| 词条 | Glycoside hydrolase family 57 |
| 释义 |
| Symbol = Glyco_hydro_57 | Name = Glycosyl hydrolase family 57 | image = | width = | caption = | Pfam = PF03065 | Pfam_clan = CL0158 | InterPro = | SMART = | PROSITE = | MEROPS = | SCOP = 1k1x | TCDB = | OPM family = | OPM protein = | CAZy = GH57 | CDD = }} In molecular biology, glycoside hydrolase family 57 is a family of glycoside hydrolases. Glycoside hydrolases {{EC number|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 web site,[4][5] and also discussed at CAZypedia, an online encyclopedia of carbohydrate active enzymes.[6][7]Glycoside hydrolase family 57 CAZY GH_57 comprises enzymes with several known activities; alpha-amylase ({{EC number|3.2.1.1}}), 4-alpha-glucanotransferase ({{EC number|2.4.1.25}}), α-galactosidase ({{EC number|3.2.1.22}}); amylopullulanase ({{EC number|3.2.1.41}}); branching enzyme ({{EC number|2.4.1.18}}). It includes a thermostable alpha-amylase with a broad substrate specificity from the archaebacterium Pyrococcus furiosus.[8] External links
References1. ^{{cite journal |vauthors=Henrissat B, Callebaut I, Mornon JP, Fabrega S, Lehn P, Davies G |title=Conserved catalytic machinery and the prediction of a common fold for several families of glycosyl hydrolases |journal=Proc. Natl. Acad. Sci. U.S.A. |volume=92 |issue=15 |pages=7090–7094 |year=1995 |pmid=7624375 |doi=10.1073/pnas.92.15.7090 |pmc=41477}} {{Sugar hydrolases}}{{Enzymes}}{{Portal bar|Molecular and Cellular Biology|border=no}}2. ^{{cite journal |vauthors=Henrissat B, Davies G |title=Structures and mechanisms of glycosyl hydrolases |journal=Structure |volume=3 |issue=9 |pages=853–859 |year=1995 |pmid=8535779 |doi=10.1016/S0969-2126(01)00220-9}} 3. ^Bairoch, A. "Classification of glycosyl hydrolase families and index of glycosyl hydrolase entries in SWISS-PROT". 1999. 4. ^{{Cite web|url=http://www.cazy.org/|title=Home|last=|first=|date=|website=CAZy.org|language=en|archive-url=|archive-date=|dead-url=|access-date=2018-03-06}} 5. ^{{Cite journal|last=Lombard|first=Vincent|last2=Golaconda Ramulu|first2=Hemalatha|last3=Drula|first3=Elodie|last4=Coutinho|first4=Pedro M.|last5=Henrissat|first5=Bernard|date=2014-01-01|title=The carbohydrate-active enzymes database (CAZy) in 2013|url=https://academic.oup.com/nar/article/42/D1/D490/1057423|journal=Nucleic Acids Research|language=en|volume=42|issue=D1|pages=D490–D495|doi=10.1093/nar/gkt1178|pmid=24270786|pmc=3965031|issn=0305-1048}} 6. ^{{Cite web|url=http://www.cazypedia.org/index.php/Glycoside_Hydrolase_Family_57|title=Glycoside Hydrolase Family 57|last=|first=|date=|website=CAZypedia.org|language=en|archive-url=|archive-date=|dead-url=|access-date=2018-03-06}} 7. ^{{Cite journal|last=CAZypedia Consortium|date=2018-12-01|title=Ten years of CAZypedia: a living encyclopedia of carbohydrate-active enzymes|journal=Glycobiology|volume=28|issue=1|pages=3–8|doi=10.1093/glycob/cwx089|issn=1460-2423|pmid=29040563}} 8. ^{{cite journal |vauthors=Laderman KA, Davis BR, Krutzsch HC, Lewis MS, Griko YV, Privalov PL, etal | title=The purification and characterization of an extremely thermostable alpha-amylase from the hyperthermophilic archaebacterium Pyrococcus furiosus. | journal=J Biol Chem | year= 1993 | volume= 268 | issue= 32 | pages= 24394–401 | pmid=8226989 | doi= | pmc= | url= }} 3 : EC 3.2.1|GH family|Protein domains |
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