The Enzyme Database

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EC 3.2.1.199     
Accepted name: sulfoquinovosidase
Reaction: a 6-sulfo-α-D-quinovosyl diacylglycerol + H2O = 6-sulfo-α-D-quinovose + a 1,2-diacylglycerol
Glossary: quinovose = 6-deoxy-D-glucopyranose
Other name(s): yihQ (gene name); 6-sulfo-α-D-quinovosyl diacylglycerol 6-sulfo-D-quinovohydrolase
Systematic name: 6-sulfo-α-D-quinovosyl diacylglycerol 6-sulfo-D-quinovohydrolase (configuration-retaining)
Comments: The enzyme, characterized from the bacteria Escherichia coli and Pseudomonas putida, hydrolyses terminal non-reducing α-sulfoquinovoside residues in α-sulfoquinovosyl diacylglycerides and α-sulfoquinovosyl glycerol using a retaining mechanism. The enzyme belongs to the glycosyl hydrolase GH31 family.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
References:
1.  Shibuya, I. and Benson, A. A. Hydrolysis of α-sulphoquinovosides by β-galactosidase. Nature 192 (1961) 1186–1187. [DOI]
2.  Speciale, G., Jin, Y., Davies, G.J., Williams, S.J. and Goddard-Borger, E.D. YihQ is a sulfoquinovosidase that cleaves sulfoquinovosyl diacylglyceride sulfolipids. Nat. Chem. Biol. 12 (2016) 215–217. [DOI] [PMID: 26878550]
[EC 3.2.1.199 created 2016]
 
 


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