ID   SECB_AZOSB              Reviewed;         151 AA.
AC   A1K9C3;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 78.
DE   RecName: Full=Protein-export protein SecB {ECO:0000255|HAMAP-Rule:MF_00821};
GN   Name=secB {ECO:0000255|HAMAP-Rule:MF_00821}; OrderedLocusNames=azo2812;
OS   Azoarcus sp. (strain BH72).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Rhodocyclales; Zoogloeaceae;
OC   Azoarcus.
OX   NCBI_TaxID=418699;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BH72;
RX   PubMed=17057704; DOI=10.1038/nbt1243;
RA   Krause A., Ramakumar A., Bartels D., Battistoni F., Bekel T., Boch J.,
RA   Boehm M., Friedrich F., Hurek T., Krause L., Linke B., McHardy A.C.,
RA   Sarkar A., Schneiker S., Syed A.A., Thauer R., Vorhoelter F.-J.,
RA   Weidner S., Puehler A., Reinhold-Hurek B., Kaiser O., Goesmann A.;
RT   "Complete genome of the mutualistic, N2-fixing grass endophyte Azoarcus sp.
RT   strain BH72.";
RL   Nat. Biotechnol. 24:1385-1391(2006).
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; AM406670; CAL95428.1; -; Genomic_DNA.
DR   RefSeq; WP_011766538.1; NC_008702.1.
DR   AlphaFoldDB; A1K9C3; -.
DR   SMR; A1K9C3; -.
DR   STRING; 62928.azo2812; -.
DR   EnsemblBacteria; CAL95428; CAL95428; azo2812.
DR   KEGG; aoa:dqs_2951; -.
DR   KEGG; azo:azo2812; -.
DR   eggNOG; COG1952; Bacteria.
DR   HOGENOM; CLU_111574_1_0_4; -.
DR   OMA; CPNVLFP; -.
DR   OrthoDB; 1624074at2; -.
DR   Proteomes; UP000002588; 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..151
FT                   /note="Protein-export protein SecB"
FT                   /id="PRO_0000318218"
SQ   SEQUENCE   151 AA;  16511 MW;  2086A94BC6A01A31 CRC64;
     MTENAQPMFS IEKIYIKDLS LEVPNAPKIF LERDTPQISV QLRTEGNTVD EGLYEVTLTV
     TVSATLGEDR SVFLVEVAQA GVFQIRNVPP AELEPVMMIG CPNILFPYAR EAVSAAVSRA
     GFQPIVLAPV NFEALYQQQQ AAKEGGDVAI Q