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Annotation rule MF_00821
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General rule information [?]

Accession MF_00821
Dates 7-DEC-2005 (Created)
18-NOV-2019 (Last updated, Version 14)
Name SecB
Bacteria; Alphaproteobacteria
Bacteria; Betaproteobacteria
Bacteria; Gammaproteobacteria
Bacteria; Magnetococcus
Templates P0AG86 (SECB_ECOLI); P44853 (SECB_HAEIN): [Recover all]

Propagated annotation [?]

Identifier, protein and gene names [?]

Protein name
RecName: Full=Protein-export protein SecB;
Gene name

Comments [?]

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 [?]

Gene Ontology [?]

GO:0006457; Biological process: protein folding.
GO:0015031; Biological process: protein transport.
GO:0005737; Cellular component: cytoplasm.

Cross-references [?]

Pfam PF02556; SecB; 1;
TIGRFAMs TIGR00809; SecB; 1;

Additional information [?]

Size range 140-188 amino acids
Related rules None
Fusion None
Comments Missing in some highly reduced Gammaproteobacteria, there is also a copy in the Deltaproteobacteria DESPS.