CATH Classification

Domain Context

CATH Clusters

Superfamily HybD-like
Functional Family Hydrogenase 3 maturation endopeptidase HyCI

Enzyme Information

3.4.23.51
HycI peptidase.
based on mapping to UniProt P0AEV9
This enzyme specifically removes a 32-amino acid peptide from the C-terminus of the precursor of the large subunit of E.coli hydrogenase 3 by cleavage at the C-terminal side of Arg-537.
-!- The reaction requires nickel to be bound to the precursor of the large subunit of hydrogenase 3. -!- The endopeptidase uses the metal in the large subunit of [NiFe]- hydrogenases as a recognition motif. -!- Belongs to peptidase family A31.

UniProtKB Entries (1)

P0AEV9
HYCI_ECOLI
Escherichia coli K-12
Hydrogenase 3 maturation protease

PDB Structure

PDB 2I8L
External Links
Method SOLUTION NMR
Organism Escherichia
Primary Citation
Solution structure and backbone dynamics of an endopeptidase HycI from Escherichia coli: implications for mechanism of the [NiFe] hydrogenase maturation
Yang, F., Hu, W., Xu, H., Li, C., Xia, B., Jin, C.
J.Biol.Chem.