ID   SECB_PARDP              Reviewed;         177 AA.
AC   A1B5S4;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, 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=Pden_2784;
OS   Paracoccus denitrificans (strain Pd 1222).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodobacterales;
OC   Rhodobacteraceae; Paracoccus.
OX   NCBI_TaxID=318586;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Pd 1222;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Munk A.C., Brettin T., Bruce D., Han C., Tapia R., Gilna P., Schmutz J.,
RA   Larimer F., Land M., Hauser L., Kyrpides N., Lykidis A., Spiro S.,
RA   Richardson D.J., Moir J.W.B., Ferguson S.J., van Spanning R.J.M.,
RA   Richardson P.;
RT   "Complete sequence of chromosome 1 of Paracoccus denitrificans PD1222.";
RL   Submitted (DEC-2006) to the EMBL/GenBank/DDBJ databases.
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; CP000489; ABL70868.1; -; Genomic_DNA.
DR   RefSeq; WP_011749059.1; NC_008686.1.
DR   AlphaFoldDB; A1B5S4; -.
DR   SMR; A1B5S4; -.
DR   STRING; 318586.Pden_2784; -.
DR   PRIDE; A1B5S4; -.
DR   EnsemblBacteria; ABL70868; ABL70868; Pden_2784.
DR   KEGG; pde:Pden_2784; -.
DR   eggNOG; COG1952; Bacteria.
DR   HOGENOM; CLU_111574_0_0_5; -.
DR   OMA; CPNVLFP; -.
DR   Proteomes; UP000000361; Chromosome 1.
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..177
FT                   /note="Protein-export protein SecB"
FT                   /id="PRO_1000062490"
FT   REGION          1..22
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   177 AA;  19832 MW;  6D017B0F28E8F3EA CRC64;
     MSDENNSGAA APEAQNPGQN AAQPAVRLQI LTQYIRDLSF ENAVAQKGLP SGEVQPEISV
     QVSLDARKRP AEHQYEVISK FRVQSSNATD KSPLFLCELD YGGIFHVEGV PEDQLHPFLM
     IECPRMMFPF VRRIVSDMTR DGGFPPFNMD PVDFVALYRQ EIARRTQAQR PADQPLS