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HAMAP rule MF_00821

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General rule information [?]

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 [?]

Identifier, protein and gene names [?]

Identifier SECB
Protein name RecName: Full=Protein-export protein SecB;
Gene name Name=secB;

Comments [?]

FUNCTIONOne 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.
SUBUNITHomotetramer, a dimer of dimers. One homotetramer interacts with 1 SecA dimer.
SUBCELLULAR LOCATIONCytoplasm.
SIMILARITYBelongs 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;
PRINTS PR01594; SECBCHAPRONE; 1;
NCBIfam TIGR00809; SecB; 1;

Features [?]


Additional information [?]

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.



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