Cellulose synthase (GDP-forming)

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In enzymology, a cellulose synthase (GDP-forming) (EC 2.4.1.29) is an enzyme that catalyzes the chemical reaction

GDP-glucose + (1,4-beta-D-glucosyl)n GDP + (1,4-beta-D-glucosyl)n+1

Thus, the two substrates of this enzyme are GDP-glucose and (1,4-beta-D-glucosyl)n, whereas its two products are GDP and (1,4-beta-D-glucosyl)n+1.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is GDP-glucose:1,4-beta-D-glucan 4-beta-D-glucosyltransferase. Other names in common use include cellulose synthase (guanosine diphosphate-forming), cellulose synthetase, guanosine diphosphoglucose-1,4-beta-glucan glucosyltransferase, and guanosine diphosphoglucose-cellulose glucosyltransferase. This enzyme participates in starch and sucrose metabolism.

References

  • IUBMB entry for 2.4.1.29
  • BRENDA references for 2.4.1.29 (Recommended.)
  • PubMed references for 2.4.1.29
  • PubMed Central references for 2.4.1.29
  • Google Scholar references for 2.4.1.29
  • Chambers J, Elbein AD (1970). "Biosynthesis of glucans in mung bean seedlings. Formation of beta-(1,4)-glucans from GDP-glucose and beta-(1,3)-glucans from UDP-glucose". Arch. Biochem. Biophys. 138: 620&ndash, 31. PMID 4317490.
  • Flowers HM, Batra KK, Kemp J, Hassid WZ (1969). "Biosynthesis of cellulose in vitro from guanosine diphosphate D-glucose with enzymic preparations from Phaseolus aureus and Lupinus albus". J. Biol. Chem. 244: 4969&ndash, 74. PMID 5824571.

External links

The CAS registry number for this enzyme class is 9027-18-3.

Gene Ontology (GO) codes


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