ID   COWN_RHOP2              Reviewed;          92 AA.
AC   Q2IV18;
DT   05-APR-2011, integrated into UniProtKB/Swiss-Prot.
DT   07-MAR-2006, sequence version 1.
DT   25-MAY-2022, entry version 65.
DE   RecName: Full=N(2)-fixation sustaining protein CowN {ECO:0000255|HAMAP-Rule:MF_02117};
DE   AltName: Full=CO weal-nitrogenase {ECO:0000255|HAMAP-Rule:MF_02117};
GN   Name=cowN {ECO:0000255|HAMAP-Rule:MF_02117}; OrderedLocusNames=RPB_3246;
OS   Rhodopseudomonas palustris (strain HaA2).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Bradyrhizobiaceae; Rhodopseudomonas.
OX   NCBI_TaxID=316058;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=HaA2;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Chain P., Malfatti S., Shin M.,
RA   Vergez L., Schmutz J., Larimer F., Land M., Hauser L., Pelletier D.A.,
RA   Kyrpides N., Anderson I., Oda Y., Harwood C.S., Richardson P.;
RT   "Complete sequence of Rhodopseudomonas palustris HaA2.";
RL   Submitted (JAN-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Is required to sustain N(2)-dependent growth in the presence
CC       of low levels of carbon monoxide (CO). Probably acts by protecting the
CC       N(2) fixation ability of the nitrogenase complex, which is inactivated
CC       in the presence of CO. {ECO:0000255|HAMAP-Rule:MF_02117}.
CC   -!- SIMILARITY: Belongs to the CowN family. {ECO:0000255|HAMAP-
CC       Rule:MF_02117}.
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DR   EMBL; CP000250; ABD07942.1; -; Genomic_DNA.
DR   RefSeq; WP_011442126.1; NC_007778.1.
DR   AlphaFoldDB; Q2IV18; -.
DR   EnsemblBacteria; ABD07942; ABD07942; RPB_3246.
DR   KEGG; rpb:RPB_3246; -.
DR   eggNOG; ENOG5032TZQ; Bacteria.
DR   HOGENOM; CLU_149349_0_0_5; -.
DR   OMA; KNADWEG; -.
DR   OrthoDB; 1880419at2; -.
DR   Proteomes; UP000008809; Chromosome.
DR   GO; GO:0009399; P:nitrogen fixation; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_02117; CowN; 1.
DR   InterPro; IPR024899; CowN.
PE   3: Inferred from homology;
KW   Nitrogen fixation.
FT   CHAIN           1..92
FT                   /note="N(2)-fixation sustaining protein CowN"
FT                   /id="PRO_0000407271"
SQ   SEQUENCE   92 AA;  10932 MW;  5C139D6DEEB5FB23 CRC64;
     MSGSFDRYVS FKNSNWEVRS ERVMARLQKH IDAAENPFWA YFAQKRIELR EKQGLDDLRV
     LHNYLPTLRE LLEDNGDLET LAMLEELEVT LM