1,4-beta-D-xylan synthase

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In enzymology, a 1,4-beta-D-xylan synthase (EC 2.4.2.24) is an enzyme that catalyzes the chemical reaction

UDP-D-xylose + (1,4-beta-D-xylan)n UDP + (1,4-beta-D-xylan)n⁺1

Thus, the two substrates of this enzyme are UDP-D-xylose and (1,4-beta-D-xylan)n, whereas its two products are UDP and (1,4-beta-D-xylan)n+1.

This enzyme belongs to the family of glycosyltransferases, specifically the pentosyltransferases. The systematic name of this enzyme class is UDP-D-xylose:1,4-beta-D-xylan 4-beta-D-xylosyltransferase. Other names in common use include uridine diphosphoxylose-1,4-beta-xylan xylosyltransferase, 1,4-beta-xylan synthase, xylan synthase, and xylan synthetase. This enzyme participates in starch and sucrose metabolism and nucleotide sugars metabolism.

[edit] References

• IUBMB entry for 2.4.2.24
• BRENDA references for 2.4.2.24 (Recommended.)
• PubMed references for 2.4.2.24
• PubMed Central references for 2.4.2.24
• Google Scholar references for 2.4.2.24
• Bailey RW and Hassid WZ (1966). "Xylan synthesis from uridine-diphosphate-D-xylose by particulate preparations from immature corncobs". Proc. Natl. Acad. Sci. USA 56: 1586–1593. doi:10.1073/pnas.56.5.1586. 

[edit] External links

The CAS registry number for this enzyme class is 37277-73-9.

• IUBMB entry for 2.4.2.24

• KEGG entry for 2.4.2.24

• BRENDA entry for 2.4.2.24

• NiceZyme view of 2.4.2.24

• EC2PDB: PDB structures for 2.4.2.24

• PRIAM entry for 2.4.2.24

• PUMA2 entry for 2.4.2.24

• IntEnz: Integrated Enzyme entry for 2.4.2.24

• MetaCyc entry for 2.4.2.24

• Atomic-resolution structures of enzymes belonging to this class

[edit] Gene Ontology (GO) codes

• EGO entry for GO code 0047517: 1,4-beta-D-xylan synthase

• AMIGO entry for GO code 0047517: 1,4-beta-D-xylan synthase