Entry
Name
1,2-beta-oligoglucan phosphorylase
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
1,2-beta-D-glucan:phosphate alpha-D-glucosyltransferase
Reaction(IUBMB)
[(1->2)-beta-D-glucosyl]n + phosphate = [(1->2)-beta-D-glucosyl]n-1 + alpha-D-glucose 1-phosphate
Reaction(KEGG)
Substrate
[(1->2)-beta-D-glucosyl]n [CPD:
C02490 ];
phosphate [CPD:
C00009 ]
Product
[(1->2)-beta-D-glucosyl]n-1;
alpha-D-glucose 1-phosphate [CPD:
C00103 ]
Comment
The enzyme has been isolated from the bacterium Listeria innocua. It catalyses the reversible phosphorolysis of beta-(1->2)-D-glucans. The minimum length of the substrate for the phosphorolytic reaction is 3 D-glucose units. In the synthetic reaction starting from sophorose and alpha-D-glucose 1-phosphate the average polymerisation degree is 39.
History
EC 2.4.1.333 created 2014
Orthology
K21298 1,2-beta-oligoglucan phosphorylase
Genes
PAEH : H70357_15785 H70357_27950
PSON : JI735_23255 JI735_32165
PDH : B9T62_06340 B9T62_22305
PMAH : PTQ21_02790 PTQ21_14490
PSPN : L1F29_02015 L1F29_03535
PPAB : KET34_09840 KET34_31740
PEZZ : HW560_08135 HW560_28990
PTAC : ACJYJG_09470 ACJYJG_28820
» show all
Taxonomy
Reference
Authors
Nakajima M, Toyoizumi H, Abe K, Nakai H, Taguchi H, Kitaoka M
Title
1,2-beta-Oligoglucan phosphorylase from Listeria innocua.
Journal
Sequence
Other DBs
ExPASy - ENZYME nomenclature database: 2.4.1.333