Starch synthase (maltosyl-transferring) (EC 2.4.99.16, alpha1,4-glucan:maltose-1-P maltosyltransferase, GMPMT) is an enzyme with systematic name alpha-maltose 1-phosphate:(1->4)-alpha-D-glucan 4-alpha-D-maltosyltransferase.[1] This enzyme catalyses the following chemical reaction
Starch synthase (maltosyl-transferring) | |||||||||
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Identifiers | |||||||||
EC no. | 2.4.99.16 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
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- alpha-maltose 1-phosphate + [(1->4)-alpha-D-glucosyl]n phosphate + [(1->4)-alpha-D-glucosyl]n+2
The enzyme from the bacterium Mycobacterium smegmatis is specific for maltose.
References
edit- ^ Elbein AD, Pastuszak I, Tackett AJ, Wilson T, Pan YT (March 2010). "Last step in the conversion of trehalose to glycogen: a mycobacterial enzyme that transfers maltose from maltose 1-phosphate to glycogen". The Journal of Biological Chemistry. 285 (13): 9803–12. doi:10.1074/jbc.M109.033944. PMC 2843229. PMID 20118231.
External links
edit- Starch+synthase+(maltosyl-transferring) at the U.S. National Library of Medicine Medical Subject Headings (MeSH)