ID SECB_BRADU Reviewed; 161 AA. AC Q89WN7; DT 20-DEC-2005, integrated into UniProtKB/Swiss-Prot. DT 01-JUN-2003, sequence version 1. DT 02-SEP-2026, entry version 103. DE RecName: Full=Protein-export protein SecB {ECO:0000255|HAMAP-Rule:MF_00821}; GN Name=secB {ECO:0000255|HAMAP-Rule:MF_00821}; GN OrderedLocusNames=bll0641; OS Bradyrhizobium diazoefficiens (strain JCM 10833 / BCRC 13528 / IAM 13628 / OS NBRC 14792 / USDA 110). OC Bacteria; Pseudomonadati; Pseudomonadota; Alphaproteobacteria; OC Hyphomicrobiales; Nitrobacteraceae; Bradyrhizobium. OX NCBI_TaxID=224911; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=JCM 10833 / BCRC 13528 / IAM 13628 / NBRC 14792 / USDA 110; RX PubMed=12597275; DOI=10.1093/dnares/9.6.189; RA Kaneko T., Nakamura Y., Sato S., Minamisawa K., Uchiumi T., Sasamoto S., RA Watanabe A., Idesawa K., Iriguchi M., Kawashima K., Kohara M., RA Matsumoto M., Shimpo S., Tsuruoka H., Wada T., Yamada M., Tabata S.; RT "Complete genomic sequence of nitrogen-fixing symbiotic bacterium RT Bradyrhizobium japonicum USDA110."; RL DNA Res. 9:189-197(2002). 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 --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; BA000040; BAC45906.1; -; Genomic_DNA. DR RefSeq; WP_011083468.1; NC_004463.1. DR AlphaFoldDB; Q89WN7; -. DR SMR; Q89WN7; -. DR FunCoup; Q89WN7; 322. DR STRING; 224911.AAV28_00040; -. DR PaxDb; 224911-AAV28_00040; -. DR EnsemblBacteria; BAC45906; BAC45906; BAC45906. DR GeneID; 46487914; -. DR KEGG; bja:bll0641; -. DR PATRIC; fig|224911.44.peg.10; -. DR eggNOG; COG1952; Bacteria. DR HOGENOM; CLU_111574_0_0_5; -. DR InParanoid; Q89WN7; -. DR OrthoDB; 9795145at2; -. DR PhylomeDB; Q89WN7; -. DR Proteomes; UP000002526; Chromosome. DR GO; GO:0005829; C:cytosol; IBA:GO_Central. DR GO; GO:0070678; F:preprotein binding; IBA:GO_Central. DR GO; GO:0006457; P:protein folding; IEA:UniProtKB-UniRule. DR GO; GO:0051262; P:protein tetramerization; IEA:InterPro. DR GO; GO:0043952; P:protein transport by the Sec complex; IBA:GO_Central. DR Gene3D; 3.10.420.10; SecB-like; 1. DR HAMAP; MF_00821; SecB; 1. DR InterPro; IPR003708; SecB. DR InterPro; IPR035958; SecB-like_sf. DR NCBIfam; NF004392; PRK05751.1-3; 1. DR NCBIfam; TIGR00809; secB; 1. DR PANTHER; PTHR36918; -; 1. DR PANTHER; PTHR36918:SF1; PROTEIN-EXPORT PROTEIN SECB; 1. DR Pfam; PF02556; SecB; 1. DR PRINTS; PR01594; SECBCHAPRONE. DR SUPFAM; SSF54611; SecB-like; 1. PE 3: Inferred from homology; KW Chaperone; Cytoplasm; Protein transport; Reference proteome; Translocation; KW Transport. FT CHAIN 1..161 FT /note="Protein-export protein SecB" FT /id="PRO_0000055351" SQ SEQUENCE 161 AA; 17456 MW; F9B4BE8C3D372416 CRC64; MTNGNGTPPE AAPAPQLNVL AQYTKDLSFE NPNAPSSLQQ QGQPPQINIQ INVGANNLSE QEFEVTLSVE GKAETAGKVM FSFELAYAGV FRIVNVPKEN LHPLVMIECP RLLFPFAREI IATAVRDGGF PPLMLDPVDF VGLYRQNMER QMAAGGQAGQ A //