JP5804329B2 - 糖蛋白質の分析法 - Google Patents
糖蛋白質の分析法 Download PDFInfo
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- JP5804329B2 JP5804329B2 JP2012138207A JP2012138207A JP5804329B2 JP 5804329 B2 JP5804329 B2 JP 5804329B2 JP 2012138207 A JP2012138207 A JP 2012138207A JP 2012138207 A JP2012138207 A JP 2012138207A JP 5804329 B2 JP5804329 B2 JP 5804329B2
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- cellulose membrane
- glycoprotein
- glycopeptide
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- ethanol
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/32—Bonded phase chromatography
- B01D15/325—Reversed phase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/34—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/34—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase
- C12Q1/37—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase involving peptidase or proteinase
-
- 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
- G01N33/68—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing involving proteins, peptides or amino acids
- G01N33/6803—General methods of protein analysis not limited to specific proteins or families of proteins
- G01N33/6842—Proteomic analysis of subsets of protein mixtures with reduced complexity, e.g. membrane proteins, phosphoproteins, organelle proteins
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/50—Conditioning of the sorbent material or stationary liquid
- G01N30/52—Physical parameters
- G01N2030/524—Physical parameters structural properties
- G01N2030/527—Physical parameters structural properties sorbent material in form of a membrane
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
- G01N2030/8809—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample
- G01N2030/8813—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample biological materials
- G01N2030/8831—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample biological materials involving peptides or proteins
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- G—PHYSICS
- G01—MEASURING; TESTING
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- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/90—Enzymes; Proenzymes
- G01N2333/914—Hydrolases (3)
- G01N2333/924—Hydrolases (3) acting on glycosyl compounds (3.2)
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- G—PHYSICS
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- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/90—Enzymes; Proenzymes
- G01N2333/914—Hydrolases (3)
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2400/00—Assays, e.g. immunoassays or enzyme assays, involving carbohydrates
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2440/00—Post-translational modifications [PTMs] in chemical analysis of biological material
- G01N2440/38—Post-translational modifications [PTMs] in chemical analysis of biological material addition of carbohydrates, e.g. glycosylation, glycation
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Biophysics (AREA)
- Wood Science & Technology (AREA)
- Immunology (AREA)
- Zoology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Analytical Chemistry (AREA)
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- Urology & Nephrology (AREA)
- General Engineering & Computer Science (AREA)
- Genetics & Genomics (AREA)
- Bioinformatics & Computational Biology (AREA)
- Biomedical Technology (AREA)
- Cell Biology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
