JP2005206542A - 新規なポリペプチド及びその製造方法 - Google Patents
新規なポリペプチド及びその製造方法 Download PDFInfo
- Publication number
- JP2005206542A JP2005206542A JP2004016031A JP2004016031A JP2005206542A JP 2005206542 A JP2005206542 A JP 2005206542A JP 2004016031 A JP2004016031 A JP 2004016031A JP 2004016031 A JP2004016031 A JP 2004016031A JP 2005206542 A JP2005206542 A JP 2005206542A
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- Prior art keywords
- polypeptide
- peptide
- amino acid
- formula
- acid sequence
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Abstract
【解決手段】 本発明の新規なポリペプチドは、下記式(1)で表されるアミノ酸配列を有するペプチドユニットと、下記式(2)で表されるアミノ酸配列を有するペプチドユニットとを含有する。
-Pro-X-Gly- (1)
-Y-Z-Gly- (2)
(式中、X及びZは同一又は異なってPro又はHypを示し、Yはカルボキシル基を有するアミノ酸残基(Asp、Glu、Glaなど)を示す)
前記ペプチドユニット(1)とペプチドユニット(2)との割合(モル比)は、(1)/(2)=99/1〜1/99程度である。前記ポリペプチドには、アパタイト類を担持してもよい。
【選択図】 なし
Description
[-(OC-(CH2)m-CO)q-(Z)r-]b (2)
[-HN-R-NH-]c (3)
(式中、mは1〜18の整数、p及びqは同一又は異なって0又は1、YはProまたはHypを表し、nは1〜20の整数を表す。Zは1〜10個のアミノ酸残基からなるペプチド鎖を表し、rは1〜20の整数を表し、Rは直鎖状又は分岐鎖状アルキレン基を表す。aとbとの割合はa/b=100/0〜30/70(モル比)であり、p=1及びq=0であるときc=a、p=0及びq=1であるときc=bであり、p=1及びq=1であるときc=a+bであり、p=0及びq=0であるときc=0である。)
前記特許文献9に記載されているように、ヒツジの振戦病やウシの海綿状脳症の原因物質がプリオンと呼ばれる伝染性蛋白質であり、この伝染性タンパク質がヒトのクロイツフェルドーヤコブ病伝染の原因の一つと言われている。プリオンは、蛋白質であり、通常の滅菌、殺菌方法では失活し難く、しかも種を越えて感染することが指摘されている(「Nature Review, Vol.2」(非特許文献4)、 pp.118-126, 2001)。
-Y-Z-Gly- (2)
(式中、X及びZは同一又は異なってPro又はHypを示し、Yはカルボキシル基を有するアミノ酸残基(例えば、α−アミノ酸残基など)を示す)
前記式(2)において、YはAsp又はγ位にカルボキシル基を有していてもよいGluであってもよい。
Arg :L−アルギニン残基
Asn :L−アスパラギン残基
Asp :L−アスパラギン酸残基
Cys :L−システイン残基
Gln :L−グルタミン残基
Glu :L−グルタミン酸残基
Gly :グリシン残基
His :L−ヒスチジン残基
Hyp :L−ヒドロキシプロリン残基
Ile :L−イソロイシン残基
Leu :L−ロイシン残基
Lys :L−リジン残基
Met :L−メチオニン残基
Phe :L−フェニルアラニン残基
Pro :L−プロリン残基
Sar :サルコシン残基
Ser :L−セリン残基
Thr :L−トレオニン残基
Trp :L−トリプトファン残基
Tyr :L−チロシン残基
Val :L−バリン残基
また、本明細書においては、常法に従って、N末端のアミノ酸残基を左側に位置させ、C末端のアミノ酸残基を右側に位置させて、ペプチド鎖のアミノ酸配列を記述する。
