4-alpha-glucanotransferase

In enzymology, a 4-alpha-glucanotransferase (EC number|2.4.1.25) is an enzyme that catalyzes a chemical reaction that transfers a segment of a 1,4-alpha-D-glucan to a new position in an acceptor carbohydrate, which may be glucose or a 1,4-alpha-D-glucan.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is 1,4-alpha-D-glucan:1,4-alpha-D-glucan 4-alpha-D-glycosyltransferase. Other names in common use include disproportionating enzyme, dextrin glycosyltransferase, D-enzyme, debranching enzyme maltodextrin glycosyltransferase, amylomaltase, and dextrin transglycosylase. This enzyme participates in starch and sucrose metabolism.

tructural studies

As of late 2007, 14 structures have been solved for this class of enzymes, with PDB accession codes PDB link|1CWY, PDB link|1ESW, PDB link|1FP8, PDB link|1FP9, PDB link|1K1W, PDB link|1K1X, PDB link|1K1Y, PDB link|1LWH, PDB link|1LWJ, PDB link|1TZ7, PDB link|1X1N, PDB link|2OWC, PDB link|2OWW, and PDB link|2OWX.

References

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External links

::"The CAS registry number for this enzyme class is CAS registry|9032-09-1."

Gene Ontology (GO) codes