Cyclic pyranopterin monophosphate synthase

Cyclic pyranopterin monophosphate synthase (EC 4.1.99.18, MOCS1A, MoaA, MoaC, molybdenum cofactor biosynthesis protein 1) is an enzyme with systematic name GTP 8,9-lyase (cyclic pyranopterin monophosphate-forming).^{[1][2][3][4][5][6][7]} This enzyme catalyses the following chemical reaction

GTP ${\displaystyle \rightleftharpoons }$ cyclic pyranopterin monophosphate + diphosphate

Cyclic pyranopterin monophosphate synthase
Identifiers
EC no.	4.1.99.18
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

This enzyme catalyses an early step in the biosynthesis of molybdopterin.