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HAMAP rule MF_01248

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General rule information [?]

Accession MF_01248
Dates 4-FEB-2004 (Created)
1-JUN-2023 (Last updated, Version 23)
Name GlgX
Scope(s) Bacteria
Template(s) P15067 (GLGX_ECOLI); Q8KR69 (GLGX_DICCH); [ Recover all ]
Triggered by HAMAP; MF_01248 (Get profile general information and statistics)

Propagated annotation [?]

Identifier, protein and gene names [?]

Identifier GLGX
Protein name RecName: Full=Glycogen debranching enzyme;
AltName: Full=Limit dextrin alpha-1,6-maltotetraose-hydrolase;
Gene name Name=glgX;

Comments [?]

FUNCTIONRemoves maltotriose and maltotetraose chains that are attached by 1,6-alpha-linkage to the limit dextrin main chain, generating a debranched limit dextrin.
CATALYTIC ACTIVITY Reaction=Hydrolysis of (1->6)-alpha-D-glucosidic linkages to branches with degrees of polymerization of three or four glucose residues in limit dextrin.; EC=;
PATHWAYGlycan degradation; glycogen degradation.
SIMILARITYBelongs to the glycosyl hydrolase 13 family.

Keywords [?]

Gene Ontology [?]

GO:0004133; Molecular function:glycogen debranching enzyme activity
GO:0005980; Biological process:glycogen catabolic process

Cross-references [?]

Pfam PF00128; Alpha-amylase; 1;
Pfam PF02922; CBM_48; 1;
NCBIfam TIGR02100; glgX_debranch; 1;

Features [?]

From: GLGX_ECOLI (P15067)
Key From To Description Tag Condition FTGroup
ACT_SITE 336 336 /note="Nucleophile" D
ACT_SITE 371 371 /note="Proton donor" E
SITE 443 443 /note="Transition state stabilizer" D

Additional information [?]

Size range 650-675 amino acids
Related rules None
Fusion Nter: None Cter: None

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