3)
Country | Link |
---|---|
US (1) | US8038945B2 (ja) |
JP (1) | JP4528951B2 (ja) |
WO (1) | WO2006059727A1 (ja) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008115152A (ja) * | 2006-10-10 | 2008-05-22 | National Institute Of Advanced Industrial & Technology | タンパク質の配向制御固定化に適したタンパク質を固定化した担体 |
JP2008115151A (ja) * | 2006-10-10 | 2008-05-22 | National Institute Of Advanced Industrial & Technology | タンパク質の配向制御固定化に適したタンパク質 |
JP2008115153A (ja) * | 2006-10-10 | 2008-05-22 | National Institute Of Advanced Industrial & Technology | タンパク質の配向制御固定化に適したタンパク質を設計する方法 |
WO2010001876A1 (ja) * | 2008-06-30 | 2010-01-07 | 株式会社ハイペップ研究所 | バイオチップ用基板及びその製造方法 |
JP2010085152A (ja) * | 2008-09-30 | 2010-04-15 | Fujifilm Corp | 撮影装置 |
JP2010127856A (ja) * | 2008-11-28 | 2010-06-10 | National Institute Of Advanced Industrial Science & Technology | タンパク質アレイを用いた検出および解析方法 |
JP2010127853A (ja) * | 2008-11-28 | 2010-06-10 | National Institute Of Advanced Industrial Science & Technology | モノリスゲルを用いたタンパク質アレイ用検出および解析システム |
JP2012093371A (ja) * | 2012-02-03 | 2012-05-17 | Sharp Corp | 標的認識分子および標的認識分子を固定化する方法 |
JP2014098645A (ja) * | 2012-11-15 | 2014-05-29 | Oem System Co Ltd | 体液成分分析装置および体液成分分析方法 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5963248B2 (ja) | 2012-06-14 | 2016-08-03 | 国立研究開発法人産業技術総合研究所 | 抗体精製用担体並びにその製造方法及びその用途 |
EP3069140A4 (en) | 2013-11-12 | 2017-06-14 | Bio-Rad Laboratories, Inc. | Hcp antiserum validation using a non-interfering protein stain |
CN104819954B (zh) * | 2015-04-21 | 2018-04-17 | 曾安 | 免标记物近红外检测样品中生物物质含量的方法 |
JP6947109B2 (ja) * | 2018-04-03 | 2021-10-13 | 株式会社デンソー | センサ、及び構造体の製造方法 |
JP7265401B2 (ja) | 2019-04-15 | 2023-04-26 | 三菱重工業株式会社 | 粒子径取得装置、粒子径取得システム、及び粒子径取得方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09500724A (ja) * | 1993-07-30 | 1997-01-21 | バイオルーミン・コーポレーション | 光ファイバを通すための可動リンケージを有する多機能測光器 |
JP2002515125A (ja) * | 1997-06-02 | 2002-05-21 | オーロラ バイオサイエンシズ コーポレーション | 生物学的および生化学的サンプルの蛍光測定用低バックグラウンドマルチウェルプレート |
JP2002514739A (ja) * | 1997-10-31 | 2002-05-21 | カール・ツアイス・シュティフテュング・ハンデルンド・アルス・カール・ツアイス | 光学的アレイシステムおよびマイクロタイタープレート用読み取り器 |
JP2003344396A (ja) * | 2002-05-23 | 2003-12-03 | National Institute Of Advanced Industrial & Technology | 配向制御したタンパク質の固定化方法およびそれを利用したタンパク質の整列固定化方法 |
WO2004007669A2 (en) * | 2002-07-11 | 2004-01-22 | President Biosystems | Protein chips |
JP2004325172A (ja) * | 2003-04-23 | 2004-11-18 | Asahi Kasei Corp | 透明炭化水素系重合体を用いるマイクロチップ |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6001587A (en) * | 1997-04-08 | 1999-12-14 | The United States Of America As Represented By The Secretary Of The Navy | Chemically specific patterning on solid surfaces using surface immobilized enzymes |
US6229603B1 (en) | 1997-06-02 | 2001-05-08 | Aurora Biosciences Corporation | Low background multi-well plates with greater than 864 wells for spectroscopic measurements |
WO2002074979A2 (en) * | 2001-03-20 | 2002-09-26 | Ortho-Clinical Diagnostics, Inc. | Expression profiles and methods of use |
US6916541B2 (en) * | 2001-09-07 | 2005-07-12 | Penn State Research Foundation | Modified substrates for the attachment of biomolecules |
JP2004177236A (ja) * | 2002-11-26 | 2004-06-24 | Shinwa Kako Kk | 生体物質検出装置およびそれに使用される新規生体物質構造物ならびにその製造および利用 |
-
2005
- 2005-12-02 JP JP2006546655A patent/JP4528951B2/ja not_active Expired - Fee Related
- 2005-12-02 WO PCT/JP2005/022213 patent/WO2006059727A1/ja active Application Filing
- 2005-12-02 US US11/792,095 patent/US8038945B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09500724A (ja) * | 1993-07-30 | 1997-01-21 | バイオルーミン・コーポレーション | 光ファイバを通すための可動リンケージを有する多機能測光器 |
JP2002515125A (ja) * | 1997-06-02 | 2002-05-21 | オーロラ バイオサイエンシズ コーポレーション | 生物学的および生化学的サンプルの蛍光測定用低バックグラウンドマルチウェルプレート |
JP2002514739A (ja) * | 1997-10-31 | 2002-05-21 | カール・ツアイス・シュティフテュング・ハンデルンド・アルス・カール・ツアイス | 光学的アレイシステムおよびマイクロタイタープレート用読み取り器 |
