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UniProt functional annotation for Q7A189 | ||
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| UniProt code: Q7A189. |
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| Organism: | |
Staphylococcus aureus (strain MW2). |
| Taxonomy: | |
Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae; Staphylococcus. |
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| Function: | |
Specifically inhibits the cysteine protease staphopain B (SspB) by blocking the active site of the enzyme. Probably required to protect cytoplasmic proteins from being degraded by prematurely activated/folded prostaphopain B. Also involved in growth capacity, viability and bacterial morphology (By similarity). {ECO:0000250}. |
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| Subunit: | |
Forms a stable non-covalent complex with prematurely activated/folded SspB. {ECO:0000250}. |
| Subcellular location: | |
Cytoplasm {ECO:0000250}. |
| Domain: | |
N-terminal residues are not required for inhibitory activity. |
| Miscellaneous: | |
Inactivated by staphylococcal serine protease (SspA). {ECO:0000250}. |
| Similarity: | |
Belongs to the protease inhibitor I57 (SspC) family. {ECO:0000305}. |
Annotations taken from UniProtKB at the EBI.