Phosphomannan mannosephosphotransferase

In enzymology, a phosphomannan mannosephosphotransferase (EC 2.7.8.9) is an enzyme that catalyzes the chemical reaction

GDP-mannose + (phosphomannan)n ${\displaystyle \rightleftharpoons }$ GMP + (phosphomannan)n⁺1

phosphomannan mannosephosphotransferase
Identifiers
EC no.	2.7.8.9
CAS no.	37278-31-2
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / QuickGO
Search PMC articles PubMed articles NCBI proteins

Thus, the two substrates of this enzyme are GDP-mannose and (phosphomannan)n, whereas its two products are GMP and (phosphomannan)n+1.

This enzyme belongs to the family of transferases, specifically those transferring non-standard substituted phosphate groups. The systematic name of this enzyme class is GDP-mannose:phosphomannan mannose phosphotransferase.