CATH Classification

Domain Context

CATH Clusters

Superfamily Aldolase class I
Functional Family Proline 2-methylase for pyrrolysine biosynthesis

Enzyme Information

5.4.99.58
Methylornithine synthase.
based on mapping to UniProt Q46E78
L-lysine = (3R)-3-methyl-D-ornithine.
-!- The enzyme is a member of the superfamily of S-adenosyl-L-methionine- dependent radical (radical AdoMet) enzymes. -!- Binds a [4Fe-4S] cluster that is coordinated by 3 cysteines and an exchangeable S-adenosyl-L-methionine molecule. -!- The reaction is part of the biosynthesis pathway of pyrrolysine, a naturally occurring amino acid found in some archaeal methyltransferases.

UniProtKB Entries (1)

Q46E78
PYLB_METBF
Methanosarcina barkeri str. Fusaro
3-methylornithine synthase

PDB Structure

PDB 3T7V
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structure of methylornithine synthase (PylB): insights into the pyrrolysine biosynthesis.
Quitterer, F., List, A., Eisenreich, W., Bacher, A., Groll, M.
Angew.Chem.Int.Ed.Engl.