Glucomannan 4-beta-mannosyltransferase

glucomannan 4-beta-mannosyltransferase
Identifiers
EC number	2.4.1.32
CAS number	37257-30-0
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 / EGO
Search PMC articles PubMed articles NCBI proteins

In enzymology, a glucomannan 4-beta-mannosyltransferase (EC 2.4.1.32) is an enzyme that catalyzes the chemical reaction

GDP-mannose + (glucomannan)_n $\rightleftharpoons$ GDP + (glucomannan)_n+1

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

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is GDPmannose:glucomannan 1,4-beta-D-mannosyltransferase. Other names in common use include GDP-man-beta-mannan manosyltransferase, and glucomannan-synthase.

References

• Elbein AD (1969). "Biosynthesis of a cell wall glucomannan in mung bean seedlings". J. Biol. Chem. 244 (6): 1608–16. PMID 4304230.