本発明の新規なポリペプチドは、-Pro-X-Gly-(1)で表されるアミノ酸配列を有するペプチドユニットを含むことが必要である。-Pro-X-Gly-で表される配列は、3重らせん構造の安定性に寄与するため、この配列の割合が少ないと3重らせん構造の安定性が減少する。さらに、このユニットは、3重らせん構造の安定性の点から、ポリペプチド中において、-(Pro-X-Gly)n-で表される繰返し構造(オリゴ又はポリペプチドユニット構造)を形成してもよい。この配列の繰返し数nは、例えば、1〜5000、好ましくは2〜3000程度である。Xは、ProまたはHypのいずれであってもよいが、3重らせん構造の安定性からHypであるのがより好ましい。なお、Hypは、通常、4Hyp(例えば、trans−4−ヒドロキシ−L−プロリン)残基である。
本発明の新規なポリペプチドは、アミノ酸やペプチドフラグメント(又はセグメント)を縮合反応に供する慣用の方法により得ることができ、最終的にペプチドユニット(1)とペプチドユニット(2)とがポリペプチド中に含まれている限り特に制限されず、例えば、構成アミノ酸の縮合反応や、ペプチドフラグメントとアミノ酸との縮合反応を利用して得てもよいが、予め、式(1)及び/又は(2)で表されるアミノ酸配列を有するペプチドを調製し、このペプチドを含むペプチド成分を縮合する方法により得るのが好ましい。
(1)Na+ 142mM、K+ 5mM、Ca2+ 2.5mM、Mg2+ 1.5mM、C1- 148.8mM、HCO3 - 4.2mM、HPO4 2- 1mM、SO4 2- 0.5mMを含み、トリス緩衝剤でpHを7.4に調整した水溶液、
(2)Na+ 213mM、K+ 7.5mM、Ca2+ 3.8mM、Mg2+ 2.3mM、Cl- 223.3mM、HCO3 - 6.3mM、HPO4 2- 1.5mM、SO4 2- 0.75mMを含み、トリス緩衝剤でpHを7.4に調整した水溶液。
式:H-(Pro-Hyp-Gly)4-Glu-Hyp-Gly-(Pro-Hyp-Gly)5-OH(配列番号:1)で示されるペプチド鎖を、ペプチド自動合成装置を用いて固相合成法により合成した。すなわち、4−(Nα−9−(フルオレニルメトキシカルボニル)−グリシン)−オキシメチル−フェノキシ−メチル基を0.65mmol/g(樹脂)の割合で含むスチレン−ジビニルベンゼン共重合体[スチレンとジビニルベンゼンとの構成モル比=99:1]で形成された粒状樹脂[米国アプライド・バイオシステムズ社製、HMPグリシン]0.1mmolを用い、目的とするペプチドのカルボキシル末端からアミノ末端に向かって順次対応するアミノ酸を結合させた。結合反応において、アミノ酸として、米国アプライド・バイオシステムズ社製のNα−9−(フルオレニルメトキシカルボニル)−L−プロリン[Fmocプロリン]、Nα−9−(フルオレニルメトキシカルボニル)−グリシン[Fmocグリシン]、Nα−9−(フルオレニルメトキシカルボニル)−γ−t−ブチルオキシ−L−グルタミン酸[Fmocグルタミン酸]、バッケム社製のNα−9−(フルオレニルメトキシカルボニル)−O−t−ブチル−L−ヒドロキシプロリン[Fmocヒドロキシプロリン]を、各結合ステップについてそれぞれ1mmolずつ用いた。
1.2mg(0.00045mmol)の式:H-(Pro-Hyp-Gly)10-OH(配列番号:2)で示されるペプチド((株)ペプチド研究所)と、1.2mg(0.00045mmol)の実施例1で得られた式:H-(Pro-Hyp-Gly)4-Glu-Hyp-Gly-(Pro-Hyp-Gly)5-OH(配列番号:1)で示されるペプチドを0.25mLの10mMリン酸塩緩衝液(pH 7.4)に溶解し、0.12mg(0.0009mmol)の1−ヒドロキシベンゾトリアゾール、15.7mg(0.082mmol)の1−エチル−3−(3−ジメチルアミノプロピル)−カルボジイミド塩酸塩を添加して、さらに20℃で2日間撹拌を続けた。得られた反応溶液を水で10倍に希釈し、水に対して3日間透析して、縮合剤などの試薬と未反応モノマーを除去し、本発明のポリペプチドを得た。ペプチドユニット(1)と(2)の割合((1)/(2))は、95/5(モル比)であった。
