ID   COWN_XANP2              Reviewed;         109 AA.
AC   A7IIE0;
DT   05-APR-2011, integrated into UniProtKB/Swiss-Prot.
DT   11-SEP-2007, sequence version 1.
DT   25-MAY-2022, entry version 57.
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=Xaut_2541;
OS   Xanthobacter autotrophicus (strain ATCC BAA-1158 / Py2).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Xanthobacteraceae; Xanthobacter.
OX   NCBI_TaxID=78245;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-1158 / Py2;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Hammon N.,
RA   Israni S., Dalin E., Tice H., Pitluck S., Sims D., Brettin T., Bruce D.,
RA   Detter J.C., Han C., Tapia R., Brainard J., Schmutz J., Larimer F.,
RA   Land M., Hauser L., Kyrpides N., Kim E., Ensigns S.A., Richardson P.;
RT   "Complete sequence of chromosome of Xanthobacter autotrophicus Py2.";
RL   Submitted (JUL-2007) 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; CP000781; ABS67783.1; -; Genomic_DNA.
DR   RefSeq; WP_012114561.1; NC_009720.1.
DR   AlphaFoldDB; A7IIE0; -.
DR   STRING; 78245.Xaut_2541; -.
DR   EnsemblBacteria; ABS67783; ABS67783; Xaut_2541.
DR   KEGG; xau:Xaut_2541; -.
DR   eggNOG; ENOG5032SZ8; Bacteria.
DR   HOGENOM; CLU_149349_0_0_5; -.
DR   OMA; IDCDGNA; -.
DR   OrthoDB; 1880419at2; -.
DR   PhylomeDB; A7IIE0; -.
DR   Proteomes; UP000002417; 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; Reference proteome.
FT   CHAIN           1..109
FT                   /note="N(2)-fixation sustaining protein CowN"
FT                   /id="PRO_0000407276"
SQ   SEQUENCE   109 AA;  12638 MW;  145F692D9632BEEC CRC64;
     MDQPAAGFPA LHFELEQPDR YLTFQGIDFE GNMRRVLAHL YRYIDDPAHG NAFWDRFKAR
     LQAAEAGAAT ICDKLLLLHS HVYYMVDLFE EQEDEIALAD LKTLEEECF