ID   SECB_XYLFA              Reviewed;         172 AA.
AC   Q9PCH8;
DT   20-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT   20-DEC-2005, sequence version 2.
DT   25-MAY-2022, entry version 98.
DE   RecName: Full=Protein-export protein SecB {ECO:0000255|HAMAP-Rule:MF_00821};
GN   Name=secB {ECO:0000255|HAMAP-Rule:MF_00821}; OrderedLocusNames=XF_1801;
OS   Xylella fastidiosa (strain 9a5c).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xylella.
OX   NCBI_TaxID=160492;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=9a5c;
RX   PubMed=10910347; DOI=10.1038/35018003;
RA   Simpson A.J.G., Reinach F.C., Arruda P., Abreu F.A., Acencio M.,
RA   Alvarenga R., Alves L.M.C., Araya J.E., Baia G.S., Baptista C.S.,
RA   Barros M.H., Bonaccorsi E.D., Bordin S., Bove J.M., Briones M.R.S.,
RA   Bueno M.R.P., Camargo A.A., Camargo L.E.A., Carraro D.M., Carrer H.,
RA   Colauto N.B., Colombo C., Costa F.F., Costa M.C.R., Costa-Neto C.M.,
RA   Coutinho L.L., Cristofani M., Dias-Neto E., Docena C., El-Dorry H.,
RA   Facincani A.P., Ferreira A.J.S., Ferreira V.C.A., Ferro J.A., Fraga J.S.,
RA   Franca S.C., Franco M.C., Frohme M., Furlan L.R., Garnier M., Goldman G.H.,
RA   Goldman M.H.S., Gomes S.L., Gruber A., Ho P.L., Hoheisel J.D.,
RA   Junqueira M.L., Kemper E.L., Kitajima J.P., Krieger J.E., Kuramae E.E.,
RA   Laigret F., Lambais M.R., Leite L.C.C., Lemos E.G.M., Lemos M.V.F.,
RA   Lopes S.A., Lopes C.R., Machado J.A., Machado M.A., Madeira A.M.B.N.,
RA   Madeira H.M.F., Marino C.L., Marques M.V., Martins E.A.L., Martins E.M.F.,
RA   Matsukuma A.Y., Menck C.F.M., Miracca E.C., Miyaki C.Y.,
RA   Monteiro-Vitorello C.B., Moon D.H., Nagai M.A., Nascimento A.L.T.O.,
RA   Netto L.E.S., Nhani A. Jr., Nobrega F.G., Nunes L.R., Oliveira M.A.,
RA   de Oliveira M.C., de Oliveira R.C., Palmieri D.A., Paris A., Peixoto B.R.,
RA   Pereira G.A.G., Pereira H.A. Jr., Pesquero J.B., Quaggio R.B.,
RA   Roberto P.G., Rodrigues V., de Rosa A.J.M., de Rosa V.E. Jr., de Sa R.G.,
RA   Santelli R.V., Sawasaki H.E., da Silva A.C.R., da Silva A.M.,
RA   da Silva F.R., Silva W.A. Jr., da Silveira J.F., Silvestri M.L.Z.,
RA   Siqueira W.J., de Souza A.A., de Souza A.P., Terenzi M.F., Truffi D.,
RA   Tsai S.M., Tsuhako M.H., Vallada H., Van Sluys M.A., Verjovski-Almeida S.,
RA   Vettore A.L., Zago M.A., Zatz M., Meidanis J., Setubal J.C.;
RT   "The genome sequence of the plant pathogen Xylella fastidiosa.";
RL   Nature 406:151-159(2000).
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=AAF84609.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AE003849; AAF84609.1; ALT_INIT; Genomic_DNA.
DR   PIR; G82637; G82637.
DR   RefSeq; WP_010894270.1; NC_002488.3.
DR   AlphaFoldDB; Q9PCH8; -.
DR   SMR; Q9PCH8; -.
DR   STRING; 160492.XF_1801; -.
DR   EnsemblBacteria; AAF84609; AAF84609; XF_1801.
DR   KEGG; xfa:XF_1801; -.
DR   eggNOG; COG1952; Bacteria.
DR   HOGENOM; CLU_111574_1_0_6; -.
DR   OMA; CPNVLFP; -.
DR   Proteomes; UP000000812; 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..172
FT                   /note="Protein-export protein SecB"
FT                   /id="PRO_0000055431"
SQ   SEQUENCE   172 AA;  18693 MW;  C169F8E1EDEBE4CC CRC64;
     MSDEITNGAA KPTEAISGPT FTIEKIYIKD VSFEAPNSPA VFNEAGQPEL QLNLNQRVQR
     LNENAFELVL HVTLTCTAAG KTAYVVEVQQ AGVFGLFGLD QHAIGVLLGT QCPNILFPYV
     RSLVSDLIQI GGFPPFYLQP INFDALYAET LRQRAQNEKE GSQISSHPAG NA