JP2003344396A (ja) * | 2002-05-23 | 2003-12-03 | National Institute Of Advanced Industrial & Technology | 配向制御したタンパク質の固定化方法およびそれを利用したタンパク質の整列固定化方法 |
WO2004007669A2 (en) * | 2002-07-11 | 2004-01-22 | President Biosystems | Protein chips |
JP2004325172A (ja) * | 2003-04-23 | 2004-11-18 | Asahi Kasei Corp | 透明炭化水素系重合体を用いるマイクロチップ |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008115152A (ja) * | 2006-10-10 | 2008-05-22 | National Institute Of Advanced Industrial & Technology | タンパク質の配向制御固定化に適したタンパク質を固定化した担体 |
JP2008115151A (ja) * | 2006-10-10 | 2008-05-22 | National Institute Of Advanced Industrial & Technology | タンパク質の配向制御固定化に適したタンパク質 |
JP2008115153A (ja) * | 2006-10-10 | 2008-05-22 | National Institute Of Advanced Industrial & Technology | タンパク質の配向制御固定化に適したタンパク質を設計する方法 |
WO2010001876A1 (ja) * | 2008-06-30 | 2010-01-07 | 株式会社ハイペップ研究所 | バイオチップ用基板及びその製造方法 |
JP2010008378A (ja) * | 2008-06-30 | 2010-01-14 | Hipep Laboratories | バイオチップ用基板及びその製造方法 |
US8822607B2 (en) | 2008-06-30 | 2014-09-02 | Hipep Laboratories | Biochip substratum and method for production thereof |
US9857369B2 (en) | 2008-06-30 | 2018-01-02 | Hipep Laboratories | Biochip substratum and method for production thereof |
JP2010085152A (ja) * | 2008-09-30 | 2010-04-15 | Fujifilm Corp | 撮影装置 |
JP2010127856A (ja) * | 2008-11-28 | 2010-06-10 | National Institute Of Advanced Industrial Science & Technology | タンパク質アレイを用いた検出および解析方法 |
JP2010127853A (ja) * | 2008-11-28 | 2010-06-10 | National Institute Of Advanced Industrial Science & Technology | モノリスゲルを用いたタンパク質アレイ用検出および解析システム |
JP2012093371A (ja) * | 2012-02-03 | 2012-05-17 | Sharp Corp | 標的認識分子および標的認識分子を固定化する方法 |
JP2014098645A (ja) * | 2012-11-15 | 2014-05-29 | Oem System Co Ltd | 体液成分分析装置および体液成分分析方法 |
Also Published As
Publication number | Publication date |
---|---|
US20080261827A1 (en) | 2008-10-23 |
JPWO2006059727A1 (ja) | 2008-06-05 |
JP4528951B2 (ja) | 2010-08-25 |
US8038945B2 (en) | 2011-10-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4528951B2 (ja) | タンパク質アレイ用検出および解析システム | |
US20050214167A1 (en) | High throughput screening with parallel vibrational spectroscopy | |
US7033542B2 (en) | High throughput screening with parallel vibrational spectroscopy | |
US5981956A (en) | Systems and methods for detection of labeled materials | |
JP4662623B2 (ja) | ルミネッセンスを測定する方法及び装置 | |
JP3579321B2 (ja) | 2次元イメージング表面プラズモン共鳴測定装置および測定方法 | |
US10451630B2 (en) | Systems and methods for high throughput analysis of conformation in biological entities | |
US8675192B2 (en) | Method and device for high speed quantitative measurement of biomolecular targets on or in biological analysis medium | |
US20070082408A1 (en) | Apparatus for detecting one or more substances and method of detecting a substance | |
US20070139653A1 (en) | MEMS Micromirror Surface Plasmon Resonance Biosensor and Method | |
JP2003502660A (ja) | 統合マルチ導波管センサー | |
Li et al. | Autofluorescence detection in analytical chemistry and biochemistry | |
JP2010091553A (ja) | 生体分子の検出方法 | |
JP5207376B2 (ja) | タンパク質アレイを用いた検出および解析方法 | |
CN1664560A (zh) | 基于片上pcr的多通道表面等离子共振影像传感器 | |
WO2019131947A1 (ja) | 分光分析装置、分光分析方法、プログラム、記録媒体及び顕微鏡 | |
CN100575927C (zh) | 光激发彩色表面等离子体共振成像仪 | |
JP5339278B2 (ja) | モノリスゲルを用いたタンパク質アレイ用検出および解析システム | |
IL162965A (en) | Imaging device and method | |
KR101520028B1 (ko) | 바이오칩 제조 및 광검출 장치 | |
JP2004061286A (ja) | 表面プラズモン共鳴角センサー | |
US10634614B2 (en) | High powered lasers for western blotting | |
CA2388490A1 (fr) | Procede et dispositif d'analyse d'acides nucleiques fixes sur un support | |
JP2003172701A (ja) | 試料チップ解析装置 | |
Jin | Development of biosensor based on imaging ellipsometry and its applications |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KN KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006546655 Country of ref document: JP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 05811780 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 11792095 Country of ref document: US |