ID   TRAB_SINFN              Reviewed;         387 AA.
AC   P55416;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   04-NOV-2026, entry version 143.
DE   RecName: Full=Probable conjugal transfer protein TraB;
GN   Name=traB; OrderedLocusNames=NGR_a04000; ORFNames=y4dQ;
OS   Sinorhizobium fredii (strain NBRC 101917 / NGR234).
OG   Plasmid sym pNGR234a.
OC   Bacteria; Pseudomonadati; Pseudomonadota; Alphaproteobacteria;
OC   Hyphomicrobiales; Rhizobiaceae; Sinorhizobium/Ensifer group; Sinorhizobium.
OX   NCBI_TaxID=394;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NBRC 101917 / NGR234;
RX   PubMed=9163424; DOI=10.1038/387394a0;
RA   Freiberg C.A., Fellay R., Bairoch A., Broughton W.J., Rosenthal A.,
RA   Perret X.;
RT   "Molecular basis of symbiosis between Rhizobium and legumes.";
RL   Nature 387:394-401(1997).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NBRC 101917 / NGR234;
RX   PubMed=19376903; DOI=10.1128/aem.00515-09;
RA   Schmeisser C., Liesegang H., Krysciak D., Bakkou N., Le Quere A.,
RA   Wollherr A., Heinemeyer I., Morgenstern B., Pommerening-Roeser A.,
RA   Flores M., Palacios R., Brenner S., Gottschalk G., Schmitz R.A.,
RA   Broughton W.J., Perret X., Strittmatter A.W., Streit W.R.;
RT   "Rhizobium sp. strain NGR234 possesses a remarkable number of secretion
RT   systems.";
RL   Appl. Environ. Microbiol. 75:4035-4045(2009).
CC   -!- FUNCTION: Enhances conjugal transfer of the plasmid. {ECO:0000305}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000305}; Multi-pass membrane
CC       protein {ECO:0000305}.
CC   -!- SIMILARITY: To A.tumefaciens Ti plasmid TraB. {ECO:0000305}.
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DR   EMBL; U00090; AAB91646.1; -; Genomic_DNA.
DR   RefSeq; WP_010875412.1; NC_000914.2.
DR   AlphaFoldDB; P55416; -.
DR   KEGG; rhi:NGR_a04000; -.
DR   PATRIC; fig|394.7.peg.421; -.
DR   eggNOG; COG0388; Bacteria.
DR   HOGENOM; CLU_042375_0_0_5; -.
DR   OMA; AAWWLFH; -.
DR   OrthoDB; 8206526at2; -.
DR   Proteomes; UP000001054; Plasmid pNGR234a.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   Gene3D; 3.60.110.10; Carbon-nitrogen hydrolase; 1.
DR   InterPro; IPR003010; C-N_Hydrolase.
DR   InterPro; IPR036526; C-N_Hydrolase_sf.
DR   InterPro; IPR016707; Conjugal_tfr_TraB_rhizob.
DR   NCBIfam; NF010398; PRK13825.1-2; 1.
DR   NCBIfam; NF010400; PRK13825.1-4; 1.
DR   Pfam; PF00795; CN_hydrolase; 1.
DR   PIRSF; PIRSF017932; Conjugal_transfer_TraB_rhizob; 1.
DR   SUPFAM; SSF56317; Carbon-nitrogen hydrolase; 1.
DR   PROSITE; PS50263; CN_HYDROLASE; 1.
PE   4: Predicted;
KW   Cell membrane; Conjugation; Membrane; Plasmid; Reference proteome;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..387
FT                   /note="Probable conjugal transfer protein TraB"
FT                   /id="PRO_0000065597"
FT   TRANSMEM        16..36
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        51..71
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        76..96
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        110..130
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        135..155
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        159..179
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        252..272
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        332..352
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   DOMAIN          187..387
FT                   /note="CN hydrolase"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00054"
SQ   SEQUENCE   387 AA;  42199 MW;  0CBBF918150A2412 CRC64;
     MRRDHLQPRL LTIASIVVGT VGWSGYALLL PVALAFPILW SRARTRRVAA LVSAGYFLAA
     SRGLPQGVAA FYTSDLWPGL LLWLCASGSF VVVHTVLWTK RSDCRPFRYL LAAVLMAVPP
     MGITGWAHPV TAAGILFPGW GWWGLVATTA GLMGLVTRMW PAVAIAFTGF WLWSAANWTE
     SKLPASWQGV DLKLGSTLGR NTSIQRHRDL IATVKDRASG GVRNVVLPES ALGFWTPTFE
     RLWVKALQGT EISVISGAAA IDATGYDNVL VTLSADGGRV LYRERMPVPG SMWQPWGSWL
     GESDGARAHF FANPVVTVGN SRVAPLICYE QLVVWPTLQS MLYEPDLIVA VGNGWWTKGT
     SIVAIQRVNA IAWAKLFAKP LVLSFNT
//