CATH Classification

Domain Context

CATH Clusters

Superfamily Metalloenzyme, LuxS/M16 peptidase-like
Functional Family Protease 3

Enzyme Information

3.4.24.55
Pitrilysin.
based on mapping to UniProt P05458
Preferential cleavage of 16-Tyr-|-Leu-17 and 25-Phe-|-Tyr-26 bonds of oxidized insulin B chain. Also acts on other substrates of Mw less than 7 kDa such as insulin and glucagon.
-!- From the periplasmic space of Escherichia coli. -!- Inhibited by EDTA and 1,10-phenanthroline; not thiol dependent. -!- Belongs to peptidase family M16. -!- Formerly EC 3.4.99.44.

UniProtKB Entries (1)

P05458
PTRA_ECOLI
Escherichia coli K-12
Protease 3

PDB Structure

PDB 1Q2L
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Crystal Structure of pitrilysin, the prototype of insulin-degrading enzymes
Maskos, K., Jozic, D., Fernandez-Catalan, C.
To be Published