CATH Classification

Domain Context

CATH Clusters

Superfamily Acid Proteases
Functional Family Endothiapepsin

Enzyme Information

3.4.23.18
Aspergillopepsin I.
based on mapping to UniProt Q12567
Hydrolysis of proteins with broad specificity. Generally favors hydrophobic residues in P1 and P1', but also accepts Lys in P1, which leads to activation of trypsinogen. Does not clot milk.
-!- Found in a variety of Aspergillus species (imperfect fungi): A.awamori, A.foetidus, A.fumigatus, A.kawachii, A.niger, A.oryzae, A.saitoi, and A.sojae. -!- Belongs to peptidase family A1. -!- Formerly EC 3.4.23.6.

UniProtKB Entries (1)

Q12567
PEPA_ASPPH
Aspergillus phoenicis
Aspergillopepsin-1

PDB Structure

PDB 1IBQ
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structure of aspergillopepsin I from Aspergillus phoenicis: variations of the S1'-S2 subsite in aspartic proteinases.
Cho, S.W., Kim, N., Choi, M.U., Shin, W.
Acta Crystallogr.,Sect.D
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