JP2017141258A - 陰イオン交換クロマトグラフィによるタンパク質の精製方法 - Google Patents
陰イオン交換クロマトグラフィによるタンパク質の精製方法 Download PDFInfo
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- JP2017141258A JP2017141258A JP2017055835A JP2017055835A JP2017141258A JP 2017141258 A JP2017141258 A JP 2017141258A JP 2017055835 A JP2017055835 A JP 2017055835A JP 2017055835 A JP2017055835 A JP 2017055835A JP 2017141258 A JP2017141258 A JP 2017141258A
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- Prior art keywords
- anion exchange
- divalent cation
- binding protein
- buffer
- protein
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/14—Extraction; Separation; Purification
- C07K1/145—Extraction; Separation; Purification by extraction or solubilisation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K1/00—General methods for the preparation of peptides, i.e. processes for the organic chemical preparation of peptides or proteins of any length
- C07K1/14—Extraction; Separation; Purification
- C07K1/16—Extraction; Separation; Purification by chromatography
- C07K1/18—Ion-exchange chromatography
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
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Abstract
【解決手段】第1陰イオン交換樹脂物質に、二価カチオンの非存在下でローディング緩衝液中の二価カチオン結合タンパク質をロードし、所望により二価カチオンの非存在下、ロードした陰イオン交換樹脂物質を洗浄用緩衝液で洗浄し、二価カチオン結合タンパク質を対アニオンを含む溶離剤で溶出して二価カチオン結合タンパク質含有溶出液を得、得られた溶出液に少なくとも1の二価カチオンを添加してpHを増加させ、第2陰イオン交換樹脂物質に前記溶出液をロードし、二価カチオン結合タンパク質を含むフロースルーを回収する、二価カチオン結合タンパク質の精製するキット。
【選択図】なし
Description
本発明は、以下の工程を含む二価カチオン結合タンパク質の精製方法に関する:
(a)第1陰イオン交換樹脂物質に、二価カチオンの非存在下でローディング緩衝液中の二価カチオン結合タンパク質をロードし、所望により二価カチオンの非存在下、ロードした陰イオン交換樹脂物質を洗浄用緩衝液で洗浄し、
(b)二価カチオン結合タンパク質を対アニオンを含む溶離剤で溶出して二価カチオン結合タンパク質含有溶出液を得、
(c)工程(b)で得た溶出液に少なくとも1の二価カチオンを添加してpHを増加させ、
(d)第2陰イオン交換樹脂物質に工程(c)で得た添加溶出液をロードし、
(e)二価カチオン結合タンパク質を含むフロースルーを回収する。
2.工程(c)において該添加溶出液のpHを少なくとも0.5pH単位増加させる項目1記載の方法。
3.工程(b)の溶離剤の溶離剤が、工程(a)のローディング緩衝液、および洗浄工程を行う場合は工程(a)の洗浄用緩衝液の伝導度より高い伝導度を有し、工程(c)の該添加溶出液が工程(b)の溶離剤の伝導度より低い伝導度を有する項目1または2記載の方法。
4.工程(c)の少なくとも1の二価カチオンが、Ca2+、Be2+、Ba2+、Mg2+、Mn2+、Sr2+、Zn2+、Co2+、Ni2+、およびCu2+、またはその組み合わせからなる群から選ばれる項目1〜3のいずれかに記載の方法。
5.第1および第2陰イオン交換樹脂物質が、それぞれ独立してジエチルアミノエタン(DEAE)、ジメチルアミノエタン(DMAE)、トリメチルアミノエチル(TMAE)、ポリエチレンイミン(PEI)、第4級アミノアルキル、第4級アミノエタン(QAE)、および第4級アンモニウム(Q)からなる群から選ばれる正荷電基を有する項目1〜4のいずれかに記載の方法。
6.第1および第2陰イオン交換樹脂物質が、リガンドとして、それぞれ独立してアミノヘキシル、ベンズアミジン、リジン、およびアルギニンからなる群から選ばれる1級アミンを保持する項目1〜5のいずれかに記載の方法。
7.二価カチオン結合タンパク質が、カルシウム結合タンパク質である項目1〜6のいずれかに記載の方法。
8.二価カチオン結合タンパク質がビタミンK依存性タンパク質である項目1〜7のいずれかに記載の方法。
9.二価カチオン結合タンパク質が、第II因子、第VII因子、第IX因子、第X因子、プロテインC、プロテインS、アネキシン、およびカルモジュリンからなる群から選ばれ、特に好ましくは第IX因子、第VII因子、およびアネキシンVからなる群から選ばれる項目1〜8のいずれかに記載の方法。
該二価カチオン結合タンパク質は、天然供給源、例えば血漿由来であるか、組換えにより生成することができる。
10.ローディング工程(a)中のローディング緩衝液のpH、および/または所望の洗浄工程(a)に用いる洗浄用緩衝液のpHが<pH7.4、好ましくはpH5.5〜pH7.0、より好ましくはpH6.0〜pH7.0、さらにより好ましくはpH6.5〜pH7.0である項目1〜9のいずれかに記載の方法。
