COLLB-RO
Roche
Collagenase B
from Clostridium histolyticum
About This Item
Doporučené produkty
biological source
Clostridium histolyticum
Quality Level
sterility
non-sterile
form
lyophilized
packaging
pkg of 100 mg (11088807001)
pkg of 2.5 g (11088831001)
pkg of 500 mg (11088815001)
manufacturer/tradename
Roche
concentration
0.5-2.5 mg/mL
optimum pH
6.0-8.0
application(s)
sample preparation
storage temp.
2-8°C
General description
Specificity
Application
Collagenase B has been used for preparation of cells from mouse aortas and colorectal cancer tissue.
Specifications
Collagenase activity: >0.15U/mg (according to Wünsch) (+25°C, 4-phenyl-azobenzyl-oxycarbonyl-Pro-Leu-Gly-Pro-D-Arg as the substrate)
Contaminating enzyme activities: trypsin, clostripain, and total proteolytic activity
Collagenase B has a normal to high collagenase activity and a higher than average clostripain activity (usually >10U/mg).
Inhibitors:
Collagenase inhibitors: EDTA, EGTA, Cys, His, DTT, 2-mercaptoethanol
Collagenase is not inhibited by serum.
Clostripain inhibitors: TLCK
Trypsin inhibitors: aprotinin, trypsin inhibitor (egg white, soybean), serum
Unit Definition
Frequently, collagenase activities are given in Mandl units (1 μmol leucine liberated from collagen in 5 hours at +37 °C).
Unfortunately, there is no consistent conversion factor between the two units of activity, since the Mandl unit depends, in part, on the concentration of contaminating proteases in the collagenase preparation, an indefinable variable. A purer collagenase preparation would actually give a lower specific activity in Mandl units than a crude preparation. Clostridium preparations typically give conversion factors of approximately 1:1800 (e.g., a particular lot of Clostridium collagenase contained approximately 0.15 Wünsch U/mg and 250 Mandl U/mg).
Preparation Note
Working concentration: 0.5 to 2.5 mg/ml
Storage conditions (working solution): -15 to -25 °C
Roche recommends reconstituting only the amount of lyophilizate needed for immediate use. The reconstituted solution can be stored at -15 to -25 °C for up to one week. Avoid repeated freezing and thawing since activity decreases after reconstitution.
Reconstitution
Other Notes
signalword
Danger
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk_germany
WGK 1
flash_point_f
does not flash
flash_point_c
does not flash
Osvědčení o analýze (COA)
Vyhledejte osvědčení Osvědčení o analýze (COA) zadáním čísla šarže/dávky těchto produktů. Čísla šarže a dávky lze nalézt na štítku produktu za slovy „Lot“ nebo „Batch“.
Již tento produkt vlastníte?
Dokumenty související s produkty, které jste v minulosti zakoupili, byly za účelem usnadnění shromážděny ve vaší Knihovně dokumentů.
Zákazníci si také prohlíželi
Související obsah
Collagenase Guide.Collagenases, enzymes that break down the native collagen that holds animal tissues together, are made by a variety of microorganisms and by many different animal cells.
Náš tým vědeckých pracovníků má zkušenosti ve všech oblastech výzkumu, včetně přírodních věd, materiálových věd, chemické syntézy, chromatografie, analytiky a mnoha dalších..
Obraťte se na technický servis.