Glycoside hydrolase family 57
| Glycosyl hydrolase family 57 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| Symbol | Glyco_hydro_57 | ||||||||
| Pfam | PF03065 | ||||||||
| Pfam clan | CL0158 | ||||||||
| SCOP | 1k1x | ||||||||
| SUPERFAMILY | 1k1x | ||||||||
| CAZy | GH57 | ||||||||
| |||||||||
In molecular biology, glycoside hydrolase family 57 is a family of glycoside hydrolases.
Glycoside 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 glycoside hydrolases, based on sequence similarity, has led to the definition of >100 different families.[1][2][3] This classification is available on the CAZy(http://www.cazy.org/GH1.html) web site,[4] and also discussed at CAZypedia, an online encyclopedia of carbohydrate active enzymes.[5]
Glycoside hydrolase family 57 CAZY GH_57 comprises enzymes with several known activities; alpha-amylase (EC 3.2.1.1), 4-alpha-glucanotransferase (EC 2.4.1.25), α-galactosidase (EC 3.2.1.22); amylopullulanase (EC 3.2.1.41); branching enzyme (EC 2.4.1.18). It includes a thermostable alpha-amylase with a broad substrate specificity from the archaebacterium Pyrococcus furiosus.[6]
References
- ↑ 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. doi:10.1073/pnas.92.15.7090. PMC 41477
. PMID 7624375. - ↑ 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.
- ↑ Bairoch, A. "Classification of glycosyl hydrolase families and index of glycosyl hydrolase entries in SWISS-PROT". 1999.
- ↑ Henrissat, B. and Coutinho P.M. "Carbohydrate-Active Enzymes server". 1999.
- ↑ CAZypedia, an online encyclopedia of carbohydrate-active enzymes.
- ↑ Laderman KA, Davis BR, Krutzsch HC, Lewis MS, Griko YV, Privalov PL, et al. (1993). "The purification and characterization of an extremely thermostable alpha-amylase from the hyperthermophilic archaebacterium Pyrococcus furiosus.". J Biol Chem. 268 (32): 24394–401. PMID 8226989.