View source for Sucrose—1,6-alpha-glucan 3(6)-alpha-glucosyltransferase

{{Short description|Class of enzymes}}
{{infobox enzyme
| Name       = sucrose-1,6-alpha-glucan 3(6)-alpha-glucosyltransferase
| EC_number  = 2.4.1.125
| CAS_number = 81725-87-3
| GO_code    = 0047217
| image      =
| width      = 
| caption    =  
}}
In [[enzymology]], a '''sucrose-1,6-alpha-glucan 3(6)-alpha-glucosyltransferase''' ({{EC number|2.4.1.125}}) is an [[enzyme]] that [[catalysis|catalyzes]] the [[chemical reaction]]

:sucrose + (1,6-alpha-D-glucosyl)n <math>\rightleftharpoons</math> D-fructose + (1,6-alpha-D-glucosyl)n<sup>+</sup>1

Thus, the two [[substrate (biochemistry)|substrates]] of this enzyme are [[sucrose]] and [[(1,6-alpha-D-glucosyl)n]], whereas its two [[product (chemistry)|products]] are [[D-fructose]] and [[(1,6-alpha-D-glucosyl)n+1]].

This enzyme belongs to the family of [[glycosyltransferase]]s, specifically the hexosyltransferases.  The [[List of enzymes|systematic name]] of this enzyme class is '''sucrose:1,6-alpha-D-glucan 3(6)-alpha-D-glucosyltransferase'''. Other names in common use include '''water-soluble-glucan synthase''', '''GTF-S''', '''sucrose-1,6-alpha-glucan 3(6)-alpha-glucosyltransferase''', '''sucrose:1,6-alpha-D-glucan 3-alpha- and 6-alpha-glucosyltransferase''', '''sucrose:1,6-, 1,3-alpha-D-glucan 3-alpha- and''', and '''6-alpha-D-glucosyltransferase'''.

==References==
{{reflist|1}}
* {{cite journal | vauthors = Mukasa H, Shimamura A, Tsumori H | year = 1982 | title = Purification and characterization of basic glucosyltransferase from Streptococcus mutans serotype c | journal = Biochim. Biophys. Acta  | volume = 719 | pages = 81&ndash;9  | pmid = 6216919 | issue = 1 | doi=10.1016/0304-4165(82)90310-5}}
* {{cite journal | vauthors = Shimamura A, Tsumori H, Mukasa H | year = 1982 | title = Purification and properties of Streptococcus mutans extracellular glucosyltransferase | journal = Biochim. Biophys. Acta  | volume = 702 | pages = 72&ndash;80  | pmid = 6461359 | issue = 1 | doi=10.1016/0167-4838(82)90028-0}}
* {{cite journal | vauthors = Tsumori H, Shimamura A, Mukasa H | year = 1985 | title = Purification and properties of extracellular glucosyltransferase synthesizing 1,6-, 1,3-alpha-D-glucan from Streptococcus mutans serotype a | journal = J. Gen. Microbiol.  | volume = 131 | pages = 3347&ndash;53  | pmid = 2937877 | issue = 12 | doi=10.1099/00221287-131-12-3347| doi-access = free }}

{{Glycosyltransferases}}
{{Enzymes}}
{{Portal bar|Biology|border=no}}

{{DEFAULTSORT:Sucrose-1, 6-alpha-glucan 3(6)-alpha-glucosyltransferase}}
[[Category:EC 2.4.1]]
[[Category:Enzymes of unknown structure]]


{{2.4-enzyme-stub}}