Glycoside hydrolases (O-Glycosyl hydrolases) EC 3.2.1. are a widespread group of enzymes that hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety. A classification system for glycosyl hydrolases, based on sequence similarity, has led to the definition of numerous different families.[1][2][3] This classification is available on the CAZy (CArbohydrate-Active EnZymes) web site.[4] Because the fold of proteins is better conserved than their sequences, some of the families can be grouped in 'clans'. As of October 2011, CAZy includes 128 families of glycosyl hydrolases and 14 clans.

References

  1. Henrissat B, Callebaut I, Mornon JP, Fabrega S, Lehn P, Davies G (1995). "Conserved catalytic machinery and the prediction of a common fold for several families of glycosyl hydrolases". Proc. Natl. Acad. Sci. U.S.A. 92 (15): 7090–7094. Bibcode:1995PNAS...92.7090H. doi:10.1073/pnas.92.15.7090. PMC 41477. PMID 7624375.
  2. Henrissat B, Davies G (1995). "Structures and mechanisms of glycosyl hydrolases". Structure. 3 (9): 853–859. doi:10.1016/S0969-2126(01)00220-9. PMID 8535779.
  3. Henrissat B, Bairoch A (June 1996). "Updating the sequence-based classification of glycosyl hydrolases". Biochem. J. 316 (2): 695–6. doi:10.1042/bj3160695. PMC 1217404. PMID 8687420.
  4. Cantarel BL, Coutinho PM, Rancurel C, Bernard T, Lombard V, Henrissat B (January 2009). "The Carbohydrate-Active EnZymes database (CAZy): an expert resource for Glycogenomics". Nucleic Acids Res. 37 (Database issue): D233–8. doi:10.1093/nar/gkn663. PMC 2686590. PMID 18838391.
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