HAMAP rule MF_00821
General rule information
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| Accession | MF_00821 |
| Dates | 7-DEC-2005 (Created)
1-JUN-2023 (Last updated, Version 15) |
| Name | SecB |
| Scope(s) |
Bacteria Alphaproteobacteria Betaproteobacteria Gammaproteobacteria Magnetococcus |
| Template(s) | P0AG86 (SECB_ECOLI); P44853 (SECB_HAEIN); [ Recover all ] |
| Triggered by |
HAMAP; MF_00821 (Get profile general information and statistics) |
Propagated annotation
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Identifier, protein and gene names
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| Identifier | SECB |
| Protein name | RecName: Full=Protein-export protein SecB; |
| Gene name | Name=secB; |
Comments
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| FUNCTION | One of the proteins required for the normal export of preproteins out of the cell cytoplasm. It is a molecular chaperone that binds to a subset of precursor proteins, maintaining them in a translocation-competent state. It also specifically binds to its receptor SecA. |
| SUBUNIT | Homotetramer, a dimer of dimers. One homotetramer interacts with 1 SecA dimer. |
| SUBCELLULAR LOCATION | Cytoplasm. |
| SIMILARITY | Belongs to the SecB family. |
Keywords
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Gene Ontology
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| GO:0006457; Biological process:protein folding |
| GO:0015031; Biological process:protein transport |
| GO:0005737; Cellular component:cytoplasm |
Cross-references
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Features
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Additional information
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| Size range | 140-188 amino acids |
| Related rules |
None |
| Fusion | Nter: None Cter: None |
| Comments | Missing in some highly reduced Gammaproteobacteria, there is also a copy in the Deltaproteobacteria DESPS. |