C0888
Clostripain from Clostridium histolyticum
≥20 units/mg solid
Synonym(s):
Clostridiopeptidase B, Proteinase from Clostridium histolyticum
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About This Item
CAS Number:
UNSPSC Code:
12352204
NACRES:
NA.54
EC Number:
232-822-2
MDL number:
Specific activity:
≥20 units/mg solid
form
lyophilized powder
specific activity
≥20 units/mg solid
mol wt
15.4 kDa, 41.7 kDa
impurities
salt, essentially free
storage temp.
2-8°C
Quality Level
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Related Categories
Application
Clostripain from Clostridium histolyticum has been used as a proteolytic enzyme in perfusate to detect its effect on tube hematocrit. It has also been used in limited proteolysis of DNA polymerase (gp43) of phage T4 (RB69 gp43).
Biochem/physiol Actions
Clostripain from Clostridium histolyticum is composed of two polypeptide chains, with molecular masses of 41.7 kDa and 15.4 kDa. Clostripain has a highly restricted substrate specificity for Arg-Xaa peptide bonds. Therefore, clostripain has been explored as a potential enzyme for protein sequencing purposes. It has also been studied as a catalyst for condensation of pharmaceutically important peptides containing Arg-Pro bonds.
Packaging
Bottomless glass bottle. Contents are inside inserted fused cone.
Analysis Note
Purified, essentially salt-free
The enzyme must be activated for 2-3 hours before use by dissolving in 2.5 mM dithiothreitol containing 1.0 mM calcium acetate.
Other Notes
One unit will hydrolyze 1.0 μmole of BAEE per min at pH 7.6 at 25 °C in the presence of 2.5 mM DTT.
signalword
Danger
hcodes
Hazard Classifications
Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Regulatory Information
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J S Nishimura et al.
The Journal of biological chemistry, 268(18), 13717-13722 (1993-06-25)
Mutant forms of Escherichia coli succinyl-CoA synthetase, W76F (Trp beta 76 replaced by Phe) (Nishimura, J. S., Mann, C. J., Ybarra, J., Mitchell, T., and Horowitz, P. M. (1990) Biochemistry 29, 862-865), and W43,76,248F (all three Trp replaced by Phe)
The activity of Clostridium histolyticum proteinase on synthetic substrates.
J D OLGE et al.
Archives of biochemistry and biophysics, 42(2), 327-336 (1953-02-01)
Nicholas J Carruthers et al.
European journal of pharmacology, 555(2-3), 106-114 (2006-12-05)
Calcineurin, the Ca2+/calmodulin-dependant serine/threonine phosphatase is the target for the immunosuppressant drugs FK506 and cyclosporine-A. These established calcineurin inhibitors each require an immunophilin protein cofactor. Gossypol, a polyphenol produced by the cotton plant, inhibits calcineurin (IC50=15 microM), in a noncompetitive
Barney Yoo et al.
Journal of the American Chemical Society, 127(49), 17132-17133 (2005-12-08)
We demonstrate that proteases can catalyze the ligation of peptidomimetic oligomers. The enzyme clostripain was used to facilitate the native ligation of N-substituted glycine oligomers, or peptoids. In addition to mediating the efficient condensation of two peptoid fragments, iterative ligation
K Guzik et al.
Cell death and differentiation, 14(1), 171-182 (2006-04-22)
The recognition of phosphatidylserine (PS) on the surface of any apoptotic cell is considered to be a key event for its clearance. We challenge this concept by showing that pretreatment of neutrophils with either host or bacterial protease affects their
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