ID   FIXA_RHIME              Reviewed;         292 AA.
AC   P09818;
DT   01-JUL-1989, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1989, sequence version 1.
DT   25-MAY-2022, entry version 113.
DE   RecName: Full=Protein FixA;
GN   Name=fixA; OrderedLocusNames=RA0447; ORFNames=SMa0822;
OS   Rhizobium meliloti (strain 1021) (Ensifer meliloti) (Sinorhizobium
OS   meliloti).
OG   Plasmid pSymA (megaplasmid 1).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Rhizobiaceae; Sinorhizobium/Ensifer group; Sinorhizobium.
OX   NCBI_TaxID=266834;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=1021;
RX   PubMed=3029021; DOI=10.1128/jb.169.3.1127-1136.1987;
RA   Earl C.D., Ronson C.W., Ausubel F.M.;
RT   "Genetic and structural analysis of the Rhizobium meliloti fixA, fixB,
RT   fixC, and fixX genes.";
RL   J. Bacteriol. 169:1127-1136(1987).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=1021;
RX   PubMed=11481432; DOI=10.1073/pnas.161294798;
RA   Barnett M.J., Fisher R.F., Jones T., Komp C., Abola A.P., Barloy-Hubler F.,
RA   Bowser L., Capela D., Galibert F., Gouzy J., Gurjal M., Hong A., Huizar L.,
RA   Hyman R.W., Kahn D., Kahn M.L., Kalman S., Keating D.H., Palm C.,
RA   Peck M.C., Surzycki R., Wells D.H., Yeh K.-C., Davis R.W., Federspiel N.A.,
RA   Long S.R.;
RT   "Nucleotide sequence and predicted functions of the entire Sinorhizobium
RT   meliloti pSymA megaplasmid.";
RL   Proc. Natl. Acad. Sci. U.S.A. 98:9883-9888(2001).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=1021;
RX   PubMed=11474104; DOI=10.1126/science.1060966;
RA   Galibert F., Finan T.M., Long S.R., Puehler A., Abola P., Ampe F.,
RA   Barloy-Hubler F., Barnett M.J., Becker A., Boistard P., Bothe G.,
RA   Boutry M., Bowser L., Buhrmester J., Cadieu E., Capela D., Chain P.,
RA   Cowie A., Davis R.W., Dreano S., Federspiel N.A., Fisher R.F., Gloux S.,
RA   Godrie T., Goffeau A., Golding B., Gouzy J., Gurjal M., Hernandez-Lucas I.,
RA   Hong A., Huizar L., Hyman R.W., Jones T., Kahn D., Kahn M.L., Kalman S.,
RA   Keating D.H., Kiss E., Komp C., Lelaure V., Masuy D., Palm C., Peck M.C.,
RA   Pohl T.M., Portetelle D., Purnelle B., Ramsperger U., Surzycki R.,
RA   Thebault P., Vandenbol M., Vorhoelter F.J., Weidner S., Wells D.H.,
RA   Wong K., Yeh K.-C., Batut J.;
RT   "The composite genome of the legume symbiont Sinorhizobium meliloti.";
RL   Science 293:668-672(2001).
RN   [4]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 1-11.
RX   PubMed=6317191; DOI=10.1016/0092-8674(83)90181-2;
RA   Better M., Lewis B., Corbin D., Ditta G.S., Helinski D.R.;
RT   "Structural relationships among Rhizobium meliloti symbiotic promoters.";
RL   Cell 35:479-485(1983).
CC   -!- FUNCTION: May play a role in a redox process involved in nitrogen
CC       fixation.
CC   -!- SUBUNIT: FixA and FixB form a heterodimer. {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the ETF beta-subunit/FixA family. {ECO:0000305}.
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DR   EMBL; M15546; AAA21768.1; -; Genomic_DNA.
DR   EMBL; AE006469; AAK65105.1; -; Genomic_DNA.
DR   EMBL; K01466; AAA26331.2; -; Genomic_DNA.
DR   PIR; A26952; A26952.
DR   PIR; G95317; G95317.
DR   RefSeq; NP_435693.1; NC_003037.1.
DR   RefSeq; WP_003532767.1; NC_003037.1.
DR   AlphaFoldDB; P09818; -.
DR   SMR; P09818; -.
DR   EnsemblBacteria; AAK65105; AAK65105; SMa0822.
DR   GeneID; 61599258; -.
DR   KEGG; sme:SMa0822; -.
DR   PATRIC; fig|266834.11.peg.460; -.
DR   HOGENOM; CLU_060196_2_1_5; -.
DR   OMA; ADLNEWD; -.
DR   Proteomes; UP000001976; Plasmid pSymA.
DR   GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR   GO; GO:0009399; P:nitrogen fixation; IEA:UniProtKB-KW.
DR   CDD; cd01714; ETF_beta; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   InterPro; IPR000049; ET-Flavoprotein_bsu_CS.
DR   InterPro; IPR014730; ETF_a/b_N.
DR   InterPro; IPR012255; ETF_b.
DR   InterPro; IPR033948; ETF_beta_N.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   PANTHER; PTHR21294; PTHR21294; 1.
DR   Pfam; PF01012; ETF; 1.
DR   PIRSF; PIRSF000090; Beta-ETF; 1.
DR   SMART; SM00893; ETF; 1.
DR   PROSITE; PS01065; ETF_BETA; 1.
PE   3: Inferred from homology;
KW   Electron transport; Nitrogen fixation; Plasmid; Reference proteome;
KW   Transport.
FT   CHAIN           1..292
FT                   /note="Protein FixA"
FT                   /id="PRO_0000167890"
SQ   SEQUENCE   292 AA;  31147 MW;  7DA86911129A549A CRC64;
     MHLVVCIKQV PDSAQIRVHP VTNTIMRQGV PTIINPHDLA ALEEALKLCD TYGGEVTVVT
     MGPKMAEDAL RKALTFGAHR AVLLTDRHFA GSDTLATSFA LAQAIAEIGE TFGTPDVVFT
     GKQTIDGDTA QVGPGIAKRL DLQQLTYVAK ILSIDAASRE ITVERRAEGG SQILRTGLPC
     LVTMLDGADA IRRGRLDDAL RAARTKVVKW SAADAGIAEP ANCGLRGSPT VVKRVFAPTS
     REQKARQIDT TNKPLREIAD GLIAAIFADR PALKHDLGST GQQGAPDVDR ES