Starch_synthase_(maltosyl-transferring)

Starch synthase (maltosyl-transferring)

Starch synthase (maltosyl-transferring)

Class of enzymes

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

alpha-maltose 1-phosphate + [(1->4)-alpha-D-glucosyl]n phosphate + [(1->4)-alpha-D-glucosyl]n+2
Quick Facts Identifiers, EC no. ...

The enzyme from the bacterium Mycobacterium smegmatis is specific for maltose.

References

  1. [1]
    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.
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