JP5992142B2 - エノエートレダクターゼを用いるα−およびβ−デヒドロアミノ酸の酵素的還元法 - Google Patents
エノエートレダクターゼを用いるα−およびβ−デヒドロアミノ酸の酵素的還元法 Download PDFInfo
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- JP5992142B2 JP5992142B2 JP2010536486A JP2010536486A JP5992142B2 JP 5992142 B2 JP5992142 B2 JP 5992142B2 JP 2010536486 A JP2010536486 A JP 2010536486A JP 2010536486 A JP2010536486 A JP 2010536486A JP 5992142 B2 JP5992142 B2 JP 5992142B2
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- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 1
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- CJNBYAVZURUTKZ-UHFFFAOYSA-N hafnium(IV) oxide Inorganic materials O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
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- 150000002402 hexoses Chemical class 0.000 description 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
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- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
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- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- CYPPCCJJKNISFK-UHFFFAOYSA-J kaolinite Chemical compound [OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[O-][Si](=O)O[Si]([O-])=O CYPPCCJJKNISFK-UHFFFAOYSA-J 0.000 description 1
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- FQGVVDYNRHNTCK-BYPYZUCNSA-N methyl (2s)-2-acetamidopropanoate Chemical compound COC(=O)[C@H](C)NC(C)=O FQGVVDYNRHNTCK-BYPYZUCNSA-N 0.000 description 1
- SMWNFFKPVLVOQQ-UHFFFAOYSA-N methyl 2-acetamidoprop-2-enoate Chemical compound COC(=O)C(=C)NC(C)=O SMWNFFKPVLVOQQ-UHFFFAOYSA-N 0.000 description 1
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- 125000001624 naphthyl group Chemical group 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
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- 239000002773 nucleotide Substances 0.000 description 1
- 125000003729 nucleotide group Chemical group 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 1
- 239000012430 organic reaction media Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 150000008300 phosphoramidites Chemical class 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
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- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000004853 protein function Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical compound C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000002708 random mutagenesis Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical class O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000000527 sonication Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000005931 tert-butyloxycarbonyl group Chemical group [H]C([H])([H])C(OC(*)=O)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/04—Alpha- or beta- amino acids
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Biotechnology (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Enzymes And Modification Thereof (AREA)
Description