11.項目1〜10のいずれかに記載の方法により得ることができる精製された二価カチオン結合タンパク質。
12.項目1〜10のいずれかに記載の方法を実施する手段を含むキット。
(発明の詳細な説明)
(a)第1陰イオン交換樹脂物質に二価カチオンの非存在下またはその低濃度下で二価カチオン結合タンパク質をロードし、所望により二価カチオンの非存在下、ロードした陰イオン交換樹脂物質を洗浄用緩衝液で洗浄し、
(b)二価カチオン結合タンパク質を対アニオン含有溶離剤で溶出して二価カチオン結合タンパク質含有溶出液を得、
(c)工程(b)で得た溶出液に少なくとも1の二価カチオンを添加してpHを増加させ、
(d)第2陰イオン交換樹脂物質に工程(c)で得た添加溶出液をロードし、
(e)二価カチオン結合タンパク質を含むフロースルーを回収する。
a)第1陰イオン交換カラムに、出発物質(すなわち、好ましい態様では細胞培養物質)をロードする。これは夾雑物の多い出発物質である。第2陰イオン交換カラムに、すでにある程度精製された物質(溶出(および添加)工程後に得られた物質である)をロードする。
b)第1陰イオン交換工程は、二価カチオンの非存在下で実施するが、第2陰イオン交換工程を実施する場合は、ロード物質に二価カチオンを添加している。
c)第2陰イオン交換における該ロードの伝導度は、好ましい態様において、第1陰イオン交換カラムの溶出工程の伝導度より低くなるように選択する。
d)次に、第1陰イオン交換工程を生成物結合モードで実施し、第2陰イオン交換工程を生成物非結合モードで実施する。
トリス:(pH=8,06±1,0の緩衝剤)
MES:(pH=6,2±1,0の緩衝剤)
HEPES:(pH7,7±1,0の緩衝剤)
MOPS:(pH=7,3±1,0の緩衝剤)
トリシン:(pH=8,3±1,0の緩衝剤)
ヒスチジン:(pH=7,6±1,0の緩衝剤)
Gly-Gly:(pH=7,4±1,0の緩衝剤)
Bis-トリス:(pH=6,35±1,0の緩衝剤)
ACES:(pH=7,0±1,0の緩衝剤)(N-(2-アセトアミド)-2-アミノエタンスルホン酸)
ADA:(pH=7,0±1,0の緩衝剤)(N-(2-アセトアミド)-イミド2酢酸)
洗浄用緩衝液の伝導度を調節するのに適した塩、例えば濃度100〜200mMで存在しうるNaClなども含みうる。塩濃度の絶対値は、精製する二価カチオン結合タンパク質に依存し、最適な純度を得るために二価カチオン結合タンパク質がより低いまたは高い塩濃度を必要とするかを決定することは当業者の知識内である。本発明の方法に適用することができる溶離剤は、例えば20mM MESおよび350mM NaClを含み、pH6.0でありうる。
実施例1:組換え第IX因子(rFIX)の精製
該樹脂を最初に平衡化用緩衝液(20mM MES、2mM EDTA、pH=6.0)で平衡化し、次いで調整済みrFIX含有ロードを樹脂に適用した。洗浄用緩衝液(20mM MES、2mM EDTA、180mM NaCl、pH=6.0)で洗浄後、生成物を溶出用緩衝液(20mM MES、350mM NaCl、pH=6.0)で溶出した。生成物の収量と不純物の除去率のまとめをイオン交換捕捉工程の典型的成績について表1に示す。
Q-Sepharose Fast Flowを用いる第1精製工程から得られる溶出液プールに約8mM Ca2+を添加し、トリス緩衝液で希釈して伝導度約12 mS/cm(室温)とし、pHを7.6に調整した。樹脂を最初に平衡化用緩衝液(20mMトリス、10mM CaCl2、90mM NaCl、pH=7.8)で平衡化し、調整済み生成物含有溶液をカラムにポンプで流した。クロマトグラフィ条件は、大部分のCHO宿主細胞タンパク質不純物および不活性生成物種は陰イオン交換樹脂と結合するが、生成物は結合しないように設定した。高活性および高精製生成物は、Q-Sepharose Fast Flowを用いる第2陰イオン交換工程のカラムフロースルー分画中に含まれる。結合した不純物は、1M NaClで樹脂から除去される。生成物の収量と不純物の除去率のまとめを表2に示す。
実施例2:Poros Qを用いる2段階イオン交換法を用いるFVIIの精製
1) Poros Qを用いる第1精製(イオン交換法、pH=6,0)
2)Poros Qによる第2精製(カルシウムろ過法、pH=>7.6、室温(RT))。
要約
FVII:C: FVII色素生成アッセイ。
実施例3:Q-Sepharose Fast Flowを用いる2段階イオン交換法によるFVIIの精製
1) Q-Sepharose Fast Flowを用いる第1精製(イオン交換法、pH=6,0)
2)Poros Qによる第2精製(カルシウムろ過法、pH=>7.6、室温(RT))。
要約実施例3
FVII:C: FVII色素生成アッセイ。
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102677194B1 (ko) * | 2023-12-22 | 2024-06-21 | 주식회사 위드텍 | Ri 폐기물에 포함된 복수 개 킬레이트제의 동시 분석 방법 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2748180B1 (en) | 2018-08-15 |
| JP6117219B2 (ja) | 2017-04-19 |
| JP6788533B2 (ja) | 2020-11-25 |
| WO2013053888A1 (en) | 2013-04-18 |
| AU2012322949A1 (en) | 2013-05-16 |
| EP2748180A1 (en) | 2014-07-02 |
| US9701710B2 (en) | 2017-07-11 |
| ES2700933T3 (es) | 2019-02-20 |
| US20180111961A1 (en) | 2018-04-26 |
| US10723761B2 (en) | 2020-07-28 |
| AU2012322949B2 (en) | 2015-07-02 |
| JP2014528966A (ja) | 2014-10-30 |
| US20140302592A1 (en) | 2014-10-09 |
| HK1198653A1 (en) | 2015-05-22 |
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