CATH Classification

Domain Context

CATH Clusters

Superfamily Aldolase class I
Functional Family

Enzyme Information

4.1.99.22
GTP 3',8-cyclase.
based on mapping to UniProt P69848
GTP + S-adenosyl-L-methionine + reduced electron acceptor = (8S)-3',8- cyclo-7,8-dihydroguanosine 5'-triphosphate + 5'-deoxyadenosine + L-methionine + oxidized electron acceptor.
-!- The enzyme catalyzes an early step in the biosynthesis of the molybdenum cofactor (MoCo). -!- The enzyme belongs to the superfamily of radical S-adenosyl-L- methionine (radical SAM) enzymes. -!- Formerly EC 4.1.99.18.

UniProtKB Entries (1)

P69848
MOAA_STAA8
Staphylococcus aureus subsp. aureus NCTC 8325
GTP 3',8-cyclase

PDB Structure

PDB 2FB3
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Binding of 5'-GTP to the C-terminal FeS cluster of the radical S-adenosylmethionine enzyme MoaA provides insights into its mechanism
Haenzelmann, P., Schindelin, H.
Proc.Natl.Acad.Sci.USA
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