コラゲナーゼ Clostridium histolyticum由来

Collagenase from Clostridium histolyticum, or Clostridiopeptidase A, has been used in a study to assess contact dermatitis with clostridiopeptidase A contained in Noruxol ointment. Clostridiopeptidase A has also been used in a study to investigate the early and successful enzymatıc debridement via collagenase application to pinna in a preterm neonate.

Collagenase from Clostridium histolyticum has been used in determining the degradation rate of collagen biomaterials. It may also be used to determine the enzymatic degradation and enzymatic resistance by the liberated L-leucine measurements.

The enzyme has been used in the isolation of mast cells from adult mice. This study generated a large number of connective tissue-type mast cells by the culture of murine fetal skin cells. The product has also been used in the in vitro biodegradation study of Bombyx mori silk fibroin fibers and films, by exposing them to the enzyme for varied time periods.

コラゲナーゼは、モル酵素あたり 4 グラム原子カルシウムによって活性化されます。 本製品は、エチレングリコール-ビス(β-アミノエチルエーテル) - N, N, N′,N′-四酢酸、β-メルカプトエタノール、グルタチオン、チオグリコール酸、および 8-ヒドロキシキノリンによって阻害されます。

Effective release of cells from tissue requires the action of collagenase enzymes and the neutral protease. Collagenase is activated by four gram atom calcium (Ca²⁺) per mole enzyme. The culture filtrate is thought to contain at least 7 different proteases ranging in molecular weight from 68-130 kDa. The pH optimum is 6.3-8.8. The enzyme is typically used to digest the connective components in tissue samples to liberate individual cells. Ethylene glycol-bis(β-aminoethyl ether)-N,N,N′,N′-tetraacetic acid (EGTA)4; β-mercaptoethanol; glutathione, reduced; thioglycolic acid, sodium; and 2,2′-dipyridyl; 8-hydroxyquinoline are known to inhibit the enzyme activity.

1 コラーゲン消化単位（CDU）は、ウシアキレス腱由来コラーゲンからペプチドを遊離し、カルシウムイオン存在下、pH 7.4、37°C、5 時間のニンヒドリン呈色における、1.0 umol のロイシンに相当します。1 FALGPA 加水分解単位は、25°Cで、1 分間あたりに、1.0 umol の furylacryloyl-Leu-Gly-Pro-Ala を加水分解します。1 中性プロテアーゼ単位は、pH 7.5、37°Cでカゼインを加水分解し、5 時間あたり1.0 umol のチロシンに相当する色を生成します。1 クロストリパイン単位は、DTT の存在下、pH 7.6、25°Cで、1 分間あたり　1.0 umol　の BAEE を加水分解します。