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C0888

Sigma-Aldrich

Clostripain from Clostridium histolyticum

≥20 units/mg solid

Synonyme(s) :

Clostridiopeptidase B, Proteinase from Clostridium histolyticum

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About This Item

Numéro CAS:
9028-00-6
Numéro de classification (Commission des enzymes):
3.4.22.8 (BRENDA, IUBMB)
Numéro CE :
232-822-2
Numéro MDL:
MFCD00130814
Code UNSPSC :
12352204
Nomenclature NACRES :
NA.54

Forme

lyophilized powder

Niveau de qualité

100

Activité spécifique

≥20 units/mg solid

Poids mol.

15.4 kDa
 41.7 kDa

Impuretés

salt, essentially free

Température de stockage

2-8°C

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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).

Actions biochimiques/physiologiques

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.

Conditionnement

Bottomless glass bottle. Contents are inside inserted fused cone.

Qualité

Purified, essentially salt-free

Définition de l'unité

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.

Remarque sur l'analyse

The enzyme must be activated for 2-3 hours before use by dissolving in 2.5 mM dithiothreitol containing 1.0 mM calcium acetate.

Inhibiteur

Réf. du produit
Description
Tarif

H6027

Histatin 5, ≥97% (HPLC)

Pictogrammes

Health hazardExclamation mark
GHS08,GHS07

Mention d'avertissement

Danger

Mentions de danger

H315,H319,H334,H335

Classification des risques

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

Certificats d'analyse (COA)

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Chang-Kyu Kim et al.
Journal of biotechnology, 131(3), 346-352 (2007-09-05)
In this study, the clostripain gene was modified and its signal sequence was replaced with that of penicillin G acylase (PGA). The core clostripain protein fused to the PGA signal peptide was also prepared. With regard to the expression of
Ozlem Doğan Ekici et al.
Journal of medicinal chemistry, 47(8), 1889-1892 (2004-04-02)
Aza-peptide Michael acceptors are a new class of irreversible inhibitors that are highly potent and specific for clan CD cysteine proteases. The aza-Asp derivatives were specific for caspases, while aza-Asn derivatives were effective legumain inhibitors. Aza-Lys and aza-Orn derivatives were
Nikolaos E Labrou et al.
European journal of biochemistry, 271(5), 983-992 (2004-03-11)
In this study we investigate the active-site structure and the catalytic mechanism of clostripain by using a combination of three separate techniques: affinity labelling, site-directed mutagenesis and molecular modelling. A benzamidinyl-diazo dichlorotriazine dye (BDD) was shown to act as an
Maria Baranyi et al.
The Journal of dairy research, 70(2), 189-197 (2003-06-13)
Acid-precipitated rabbit 'whole casein' was digested by trypsin, chymotrypsin, pepsin, and clostripain to screen for possible peptides with antibacterial properties. The peptide fragments were separated by reversed-phase chromatography. The collected fractions were pooled and their antibacterial properties tested against Escherichia
Synthesis of neo-peptidoglycans: an unexpected activity of proteases.
Nicole Wehofsky et al.
Angewandte Chemie (International ed. in English), 41(15), 2735-2738 (2002-08-31)
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