HAMAP rule MF_01248
General rule information
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| PURL | https://purl.expasy.org/hamap/rule/MF_01248 |
| Accession | MF_01248 |
| Dates | 28-FEB-2005 (Created)
12-JUN-2025 (Last updated, Version 22) |
| Name | GlgX |
| Scope(s) |
Bacteria Enterobacterales |
| Template(s) | P15067; Q8KR69; [ Recover all ] |
| Triggered by |
HAMAP; MF_01248 (Get profile general information and statistics) |
Propagated annotation
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Identifier, protein and gene names
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| Identifier | GLGX |
| Protein name | RecName: Full=Glycogen debranching enzyme; EC=3.2.1.196; AltName: Full=Limit dextrin alpha-1,6-maltotetraose-hydrolase; |
| Gene name | Name=glgX; |
Comments
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| FUNCTION | Removes 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=3.2.1.196; |
| PATHWAY | Glycan degradation; glycogen degradation. |
| SIMILARITY | Belongs to the glycosyl hydrolase 13 family. |
Keywords
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Gene Ontology
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| GO:0120549; Molecular function:limit dextrin alpha-1,6-maltotetraose-hydrolase activity |
| GO:0005980; Biological process:glycogen catabolic process |
Cross-references
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Features
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| 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
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| Size range | 650-675 amino acids |
| Related rules |
None |
| Fusion | Nter: None Cter: None |