Mucorpepsin (EC 3.4.23.23, Mucor rennin, Mucor aspartic proteinase, Mucor acid proteinase, Mucor acid protease, Mucor miehei aspartic proteinase, Mucor miehei aspartic protease, Mucor pusillus emporase, Fromase 100, Mucor pusillus rennin, Fromase 46TL, Mucor miehei rennin) is an enzyme .^[1]^[2]^[3]^[4]^[5] This enzyme catalyses the following chemical reaction

Hydrolysis of proteins, favouring hydrophobic residues at P1 and P1'. Clots milk. Does not accept Lys at P1, and hence does not activate trypsinogen

This enzyme is isolated from the zygomycete fungi Mucor pusillus and M. miehei.

References

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^ Arima K, Yu J, Iwasaki S (1970). "Milk-clotting enzyme from Mucor pusillus var. Lindt". Milk-clotting enzyme from Mucor pusillus var. lindt. Methods Enzymol. Vol. 19. pp. 446–459. doi:10.1016/0076-6879(70)19033-1. ISBN 978-0-12-181881-4.

^ Ottesen M, Rickert W (1970). The acid protease of Mucor miehei. Methods Enzymol. Vol. 19. pp. 459–460. doi:10.1016/0076-6879(70)19034-3.

^ Sternberg M (December 1972). "Bond specificity, active site and milk clotting mechanism of the Mucor miehei protease". Biochimica et Biophysica Acta (BBA) - Protein Structure. 285 (2): 383–92. doi:10.1016/0005-2795(72)90324-8. PMID 4573298.

^ Oka T, Ishino K, Tsuzuki H, Morihara K, Arima K (1973). "On the specificity of a rennin-like enzyme from Mucor pusillus". Agric. Biol. Chem. 37 (5): 1177–1184. doi:10.1271/bbb1961.37.1177.

^ Baudys M, Foundling S, Pavlík M, Blundell T, Kostka V (August 1988). "Protein chemical characterization of Mucor pusillus aspartic proteinase. Amino acid sequence homology with the other aspartic proteinases, disulfide bond arrangement and site of carbohydrate attachment". FEBS Letters. 235 (1–2): 271–4. Bibcode:1988FEBSL.235..271B. doi:10.1016/0014-5793(88)81277-8. PMID 3042459.

External links

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Mucorpepsin at the U.S. National Library of Medicine Medical Subject Headings (MeSH)

v t e 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

v t e Enzymes
Activity	Active site Binding site Catalytic triad Oxyanion hole Enzyme promiscuity Diffusion-limited enzyme Cofactor Enzyme catalysis
Regulation	Allosteric regulation Cooperativity Enzyme inhibitor Enzyme activator
Classification	EC number Enzyme superfamily Enzyme family List of enzymes
Kinetics	Enzyme kinetics Eadie–Hofstee diagram Hanes–Woolf plot Lineweaver–Burk plot Michaelis–Menten kinetics
Types	EC1 Oxidoreductases (list) EC2 Transferases (list) EC3 Hydrolases (list) EC4 Lyases (list) EC5 Isomerases (list) EC6 Ligases (list) EC7 Translocases (list)

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