Maltose synthase

From Wikipedia, the free encyclopedia

In enzymology, a maltose synthase (EC 2.4.1.139) is an enzyme that catalyzes the chemical reaction

2 alpha-D-glucose 1-phosphate + H₂O maltose + 2 phosphate

Thus, the two substrates of this enzyme are alpha-D-glucose 1-phosphate and H₂O, whereas its two products are maltose and phosphate.

This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is alpha-D-glucose-1-phosphate:alpha-D-glucose-1-phosphate 4-alpha-D-glucosyltransferase (dephosphorylating).

[edit] References

• IUBMB entry for 2.4.1.139
• BRENDA references for 2.4.1.139 (Recommended.)
• PubMed references for 2.4.1.139
• PubMed Central references for 2.4.1.139
• Google Scholar references for 2.4.1.139
• Schilling N (1982). "Characterization of maltose biosynthesis from alpha-D-glucose-1-phosphate in Spinacia oleracea L". Planta 154: 87–93. doi:10.1007/BF00385502. 

[edit] External links

The CAS registry number for this enzyme class is 81669-74-1.

• IUBMB entry for 2.4.1.139

• KEGG entry for 2.4.1.139

• BRENDA entry for 2.4.1.139

• NiceZyme view of 2.4.1.139

• EC2PDB: PDB structures for 2.4.1.139

• PRIAM entry for 2.4.1.139

• PUMA2 entry for 2.4.1.139

• IntEnz: Integrated Enzyme entry for 2.4.1.139

• MetaCyc entry for 2.4.1.139

• Atomic-resolution structures of enzymes belonging to this class

[edit] Gene Ontology (GO) codes

• EGO entry for GO code 0050420: maltose synthase

• AMIGO entry for GO code 0050420: maltose synthase