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UniProt functional annotation for Q8A1G2 | ||
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| UniProt code: Q8A1G2. |
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| Organism: | |
Bacteroides thetaiotaomicron (strain ATCC 29148 / DSM 2079 / NCTC 10582 / E50 / VPI-5482). |
| Taxonomy: | |
Bacteria; Bacteroidetes; Bacteroidia; Bacteroidales; Bacteroidaceae; Bacteroides. |
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| Function: | |
Major starch-binding protein present at the surface of the cell. Mediates starch-binding before starch transport in the periplasm for degradation. {ECO:0000269|PubMed:10986238, ECO:0000269|PubMed:11717282, ECO:0000269|PubMed:18611383, ECO:0000269|PubMed:9006015}. |
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| Pathway: | |
Glycan degradation; starch degradation. |
| Subunit: | |
Interacts with SusC. {ECO:0000269|PubMed:11717282, ECO:0000269|PubMed:18611383}. |
| Subcellular location: | |
Cell outer membrane {ECO:0000305|PubMed:10986238, ECO:0000305|PubMed:9006015}; Lipid-anchor {ECO:0000305|PubMed:10986238, ECO:0000305|PubMed:9006015}. |
| Induction: | |
By maltose. {ECO:0000269|PubMed:9006015}. |
| Domain: | |
The binding pocket contains an arc of aromatic residues that complements the natural helical structure of starch and imposes this conformation on bound maltoheptaose. Binds cyclic oligosaccharides with higher affinity than linear forms (PubMed:18611383). {ECO:0000269|PubMed:18611383}. |
| Disruption phenotype: | |
Abolished ability to grow on amylopectin and pullulan, as well as maltohexaose and maltoheptaose. {ECO:0000269|PubMed:18611383}. |
| Similarity: | |
Belongs to the SusD family. {ECO:0000305}. |
| Sequence caution: | |
Sequence=AAB42172.1; Type=Frameshift; Evidence={ECO:0000305}; |
Annotations taken from UniProtKB at the EBI.