2.4mg(0.0009mmol)の式:H-(Pro-Hyp-Gly)10-OH(配列番号:2)で示されるペプチド((株)ペプチド研究所)を1mLのジメチルスルホキシドに懸濁し、室温で撹拌した。この混合液に、0.12mg(0.0009mmol)のジイソプロピルエチルアミン、0.12mg(0.0009mmol)の1−ヒドロキシベンゾトリアゾール、0.34mg(0.0018mmol)の1−エチル−3−(3−ジメチルアミノプロピル)−カルボジイミド塩酸塩を添加して、さらに20℃で2日間撹拌を続けた。得られた反応溶液を水で3倍に希釈し、水に対して3日間透析して、縮合剤などの試薬と未反応モノマーを除去し、ポリペプチドを得た。ペプチドユニット(1)と(2)の割合((1)/(2))は、100/0(モル比)であった。
実施例1〜2で得られたポリペプチド、および比較例1で得られたポリペプチドをそれぞれ約0.5mg/mlの濃度に調節した水溶液1容を、Na+ 213mM、K+ 7.5mM、Ca2+ 3.8mM、Mg2+ 2.3mM、Cl- 223.3mM、HCO3 - 6.3mM、HPO4 2- 1.5mM、SO4 2- 0.75mMを含み、トリス緩衝剤でpHを7.4に調節した水溶液2容と混合した後(最終濃度、Na+ 142mM、K+ 5mM、Ca2+ 2.5mM、Mg2+ 1.5mM、C1- 148.8mM、HCO3 - 4.2mM、HPO4 2- 1mM、SO4 2- 0.5mM)に、36.5℃で1日間浸漬した。この間、随時少量の溶液を採取し、アマシャム・バイオサイエンス社製PD-10カラムに通して塩を除去した後、リンタングステン酸でネガティブ染色し、透過型電子顕微鏡(日立、H-7600型)で観察した。
Claims (13)
- 下記式(1)で表されるアミノ酸配列を有するペプチドユニットと、下記式(2)で表されるアミノ酸配列を有するペプチドユニットとを含む新規なポリペプチド。
-Pro-X-Gly- (1)
-Y-Z-Gly- (2)
(式中、X及びZは同一又は異なってPro又はHypを示し、Yはカルボキシル基を有するアミノ酸残基を示す) - 式(2)において、YがAsp又はγ位にカルボキシル基を有していてもよいGluである請求項1記載のポリペプチド。
- ペプチドユニット(1)とペプチドユニット(2)との割合(モル比)が、(1)/(2)=99/1〜1/99である請求項1記載のポリペプチド。
- 円二色性スペクトルにおいて、波長220〜230nmに正のコットン効果を示し、波長195〜205nmに負のコットン効果を示す請求項1記載のポリペプチド。
- ポリペプチドの少なくとも一部が3重らせん構造を形成可能である請求項1記載のポリペプチド。
- 分子量5×103〜500×104の範囲にピークを示す請求項1記載のポリペプチド。
- コラーゲン組織を形成可能である請求項1記載のポリペプチド。
- アパタイト類が担持されている請求項1記載のポリペプチド。
- 請求項1記載の式(1)に対応するアミノ酸又はペプチドフラグメントと、式(2)に対応するアミノ酸又はペプチドフラグメントとを少なくとも含むアミノ酸成分又はペプチドフラグメント成分を縮合させて、請求項1記載のポリペプチドを製造する方法。
- 請求項1記載のアミノ酸配列を有するポリペプチドを製造する方法であって、(a)請求項1記載の式(1)及び(2)で表される双方のアミノ酸配列を有するペプチドを少なくとも含むペプチド成分、又は(b)前記式(1)で表されるアミノ酸配列を有するペプチドと前記式(2)で表されるアミノ酸配列を有するペプチドとを少なくとも含むペプチド成分を縮合させる方法。
- 請求項1記載のポリペプチドと、カルシウムイオン及びリン酸イオンを含む水溶液とを接触させ、アパタイト類を前記ポリペプチドに沈着させ、前記アパタイト類が担持されたポリペプチドを製造する方法。
- アパタイト類がヒドロキシアパタイトである請求項11記載の製造方法。
- 請求項11又は12記載の製造方法によって得られるアパタイト類が担持されたポリペプチド。
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WO2008075589A1 (ja) * | 2006-12-21 | 2008-06-26 | Chisso Corporation | 血小板凝集惹起物質 |
