ID   SECB_ECOK1              Reviewed;         155 AA.
AC   A1AHE6;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 2.
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=Ecok1_35920;
GN   ORFNames=APECO1_2846;
OS   Escherichia coli O1:K1 / APEC.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=405955;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17293413; DOI=10.1128/jb.01726-06;
RA   Johnson T.J., Kariyawasam S., Wannemuehler Y., Mangiamele P., Johnson S.J.,
RA   Doetkott C., Skyberg J.A., Lynne A.M., Johnson J.R., Nolan L.K.;
RT   "The genome sequence of avian pathogenic Escherichia coli strain O1:K1:H7
RT   shares strong similarities with human extraintestinal pathogenic E. coli
RT   genomes.";
RL   J. Bacteriol. 189:3228-3236(2007).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABJ03086.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000468; ABJ03086.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_000003382.1; NC_008563.1.
DR   AlphaFoldDB; A1AHE6; -.
DR   SMR; A1AHE6; -.
DR   EnsemblBacteria; ABJ03086; ABJ03086; APECO1_2846.
DR   GeneID; 66672493; -.
DR   KEGG; ecv:APECO1_2846; -.
DR   HOGENOM; CLU_111574_1_0_6; -.
DR   Proteomes; UP000008216; 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_0000318225"
SQ   SEQUENCE   155 AA;  17291 MW;  F5041AEF548CBF50 CRC64;
     MSEQNNTEMT FQIQRIYTKD ISFEAPNAPH VFQKDWQPEV KLDLDTASTQ LADDVYEVVL
     RVTVTASLGE ETAFLCEVQQ GGIFSIAGIE GTQMAHCLGA YCPNILFPYA RECITSMVSR
     GTFPQLNLAP VNFDALFMNY LQQQAGEGTE EHQDA