KEGG   ENZYME: 2.4.1.9Help
Entry
EC 2.4.1.9                  Enzyme                                 

Name
inulosucrase;
sucrose 1-fructosyltransferase;
sucrose:2,1-beta-D-fructan 1-beta-D-fructosyltransferase
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
sucrose:(2->1)-beta-D-fructan 1-beta-D-fructosyltransferase
Reaction(IUBMB)
sucrose + [(2->1)-beta-D-fructosyl]n = glucose + [(2->1)-beta-D-fructosyl]n+1 [RN:R04194 R06059]
Reaction(KEGG)
Substrate
sucrose [CPD:C00089];
[(2->1)-beta-D-fructosyl]n
Product
glucose [CPD:C00031];
[(2->1)-beta-D-fructosyl]n+1
Comment
Converts sucrose into inulin and D-glucose. Some other sugars can act as D-fructosyl acceptors.
History
EC 2.4.1.9 created 1961
Reference
1  [PMID:13260192]
  Authors
BHATIA IS, SATYANARAYANA MN, SRINIVASAN M.
  Title
Transfructosidase from Agave vera cruz Mill.
  Journal
Biochem. J. 61 (1955) 171-4.
Reference
2  [PMID:14935737]
  Authors
DEDONDER R.
  Title
[The glucides of the Jerusalem artichoke. III. Synthesis of glucofructosanes in vitro by extracts of different organs of the artichoke.]
  Journal
Bull. Soc. Chim. Biol. (Paris). 34 (1952) 171-82.
Reference
3  [PMID:14886320]
  Authors
EDELMAN J, BACON JS.
  Title
Transfructosidation in extracts of the tubers of Helianthus tuberosus L.
  Journal
Biochem. J. 49 (1951) 529-40.
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
CAS: 
9030-16-4

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