CATH Classification

Domain Context

CATH Clusters

Superfamily 6.10.140.60
Functional Family

Enzyme Information

3.4.23.3
Gastricsin.
based on mapping to UniProt P20142
More restricted specificity than pepsin A, but shows preferential cleavage at Tyr-|-Xaa bonds. High activity on hemoglobin.
-!- Formed from progastricsin, apparently in the gastric juice of most vertebrates. -!- In addition to the fundus, progastricsin is also secreted in antrum and proximal duodenum. -!- Seminal plasma contains a zymogen that is immunologically identical with progastricsin. -!- Belongs to peptidase family A1. -!- Formerly EC 3.4.4.22.

UniProtKB Entries (1)

P20142
PEPC_HUMAN
Homo sapiens
Gastricsin

PDB Structure

PDB 1HTR
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal and molecular structures of human progastricsin at 1.62 A resolution.
Moore, S.A., Sielecki, A.R., Chernaia, M.M., Tarasova, N.I., James, M.N.
J.Mol.Biol.