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Description
(1)糖蛋白質を分析する方法であって,糖蛋白質をペプチド断片に分解するステップと,該ペプチド断片を含有する溶液をセルロース膜に通過させて,糖ペプチド断片を該セルロース膜に結合させるステップと,該セルロース膜に結合させた該糖ペプチド断片を,該セルロース膜から溶出させるステップとを含む,方法。
(2)該分解が,蛋白質分解酵素を用いて行われるものである,(1)の方法。
(3)該糖蛋白質が,リソソーム酵素,エリスロポエチン,卵胞刺激ホルモン,甲状腺刺激ホルモン,GM−CSF,G−CSF,M−CSF,抗体からなる群から選択されるものである,(1)又は(2)の方法。
(4)該リソソーム酵素が,イズロン酸2−スルファターゼ,α−ガラクトシダーゼA,酸性スフィンゴミエリナーゼ,α−L−イズロニダーゼ,N−アセチルガラクトサミン−4−スルファターゼ,グルコセレブロシダーゼ(グルコシルセラミダーゼ),リソソーム酸性リパーゼ,酸性α−グルコシダーゼからなる群から選択されるものである,(3)の方法。
(5)該セルロース膜から溶出からさせた該糖ペプチド断片を,逆相クロマトグラフィーに付し,得られたクロマトグラム上のピークに相当する画分を分取するステップと,分取された該画分に含まれる該糖ペプチド断片について,アミノ酸配列を決定するするステップとを更に含むものである,(1)〜(4)の方法。
組換え体ヒトイズロン酸−2−スルファターゼ(rhl2S)の精製品を,公知の手法を用いて準備した(米国特許公報5798239)。0.1mgのrhl2Sを,50μLの蛋白質溶解液(66.8gのグアニジン塩酸塩,6.1gのトリスヒドロキシメチルアミノメタン及び0.372gのエチレンジアミン四酢酸二ナトリウムを水に溶かし,1N塩酸でpH8.5に調整した後,水を加えて100mLとしたもの)に溶解させた後,4μLの還元化溶液(10mgのジチオスレイトールを50μLの蛋白質溶解液に溶かしたもの)を添加して振り混ぜ,室温で30分間静置した。次いで,4μLのブロッキング溶液(25mgのヨード酢酸を60μLの1N水酸化ナトリウムに溶かしたもの)を添加して振り混ぜ,遮光下,室温で30分間静置した。次いで,反応物をゲルろ過カラムクロマトフィーに付して,rhl2Sを含む画分を分取した。このときゲルろ過カラムクロマトフィーは,純水で平衡化させたSephadex G−25 superfine(カラム径5mm,カラム長150mm,GEヘルスケア)に反応物を付し,室温で流速1mL/分で水を流して,紫外吸光光度計で波長215nmの吸光度をモニターしながら行った。分取したrhl2Sを含む画分を減圧乾固し,65μLの純水で溶解した後,5μLの1mol/L重炭酸アンモニウム水溶液を加えて振り混ぜた。次いで,10μLのトリプシン溶液(25μgのトリプシンを50mLの1mmol/L塩酸に溶かしたもの)を加えて振り混ぜ,2〜8℃で9時間静置して反応させた。トリプシン反応後,溶液を95℃で5分間加熱してトリプシンを失活させ,これをトリプシン消化物とした。
上記のトリプシン消化物を二分し,その一方に5μLのグリコシダーゼ試液(ロシュ・ダイアグノスティックス製)を振り混ぜ,2〜8℃で3時間静置した。次いで溶液95℃で5分間加熱してグリコシダーゼを失活させた。もう一方のトリプシン消化物は,グリコシダーゼ未処理とした。
グリコシダーゼ未処理のrhl2Sのトリプシン消化物を濃縮乾固し,100μLの蒸留水で溶解した後,100μLのエタノールと400μLのブタノールを順次加えて振り混ぜて,試料溶液とした。5mL容量のシリンジ(テルモシリンジ針無し5mL SS−05SZ)に水を5mL吸い取り,これにセルロース膜(スパルタン30,ワットマン社)を取り付けて,シリンジのピストンをゆっくりと押し下げて圧を加え,セルロース膜に水を通した。次いで,同様にして,エタノール:水=1:2(V/V)の混合液(溶出用液)5mL,次いでブタノール:エタノール:水=4:1:1(V/V)の混合液(平衡化液)5mLをセルロース膜に通して,セルロース膜を平衡化させた。次いで,同様にして試料溶液をセルロース膜に通し,通液を回収した(通液1)。次いで,5mLの平衡化液をセルロース膜に通し,通液を回収した(通液2)。次いで5mLの溶出用液をセルロース膜に通し,溶出液を回収した。通液1と2を合わせて通液とした。
上記の操作で得られた溶出液及び通液を減圧乾固した後,100μLの純水に溶解してサンプル溶液とし,これを逆相クロマトグラフィーに30μL付して分析した。逆相クロマトグラフィーは,逆相カラム(Vydac 218TP54,内径4.6mm,長さ250mm,粒径5μm,Grace Vydac社)を取り付けた高速液体クロマトグラフ装置(島津HPLCシステムLC−20A)を用いて行った。移動相Aを0.1%トリフルオロ酢酸水溶液,移動相Bを0.1%トリフルオロ酢酸−70%アセトニトリル水溶液とし,移動相Aと移動相Bを〔移動相A:移動相B=98:2(V/V)〕の比率で混ぜた混合液で逆相カラムを平衡化させた後,サンプル溶液をそれぞれ付した。46分間かけて移動相Aと移動相Bの移動相における移動相Bの比率を2%から60%まで直線的に上昇させ,更に,7分間かけて移動相における移動相Bの比率を99%にまで直線的に上昇させ,続いて移動相Bの比率を99%とした移動相を12分間流した。このとき,移動相の流速を0.5mL/分,カラム温度を50℃に設定し,カラム出口からの流路に蛍光検出器を設置し,215nmの吸光度を記録してクロマトグラムを作成した。
またグルコシダーゼ処理したトリプシン消化物と,グルコシダーゼ未処理のトリプシン消化物とを,セルロース膜に通過させることなく,そのままサンプル溶液とし,これを逆相クロマトグラフィーに10μL付して上記と同様にしてそれぞれ分析した。
通液と溶出液を逆相クロマトグラフィーに付したときのそれぞれのクロマトグラムを比較したところ,両者で得られるピークの位置が異なり,セルロース膜によって,糖鎖を有さないペプチド断片が通液に,糖ペプチド断片が溶出液に分取され,糖の有無によってペプチド断片が分離されたことが示唆された(図1)。
Claims (6)
- 糖蛋白質を分析する方法であって,糖蛋白質をペプチド断片に分解するステップと,該ペプチド断片を含有する溶液をセルロース膜に通過させて,糖ペプチド断片を該セルロース膜に結合させるステップと,該セルロース膜に結合させた該糖ペプチド断片を,該セルロース膜から溶出させるステップと,該セルロース膜から溶出させた該糖ペプチド断片を,逆相クロマトグラフィーに付し,得られたクロマトグラム上のピークに相当する画分を分取するステップと,分取された該画分に含まれる該糖ペプチド断片について,アミノ酸配列を決定するステップとを含む,方法。
- 該分解が,蛋白質分解酵素を用いて行われるものである,請求項1の方法。
- 該糖蛋白質が,リソソーム酵素,エリスロポエチン,卵胞刺激ホルモン,甲状腺刺激ホルモン,GM−CSF,G−CSF,M−CSF,抗体からなる群から選択されるものである,請求項1又は2の方法。
- 該リソソーム酵素が,イズロン酸2−スルファターゼ,α−ガラクトシダーゼA,酸性スフィンゴミエリナーゼ,α−L−イズロニダーゼ,N−アセチルガラクトサミン−4−スルファターゼ,グルコセレブロシダーゼ(グルコシルセラミダーゼ),リソソーム酸性リパーゼ,酸性α−グルコシダーゼからなる群から選択されるものである,請求項3の方法。
- 該糖ペプチド断片の該セルロース膜からの該溶出が,エタノールと水の混合液をセルロース膜に通過させることにより行われるものである,請求項1乃至4のいずれかの方法。
- 該混合液におけるエタノールと水の比率が,エタノール:水=1:1.5〜4(V/V)であるものである,請求項5の方法。
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