ID   SECB_ACTSZ              Reviewed;         166 AA.
AC   A6VLB7;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   25-MAY-2022, entry version 77.
DE   RecName: Full=Protein-export protein SecB {ECO:0000255|HAMAP-Rule:MF_00821};
GN   Name=secB {ECO:0000255|HAMAP-Rule:MF_00821}; OrderedLocusNames=Asuc_0386;
OS   Actinobacillus succinogenes (strain ATCC 55618 / DSM 22257 / CCUG 43843 /
OS   130Z).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Actinobacillus.
OX   NCBI_TaxID=339671;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 55618 / DSM 22257 / CCUG 43843 / 130Z;
RX   PubMed=21118570; DOI=10.1186/1471-2164-11-680;
RA   McKinlay J.B., Laivenieks M., Schindler B.D., McKinlay A.A.,
RA   Siddaramappa S., Challacombe J.F., Lowry S.R., Clum A., Lapidus A.L.,
RA   Burkhart K.B., Harkins V., Vieille C.;
RT   "A genomic perspective on the potential of Actinobacillus succinogenes for
RT   industrial succinate production.";
RL   BMC Genomics 11:680-680(2010).
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; CP000746; ABR73764.1; -; Genomic_DNA.
DR   RefSeq; WP_012072149.1; NC_009655.1.
DR   AlphaFoldDB; A6VLB7; -.
DR   SMR; A6VLB7; -.
DR   STRING; 339671.Asuc_0386; -.
DR   EnsemblBacteria; ABR73764; ABR73764; Asuc_0386.
DR   KEGG; asu:Asuc_0386; -.
DR   eggNOG; COG1952; Bacteria.
DR   HOGENOM; CLU_111574_1_0_6; -.
DR   OMA; CPNVLFP; -.
DR   OrthoDB; 1624074at2; -.
DR   Proteomes; UP000001114; 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; Reference proteome; Translocation;
KW   Transport.
FT   CHAIN           1..166
FT                   /note="Protein-export protein SecB"
FT                   /id="PRO_0000318216"
SQ   SEQUENCE   166 AA;  18492 MW;  C8361FC0A370ED9C CRC64;
     MTDENQAAPA EQAQEPVLQI QRIYVKDVSF EAPNLPDIFQ QEWKPNLNFD LGTEAKQLGE
     NLFEVTLNVS VETTLEDSGD AAFICEVKQA GVFTIGGLTD IQLTHALTSQ CPNMLFPYAR
     ELVASLVNRG TFPPLNLAPV NFDALFLEHM RRVEEESAPE EQPTLN