R1、R2は、それぞれ独立して、H、C1-C6アルキル、C2-C6アルケニル、場合により置換されてもよい炭素環もしくは複素環式の芳香族もしくは非芳香族基、またはアルキルアリール基、またはカルボキシル基(-COOR)であり、
R3は、H、ホルミル、アセチル、プロピオニル、ベンジル、ベンジルオキシカルボニル、BOC、またはAllocであり、
Rは、H、C1-C6アルキル、またはアリールである]
式(1)または(2)の化合物を、
(i) 配列番号1、2、3、4、5、6のポリペプチド配列の少なくとも1つを含むか、または
(ii) 配列番号1、2、3、4、5、6と80%以上の配列同一性を示す、機能的に等価なポリペプチド配列を有する、
レダクターゼの存在下で還元することによる上記方法に関する。
- C1-C6-アルキル、特にメチル、エチル、プロピル、ブチル、ペンチルまたはヘキシル、および1回以上分岐する類似基、例えばi-プロピル、i-ブチル、sec-ブチル、tert-ブチル、i-ペンチルまたはネオペンチル、特に上記のC1-C4-アルキル基が好ましい;
- C2-C6-アルケニル、特に炭素原子数2〜6の上記アルキル基のモノ不飽和類似基、特に対応するC2-C4-アルケニル基が好ましい;
- 炭素環もしくは複素環式の芳香族もしくは非芳香族環、特に3〜12個の炭素原子および場合によりN、S、O(特にNまたはO)のような1〜4個のヘテロ原子を有する、場合により縮合した環。その例として以下が挙げられる:シクロプロピル、シクロブチル、シクロペンチル、シクロヘキシル、シクロヘプチル、これらのモノまたはポリ不飽和の類似環、例えばシクロブテニル、シクロペンテニル、シクロヘキセニル、シクロヘプテニル、シクロヘキサジエニル、シクロヘプタジエニル;フェニルおよびナフチル;ならびにO、NおよびSから選択される1〜4個のヘテロ原子を有する5〜7員の飽和もしくは不飽和複素環式基(ここで、該複素環はさらなる複素環または炭素環に縮合してもよい)。特に、ピロリジン、テトラヒドロフラン、ピペリジン、モルホリン、ピロール、フラン、チオフェン、ピラゾール、イミダゾール、オキサゾール、チアゾール、ピリジン、ピラン、ピリミジン、ピリダジン、ピラジン、クマロン、インドールおよびキノリンから誘導される複素環式基が挙げられる。これらの環式基のみならず、上記のアルキルおよびアルケニル基もまた、場合により1回以上(例えば1、2または3回)置換されてもよい。適当な置換基の例として、ハロゲン、特にF、Cl、Br;-OH、-SH、-NO2、-NH3、-SO3H、C1-C4-アルキルおよびC2-C4-アルケニル、C1-C4-アルコキシ;およびヒドロキシ-C1-C4-アルキルが挙げられ、ここで、アルキルおよびアルケニル基は先に定義したとおりであり、アルコキシ基は先に定義した対応するアルキル基から誘導される;
- BOCはtert-ブトキシカルボニル(保護)基である;
- Allocはアリルオキシカルボニル(保護)基である。
本発明の方法では、pHをpH4〜12、好ましくはpH4.5〜9、特に好ましくはpH5〜8の範囲に保持することが有利である。少なくとも98%eeが達成される。
基質の不斉バイオ還元は、次の一般的プロトコールに従って、単離酵素YqjM、OPR1、OPR3およびZymomonas mobilis(アルコール発酵菌)レダクターゼを用いて行った。
NADH/FDH系
Trisバッファー50mM pH7.5 (0.8ml)中の基質(5mM)、酸化型補因子NAD+ (100μM)、ギ酸アンモニウム(20mM)の混合物に、酵素(100〜200μg)を加えてからFDH (10u)を添加し、この反応を30℃(140rpm)で48時間実施した。
Trisバッファー50mM pH7.5 (0.8ml)中の基質(5mM)、酸化型補因子NAD+ (100μM)、グルコース(20mM)の混合物に、酵素(100〜200μg)を加えてから(D)-GDH (10u)を添加し、この反応を30℃(140rpm)で48時間実施した。
Trisバッファー50mM pH7.5 (0.8ml)中の基質(5mM)、酸化型補因子NADP+ (10μM)、グルコース-6-リン酸(20mM)の混合物に、酵素(100〜200μg)を加えてからG6PDH (10u)を添加し、この反応を30℃(140rpm)で48時間実施した。
OPR1のアリコートを、基質2-アセトアミドアクリル酸メチル(5mM)、補基質2-プロパノール(3〜60mM、0.6〜12モル当量)および酸化型補因子NAD+ (100μM)を含むTris-HCl緩衝溶液(0.8ml、50mM、pH7.5)に添加した。ADH-A(約2〜3U)を添加し、この混合物を120rpm、30℃で42時間撹拌した。生成物を酢酸エチル(2×0.5ml)により抽出し、有機相を合わせてNa2SO4で乾燥させ、得られたサンプルをアキラルGCにより分析した。
Claims (9)
- 一般式(1)のα-デヒドロアミノ酸から一般式(3)のアミノ酸を酵素的に調製する方法であって、
R1、R2は、それぞれ独立して、H、C1-C6アルキル、C2-C6アルケニル、場合により置換されてもよい炭素環もしくは複素環式の芳香族もしくは非芳香族基、アルキルアリール基、またはカルボキシル基(-COOR)であり、
R3は、H、ホルミル、アセチル、プロピオニル、ベンジル、ベンジルオキシカルボニル、BOC、またはAllocであり、
Rは、H、C1-C6アルキル、またはアリールである]
式(1)の化合物を、
(i) 配列番号1、2、4、5、6のポリペプチド配列の少なくとも1つを含む、または
(ii) 配列番号1、2、4、5、6と90%以上の配列同一性を示す、機能的に等価なポリペプチド配列を有する、
レダクターゼの存在下で還元することによる上記方法。 - 補因子としてNADPHまたはNADHを用いて前記還元を実施する、請求項1に記載の方法。
- 用いる補因子を酵素的に再生する、請求項2に記載の方法。
- 補因子をグルコースデヒドロゲナーゼ、ギ酸デヒドロゲナーゼまたは第2級アルコールにより再生する、請求項3に記載の方法。
- 前記還元を水性、水性-アルコール性、またはアルコール性の反応媒体中で実施する、請求項1〜4のいずれか1項に記載の方法。
- 前記レダクターゼが固定化された状態で存在する、請求項1〜5のいずれか1項に記載の方法。
- 前記酵素が枯草菌(Bacillus subtilis)およびプチトマト(Lycopersicum esculentum)由来のレダクターゼの中から選択される、請求項1〜6のいずれか1項に記載の方法。
- R1がH、R2がH、R3がアセチルである式(1)の化合物を反応させる、請求項1〜7のいずれか1項に記載の方法。
- 前記反応を0〜45℃の範囲の温度および/または6〜8の範囲のpHで実施する、請求項1〜8のいずれか1項に記載の方法。
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