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P2922 Sigma

Endoproteinase Glu-C from Staphylococcus aureus V8

Type XVII-B, lyophilized powder, 500-1,000 units/mg solid

Synonym: V8 Protease



Related Categories 3.4.x.x Peptidases, 3.x.x.x Hydrolases, Application Index, Biochemicals and Reagents, Endoproteinase Glu-C,
type   Type XVII-B
form   lyophilized powder
purified by   chromatography
shipped in   wet ice
storage temp.   −20°C
Gene Information   Staphylococcus aureus subsp. aureus MW2 ... sspA(1003044)


Unit Definition

One unit will hydrolyze 1 μmole of N-t-Boc-L-glutamic acid α-phenyl ester per min at pH 7.8 at 37 °C. One unit is equivalent to ~0.004 casein digestion unit.


Endoproteinase Glu-C from Staphylococcus aureus strain V8 is a serine protease used for selective cleavage of proteins for amino acid sequence determination or peptide mapping . Product P2922 has been used to linearize cyclic peptides in C. ternatea leaf extract.

Biochem/physiol Actions

Staphylococcus strain V8 protease specifically cleaves peptide bonds on the carboxyl side of aspartic and glutamic acid residues when used in phosphate buffer. When used in ammonium bicarbonate buffer or ammonium acetate buffer cleavage is restricted to the carboxyl side of glutamic acid residues only. The enzyme exhibits maximal activity from pH 4.0 to 7.8. If hemoglobin is used as the substrate, maximal activity is at pH 4.0. The maximal activity is at pH of 7.8 when casein is the substrate.

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Safety & Documentation

Safety Information

Signal word 
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Protocols & Articles


Enzymatic Assay of Protease, Product No. P2922

To standardize a procedure for the enzymatic assay of Protease activity with N-t-Boc-L-glutamic acid α-phenyl ester substrate.
Keywords: Digestions, Enzymology, Extinction coefficient

Related Content

Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

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92210 Timestrip Plus 0 °C
06693 Timestrip Plus -20 °C

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