Entry
Name
alpha-(1->3) branching sucrase;
branching sucrase A;
BRS-A;
brsA (gene name)
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
sucrose:(1->6)-alpha-D-glucan 3-alpha-D-[(1->3)-alpha-D-glucosyl]-transferase
Reaction(IUBMB)
sucrose + a (1->6)-alpha-D-glucan = D-fructose + a (1->6)-alpha-D-glucan containing a (1->3)-alpha-D-glucose branch [RN:
R12349 ]
Reaction(KEGG)
Substrate
sucrose [CPD:
C00089 ];
(1->6)-alpha-D-glucan
Product
D-fructose [CPD:
C00095 ];
(1->6)-alpha-D-glucan containing a (1->3)-alpha-D-glucose branch [CPD:
C22097 ]
Comment
The enzyme from Leuconostoc spp. is responsible for producing alpha-(1->3) branches in alpha-(1->6) glucans by transferring the glucose residue from fructose to a 3-hydroxyl group of a glucan.
History
EC 2.4.1.362 created 2019
Orthology
K23396 alpha-(1->3) branching sucrase
Reference
Authors
Vuillemin M, Claverie M, Brison Y, Severac E, Bondy P, Morel S, Monsan P, Moulis C, Remaud-Simeon M
Title
Characterization of the First alpha-(1->3) Branching Sucrases of the GH70 Family.
Journal
Sequence
Reference
Authors
Moulis C, Andre I, Remaud-Simeon M
Title
GH13 amylosucrases and GH70 branching sucrases, atypical enzymes in their respective families.
Journal
Other DBs
ExPASy - ENZYME nomenclature database: 2.4.1.362