CATH Classification

Domain Context

CATH Clusters

Superfamily Acid Proteases
Functional Family Cathepsin E

Enzyme Information

3.4.23.4
Chymosin.
based on mapping to UniProt P00794
Broad specificity similar to that of pepsin A. Clots milk by cleavage of a single 104-Ser-Phe-|-Met-Ala-107 bond in kappa-chain of casein.
-!- Neonatal gastric enzyme with high milk clotting and weak general proteolytic activity, formed from prochymosin. -!- Found among mammals with postnatal uptake of immunoglobins. -!- Belongs to peptidase family A1. -!- Formerly EC 3.4.4.3.

UniProtKB Entries (1)

P00794
CHYM_BOVIN
Bos taurus
Chymosin

PDB Structure

PDB 4CMS
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
X-ray analyses of aspartic proteinases. IV. Structure and refinement at 2.2 A resolution of bovine chymosin.
Newman, M., Safro, M., Frazao, C., Khan, G., Zdanov, A., Tickle, I.J., Blundell, T.L., Andreeva, N.
J.Mol.Biol.
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