ExPASy Proteomics Server

Accession	MF_00685
Dates	18-AUG-2003 (Created) 25-NOV-2009 (Last updated, Version 21)

Data class

Protein

Predictors

HAMAP; MF_00685; [distribution of match scores in UniProtKB];[seed alignment for MF_00685]

Names

GlgB

Identifier

GLGB

Protein name

RecName: Full=1,4-alpha-glucan-branching enzyme; EC=2.4.1.18; AltName: Full=Glycogen-branching enzyme; Short=BE; AltName: Full=1,4-alpha-D-glucan:1,4-alpha-D-glucan 6-glucosyl-transferase;

Gene name

glgB

FUNCTION: Catalyzes the formation of the alpha-1,6-glucosidic linkages in glycogen by scission of a 1,4-alpha-linked oligosaccharide from growing alpha-1,4-glucan chains and the subsequent attachment of the oligosaccharide to the alpha-1,6 position (By similarity).

CATALYTIC ACTIVITY: Transfers a segment of a (1->4)-alpha-D-glucan chain to a primary hydroxy group in a similar glucan chain.

PATHWAY: Glycan biosynthesis; glycogen biosynthesis.

SUBUNIT: Monomer (By similarity).

SIMILARITY: Belongs to the glycosyl hydrolase 13 family.

Pfam	PF00128; Alpha-amylase; 1; PF02806; Alpha-amylase_C; 1; PF02922; CBM_48; 1;
TIGRFAMs	TIGR01515; branching_enzym; 1;

Glycogen biosynthesis, Glycosyltransferase, Transferase.

GO:0003844; Molecular function: 1,4-alpha-glucan branching enzyme activity.
GO:0005978; Biological process: glycogen biosynthetic process.

From: GLGB_ECOLI (P07762)
Key		From		To		Description		Condition		FTGroup
ACT_SITE		300		300		By similarity		Y
ACT_SITE		335		335		By similarity		D
ACT_SITE		340		340		By similarity		H
ACT_SITE		403		403		By similarity		R
ACT_SITE		405		405		By similarity		D
ACT_SITE		458		458		By similarity		E
ACT_SITE		525		525		By similarity		H
ACT_SITE		526		526		By similarity		D

Size range:	611-838 amino acids
Related UniRules:	None
Template:	P07762 (GLGB_ECOLI); Q8GQC5 (GLGB_ERWCH): [Recover all]
Scope:	Bacteria Archaea; Thermoplasmata
Fusion:	Nter: None; Cter: None
Duplicate:	in CLOPE, CLOPS, RHIEC, RHIL3, STRAW, STRCO, XANAC, XANC5, XANC8, XANCP, XANOM, XANOR
Plasmid encoded:	in RALSO