Cerevisin

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Cerevisin (EC 3.4.21.48, yeast proteinase B, proteinase yscB, baker's yeast proteinase B, brewer's yeast proteinase, peptidase beta) is an enzyme.^[1]^[2]^[3]^[4] This enzyme catalyses the following chemical reaction

Hydrolysis of proteins with broad specificity, and of Bz-Arg-OEt Ac-Tyr-OEt. Does not hydrolyse peptide amides

This enzyme is isolated from Saccharomyces cerevisiae (baker's yeast).

References

↑ Félix, F. and Brouillet, N. (1966). "Purification et proprietes de deux peptidases de levure de brasserie". Biochim. Biophys. Acta 122: 127–144. doi:10.1016/0926-6593(66)90096-8. PMID 4961236.
↑ Kominami, E., Hoffschulte, H., Leuschel, L., Maier, K. and Holzer, H. (1981). "The substrate specificity of proteinase B from baker’s yeast". Biochim. Biophys. Acta 661: 136–141. doi:10.1016/0005-2744(81)90092-9. PMID 7028121.
↑ Farley, P.C., Shepherd, M.G. and Sullivan, P.A. (1986). "The purification and properties of yeast proteinase B from Candida albicans". Biochem. J. 236: 177–184. PMID 3539100.
↑ Moehle, C.M., Tizard, R., Lemmon, S.K., Smart, J. and Jones, E.W. (1987). "Protease B of the lysosome like vacuole of the yeast Saccharomyces cerevisiae is homologous to the subtilisin family of serine proteases". Mol. Cell. Biol. 7: 4390–4399. PMID 3325823.

External links

Cerevisin at the US National Library of Medicine Medical Subject Headings (MeSH)

Endopeptidases: serine proteases/serine endopeptidases (EC 3.4.21)

Digestive enzymes	Enteropeptidase Trypsin Chymotrypsin Elastase Neutrophil Pancreatic

Coagulation	factors: Thrombin Factor VIIa Factor IXa Factor Xa Factor XIa Factor XIIa Kallikrein PSA KLK1 KLK2 KLK3 KLK4 KLK5 KLK6 KLK7 KLK8 KLK9 KLK10 KLK11 KLK12 KLK13 KLK14 KLK15 fibrinolysis: Plasmin Plasminogen activator Tissue plasminogen activator Urinary plasminogen activator

Complement system	Factor B Factor D Factor I MASP MASP1 MASP2 C3-convertase

Other immune system	Chymase Granzyme Tryptase Proteinase 3/Myeloblastin

Venombin	Ancrod Batroxobin

Other	Acrosin Prolyl endopeptidase Pronase Proprotein convertases 1 2 Prostasin Reelin Subtilisin/Furin Streptokinase S1P Cathepsin A G

Proteins: 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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