ORENZA : a database of ORphan ENZyme Activities

ORphan ENZyme ActivitiesSorted by :
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EC used by the NC-IUBMBSorted by :
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EC 2.4.1.162 is Orphan !
Common name :Aldose beta-D-fructosyltransferase

Systematic name :Alpha-D-aldosyl-beta-D-fructoside:aldose 1-beta-D-fructosyltransferase

Other names :1,4-alpha-glucan:1,4-alpha-glucan 4-alpha-glucosyltransferase
Amylase III
1,4-alpha-D-glucan:1,4-alpha-D-glucan 4-alpha-D-glucosyltransferase
Alpha-1,4-transglucosylase
Comments :The enzyme acts on amylose, amylopectin, glycogen and maltooligosaccharides. No detectable free glucose is formed, indicating the enzyme does not act as a hydrolase. The enzyme from the bacterium Cellvibrio japonicus has the highest activity with maltotriose as a donor, and also accepts maltose (3), while the enzyme from amoeba does not accept maltose (1,2). Oligosaccharides with 1->6 linkages cannot function as donors, but can act as acceptors (3). Unlike EC 2.4.1.25, 4-alpha-glucanotransferase, this enzyme can transfer only a single glucosyl residue. The enzyme acts on amylose, amylopectin, glycogen and maltooligosaccharides. No detectable free glucose is formed, indicating the enzyme does not act as a hydrolase. The enzyme from the bacterium Cellvibrio japonicus has the highest activity with maltotriose as a donor, and also accepts maltose, while the enzyme from amoeba does not accept maltose. Oligosaccharides with 1->6 linkages cannot function as donors, but can act as acceptors. Unlike EC 2.4.1.25, this enzyme can transfer only a single glucosyl residue.

Created :EC 2.4.1.162 created 1989, modified 1999

BRENDA organisms :Bacillus subtilis
Erwinia sp.

Swiss-ProtNo protein sequences are associated with EC 2.4.1.162 in Swiss-Prot

TrEMBLNo protein sequences are associated with EC 2.4.1.162 in TrEMBL

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for EC 2.4.1.162.

Links to other databases
NC-IUBMB, INTENZ, ENZYME, PDB, BRENDA, KEGG, BIOCYC, PubMed,NCBI-Entrez

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