ID   SECB_SHIBS              Reviewed;         155 AA.
AC   Q31V12;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   25-MAY-2022, entry version 85.
DE   RecName: Full=Protein-export protein SecB {ECO:0000255|HAMAP-Rule:MF_00821};
GN   Name=secB {ECO:0000255|HAMAP-Rule:MF_00821}; OrderedLocusNames=SBO_3615;
OS   Shigella boydii serotype 4 (strain Sb227).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Shigella.
OX   NCBI_TaxID=300268;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sb227;
RX   PubMed=16275786; DOI=10.1093/nar/gki954;
RA   Yang F., Yang J., Zhang X., Chen L., Jiang Y., Yan Y., Tang X., Wang J.,
RA   Xiong Z., Dong J., Xue Y., Zhu Y., Xu X., Sun L., Chen S., Nie H., Peng J.,
RA   Xu J., Wang Y., Yuan Z., Wen Y., Yao Z., Shen Y., Qiang B., Hou Y., Yu J.,
RA   Jin Q.;
RT   "Genome dynamics and diversity of Shigella species, the etiologic agents of
RT   bacillary dysentery.";
RL   Nucleic Acids Res. 33:6445-6458(2005).
CC   -!- FUNCTION: One of the proteins required for the normal export of
CC       preproteins out of the cell cytoplasm. It is a molecular chaperone that
CC       binds to a subset of precursor proteins, maintaining them in a
CC       translocation-competent state. It also specifically binds to its
CC       receptor SecA. {ECO:0000255|HAMAP-Rule:MF_00821}.
CC   -!- SUBUNIT: Homotetramer, a dimer of dimers. One homotetramer interacts
CC       with 1 SecA dimer. {ECO:0000255|HAMAP-Rule:MF_00821}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00821}.
CC   -!- SIMILARITY: Belongs to the SecB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00821}.
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DR   EMBL; CP000036; ABB68096.1; -; Genomic_DNA.
DR   RefSeq; WP_000003377.1; NC_007613.1.
DR   AlphaFoldDB; Q31V12; -.
DR   SMR; Q31V12; -.
DR   EnsemblBacteria; ABB68096; ABB68096; SBO_3615.
DR   GeneID; 67417612; -.
DR   KEGG; sbo:SBO_3615; -.
DR   HOGENOM; CLU_111574_1_0_6; -.
DR   OMA; CPNVLFP; -.
DR   Proteomes; UP000007067; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0051082; F:unfolded protein binding; IEA:InterPro.
DR   GO; GO:0006457; P:protein folding; IEA:UniProtKB-UniRule.
DR   GO; GO:0051262; P:protein tetramerization; IEA:InterPro.
DR   GO; GO:0015031; P:protein transport; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.10.420.10; -; 1.
DR   HAMAP; MF_00821; SecB; 1.
DR   InterPro; IPR003708; SecB.
DR   InterPro; IPR035958; SecB-like_sf.
DR   PANTHER; PTHR36918; PTHR36918; 1.
DR   Pfam; PF02556; SecB; 1.
DR   PRINTS; PR01594; SECBCHAPRONE.
DR   SUPFAM; SSF54611; SSF54611; 1.
DR   TIGRFAMs; TIGR00809; secB; 1.
PE   3: Inferred from homology;
KW   Chaperone; Cytoplasm; Protein transport; Translocation; Transport.
FT   CHAIN           1..155
FT                   /note="Protein-export protein SecB"
FT                   /id="PRO_1000062527"
SQ   SEQUENCE   155 AA;  17277 MW;  00514C5F393A643D CRC64;
     MSEQNNTEMT FQIQRIYTKD ISFEAPNAPH VFQKDWQPEV KLDLDTASSQ LADDVYEVVL
     RVTVTASLGE ETAFLCEVQQ GGIFSIAGIE GTQMAHCLGA YCPNILFPYA RECITSMVSR
     GTFPQLNLAP VNFDALFMNY LQQQAGEGTE EHQDA