_EC 3.4.23.3 Gastricsin. 2 PDB entries  
EC 3.-.-.- Hydrolases. [20,839 PDB entries]
EC 3.4.-.- Acting on peptide bonds (peptide hydrolases). [6,819 PDB entries]
EC 3.4.23.- Aspartic endopeptidases. [1,460 PDB entries]
EC 3.4.23.3 Gastricsin. [2 PDB entries]    
1avf

Reaction: More restricted specificity than pepsin A, but shows preferential cleavage at Tyr-|-Xaa bonds. High activity on hemoglobin.
Other name(s): Pepsin C.
Comments: 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.
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are 2 PDB entries in enzyme class E.C.3.4.23.3

  PDB code Protein
1avf
Activation intermediate 2 of human gastricsin from human stomach
Source: Homo sapiens. Human. Organism_taxid: 9606. Organ: stomach. Tissue: gastric mucosa. Tissue: gastric mucosa
Chains: P, A, Q, J (21 residues)
1htr
Crystal and molecular structures of human progastricsin at 1 angstroms resolution
Source: Homo sapiens. Human. Organism_taxid: 9606. Organ: stomach. Tissue: gastric mucosa cell: chief cells. Tissue: gastric mucosa cell: chief cells
Chains: P, B (43 residues)