Pepsin B

Identifiers

Databases

PDB structures

Pepsin B (EC 3.4.23.2, parapepsin I, pig gelatinase) is an enzyme.^[1] This enzyme catalyses the following chemical reaction

Degradation of gelatin, with manor activity on hemoglobin. Specificity for B chain of insulin is more restricted than that of pepsin A

This enzyme is formed from pig pepsinogen B.

References

↑ Ryle, A.P. (1970). "The porcine pepsins and pepsinogens". Methods Enzymol. 19: 316–336. doi:10.1016/0076-6879(70)19023-9.

Proteases: aspartate proteases (EC 3.4.23)

Vertebrate	Pepsin Chymosin Renin Signal peptide peptidase Beta secretase 1 2

Pathogenic	Plasmepsin HIV-1 protease

Plant	Nepenthesin

Cathepsin	D E

Enzymes

Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Catalytically perfect enzyme Coenzyme Cofactor Enzyme catalysis Enzyme kinetics Lineweaver–Burk plot Michaelis–Menten kinetics

Regulation	Allosteric regulation Cooperativity Enzyme inhibitor

Classification	EC number Enzyme superfamily Enzyme family List of enzymes

Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list)

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