| UniProt functional annotation for P69178 | |||
| UniProt codes: P69178, P08027. |
| Organism: | Bacteriophage H30. | |
| Taxonomy: | Viruses; unclassified bacterial viruses. | |
| Function: | The B subunit is responsible for the binding of the holotoxin to specific receptors on the target cell surface, such as globotriaosylceramide (Gb3) in human intestinal microvilli. | |
| Subunit: | Shiga-like toxin contains a single subunit A and five copies of subunit B. {ECO:0000269|Ref.2}. | |
| Subcellular location: | Secreted. | |
| Domain: | There are three Gb3-binding sites in each subunit B monomer, allowing for a tighter binding to the target cell. Binding sites 1 and 2 have higher binding affinities than site 3 (By similarity). {ECO:0000250}. | |
| Similarity: | Belongs to the stxB family. {ECO:0000305}. | |
Annotations taken from UniProtKB at the EBI.