C8051
Collagenasi
Sigma Blend Type H, ≥1.0 FALGPA units/mg solid
Sinonimo/i:
Clostridiopeptidasi A
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About This Item
Prodotti consigliati
![N-[3-(2-Furyl)acryloyl]-Leu-Gly-Pro-Ala](/deepweb/assets/sigmaaldrich/product/structures/805/876/96b5fb57-71c8-4c6b-b5d2-fafe7374cd85/640/96b5fb57-71c8-4c6b-b5d2-fafe7374cd85.png)
Livello qualitativo
Forma fisica
powder
caseinase activity
≥10 units/mg solid
Attività specifica
≥1.0 FALGPA units/mg solid
PM
68-130 kDa
Temperatura di conservazione
−20°C
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Applicazioni
Collagenase from Clostridium histolyticum has been used:
- to harvest osteosarcoma 143B cells from collagen scaffold
- in tissue digestion of islets and carotid artery
- in the digestion of chorionic villi
- in enzymatic dissociation for ATP-based tumour chemosensitivity assay (ATP-TCA) in solid tumors
Azioni biochim/fisiol
Clostridium histolyticum produces two classes of collagenases. Clostridial collagenases are found to be highly effective than mammalian collagenases. It is capable of cleaving at multiple cleavage sites within the collagen triple helix. It is implicated in the bacterial invasion in gas gangrene.
Effective release of cells from tissue requires the action of both 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. Collagenase treatment can cause some cells to die. Typically, concentrations varying from 0.1 to 5 mg/mL is used for digestion. The duration of reaction varyies from 15 minutes to several hours to yield a satisfactory efficiency of cell dissociation, without causing too much cell death. Krebs Ringer buffer with calcium and BSA is preffered and Zn2+ is required for activity. This enzyme is tested for the release of hepatocytes at approximately 1 mg/mL conc., in a total volume of 100 mL for each rat liver.
La collagenasi è attivata da quattro grammi atomo di calcio per mole di enzima. È inibita da etilen-glicol-bis(beta-amminoetil etere) - acido N, N, N′,N′-tetraacetico, beta-mercaptoetanolo, glutatione, acido tioglicolico e 8-idrossichinolina.
Definizione di unità
Una unità di digestione del collagene (CDU) libera peptidi da collagene proveniente da tendine d′Achille bovino equivalente in colore ninidrina a 1,0 μmole di leucina in 5 ore a pH 7,4 a 37 °C in presenza di ioni calcio. Una unità di idrolisi FALGPA idrolizza 1,0 μmole di furilacriloil-Leu-Gly-Pro-Ala per minuto a 25 °C. Una unità di proteasi neutra idrolizza caseina e produce colore equivalente a 1,0 μmole di tirosina per 5 ore a pH 7,5 a 37 °C. Una unità di clostripaina idrolizza 1,0 μmole of BAEE per minuto a pH 7,6 a 25 °C in presenza di DTT.
Substrato
N° Catalogo
Descrizione
Determinazione del prezzo
Avvertenze
Danger
Indicazioni di pericolo
Consigli di prudenza
Classi di pericolo
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
Organi bersaglio
Respiratory system
Codice della classe di stoccaggio
11 - Combustible Solids
Classe di pericolosità dell'acqua (WGK)
WGK 1
Punto d’infiammabilità (°F)
Not applicable
Punto d’infiammabilità (°C)
Not applicable
Dispositivi di protezione individuale
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Certificati d'analisi (COA)
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Protocolli
To measure collagenase activity, N-(3-[2-Furyl]acryloyl)-Leu-Gly-Pro-Ala is used in a continuous spectrophotometric rate determination at 345 nm. Collagenase hydrolyzes collagen peptide bonds.
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