WO2008114577A2 (ja) * | 2007-02-26 | 2008-09-25 | National University Corporation NARA Institute of Science and Technology | 抗菌性ペプチド |
WO2010088469A2 (en) | 2009-01-30 | 2010-08-05 | Ethicon, Inc. | Collagen-related peptides and uses thereof and hemostatic foam substrates |
US8076294B2 (en) | 2007-08-01 | 2011-12-13 | Advanced Technologies And Regenerative Medicine, Llc. | Collagen-related peptides and uses thereof |
JP5339534B2 (ja) * | 2007-09-13 | 2013-11-13 | 国立大学法人 奈良先端科学技術大学院大学 | 新規なポリペプチドおよびその製造方法 |
JP2014023785A (ja) * | 2012-07-27 | 2014-02-06 | Jvc Kenwood Corp | 診断支援装置および診断支援方法 |
CN114209880A (zh) * | 2021-11-25 | 2022-03-22 | 浙江大学 | 一种有序矿化多肽的生物复合材料的制备方法及其产品和应用 |
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2004
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WO2008075589A1 (ja) * | 2006-12-21 | 2008-06-26 | Chisso Corporation | 血小板凝集惹起物質 |
WO2008114577A2 (ja) * | 2007-02-26 | 2008-09-25 | National University Corporation NARA Institute of Science and Technology | 抗菌性ペプチド |
WO2008114577A3 (ja) * | 2007-02-26 | 2008-11-27 | Nat Univ Corp Nara Inst | 抗菌性ペプチド |
JP5354206B2 (ja) * | 2007-02-26 | 2013-11-27 | 国立大学法人 奈良先端科学技術大学院大学 | 抗菌性ペプチド |
US8076294B2 (en) | 2007-08-01 | 2011-12-13 | Advanced Technologies And Regenerative Medicine, Llc. | Collagen-related peptides and uses thereof |
JP5339534B2 (ja) * | 2007-09-13 | 2013-11-13 | 国立大学法人 奈良先端科学技術大学院大学 | 新規なポリペプチドおよびその製造方法 |
WO2010088469A2 (en) | 2009-01-30 | 2010-08-05 | Ethicon, Inc. | Collagen-related peptides and uses thereof and hemostatic foam substrates |
JP2014023785A (ja) * | 2012-07-27 | 2014-02-06 | Jvc Kenwood Corp | 診断支援装置および診断支援方法 |
CN114209880A (zh) * | 2021-11-25 | 2022-03-22 | 浙江大学 | 一种有序矿化多肽的生物复合材料的制备方法及其产品和应用 |
CN114209880B (zh) * | 2021-11-25 | 2022-11-08 | 浙江大学 | 一种有序矿化多肽的生物复合材料的制备方法及其产品和应用 |
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