NOSO_STAAR
ID NOSO_STAAR Reviewed; 358 AA.
AC Q6GFE2;
DT 01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 19-JUL-2004, sequence version 1.
DT 03-AUG-2022, entry version 95.
DE RecName: Full=Nitric oxide synthase oxygenase;
DE EC=1.14.14.47 {ECO:0000250|UniProtKB:O34453};
DE AltName: Full=NOSoxy-like protein;
DE AltName: Full=SANOS;
GN Name=nos; OrderedLocusNames=SAR2007;
OS Staphylococcus aureus (strain MRSA252).
OC Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC Staphylococcus.
OX NCBI_TaxID=282458;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MRSA252;
RX PubMed=15213324; DOI=10.1073/pnas.0402521101;
RA Holden M.T.G., Feil E.J., Lindsay J.A., Peacock S.J., Day N.P.J.,
RA Enright M.C., Foster T.J., Moore C.E., Hurst L., Atkin R., Barron A.,
RA Bason N., Bentley S.D., Chillingworth C., Chillingworth T., Churcher C.,
RA Clark L., Corton C., Cronin A., Doggett J., Dowd L., Feltwell T., Hance Z.,
RA Harris B., Hauser H., Holroyd S., Jagels K., James K.D., Lennard N.,
RA Line A., Mayes R., Moule S., Mungall K., Ormond D., Quail M.A.,
RA Rabbinowitsch E., Rutherford K.M., Sanders M., Sharp S., Simmonds M.,
RA Stevens K., Whitehead S., Barrell B.G., Spratt B.G., Parkhill J.;
RT "Complete genomes of two clinical Staphylococcus aureus strains: evidence
RT for the rapid evolution of virulence and drug resistance.";
RL Proc. Natl. Acad. Sci. U.S.A. 101:9786-9791(2004).
CC -!- FUNCTION: Catalyzes the production of nitric oxide. {ECO:0000250,
CC ECO:0000250|UniProtKB:O34453}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 L-arginine + 4 O2 + 3 reduced [flavodoxin] = 5 H(+) + 4 H2O
CC + 2 L-citrulline + 2 nitric oxide + 3 oxidized [flavodoxin];
CC Xref=Rhea:RHEA:52324, Rhea:RHEA-COMP:10622, Rhea:RHEA-COMP:10623,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:15379,
CC ChEBI:CHEBI:16480, ChEBI:CHEBI:32682, ChEBI:CHEBI:57618,
CC ChEBI:CHEBI:57743, ChEBI:CHEBI:58210; EC=1.14.14.47;
CC Evidence={ECO:0000250|UniProtKB:O34453};
CC -!- COFACTOR:
CC Name=heme; Xref=ChEBI:CHEBI:30413;
CC Evidence={ECO:0000250|UniProtKB:O34453};
CC -!- COFACTOR:
CC Name=(6S)-5,6,7,8-tetrahydrofolate; Xref=ChEBI:CHEBI:57453;
CC Evidence={ECO:0000250|UniProtKB:O34453};
CC -!- SUBUNIT: Homodimer. {ECO:0000250|UniProtKB:O34453}.
CC -!- MISCELLANEOUS: This protein is similar to the oxygenase domain of
CC eukaryotic nitric oxide synthases but lacks the reductase domain which,
CC in eukaryotes, is responsible for transfer of electrons to the ferric
CC heme during nitric oxide synthesis.
CC -!- SIMILARITY: Belongs to the NOS family. Bacterial NOS oxygenase
CC subfamily. {ECO:0000305}.
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DR EMBL; BX571856; CAG40992.1; -; Genomic_DNA.
DR RefSeq; WP_000897633.1; NC_002952.2.
DR AlphaFoldDB; Q6GFE2; -.
DR SMR; Q6GFE2; -.
DR KEGG; sar:SAR2007; -.
DR HOGENOM; CLU_040293_0_0_9; -.
DR OMA; IWNHQLI; -.
DR OrthoDB; 1223596at2; -.
DR PHI-base; PHI:3285; -.
DR Proteomes; UP000000596; Chromosome.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004517; F:nitric-oxide synthase activity; IEA:InterPro.
DR GO; GO:0006809; P:nitric oxide biosynthetic process; IEA:InterPro.
DR Gene3D; 3.90.1230.10; -; 1.
DR Gene3D; 3.90.340.10; -; 1.
DR Gene3D; 3.90.440.10; -; 1.
DR InterPro; IPR017142; Nitric_oxide_synthase_Oase-su.
DR InterPro; IPR044943; NOS_dom_1.
DR InterPro; IPR044940; NOS_dom_2.
DR InterPro; IPR044944; NOS_dom_3.
DR InterPro; IPR004030; NOS_N.
DR InterPro; IPR036119; NOS_N_sf.
DR Pfam; PF02898; NO_synthase; 1.
DR PIRSF; PIRSF037219; NOS_oxygenase; 1.
DR SUPFAM; SSF56512; SSF56512; 1.
DR PROSITE; PS60001; NOS; 1.
PE 3: Inferred from homology;
KW Heme; Iron; Metal-binding; Oxidoreductase.
FT CHAIN 1..358
FT /note="Nitric oxide synthase oxygenase"
FT /id="PRO_0000170958"
FT BINDING 62
FT /ligand="heme"
FT /ligand_id="ChEBI:CHEBI:30413"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000250"
SQ SEQUENCE 358 AA; 41709 MW; 314C01C0432FDAFE CRC64;
MLFKEAQAFI ENMYKECHYE TQIINKRLHD IELEIKETGT YTHTEEELIY GAKMAWRNSN
RCIGRLFWDS LNVIDARDVT DEASFLSSIN YHIAQATNEG KLKPYITIYA PKDGPKIFNN
QLIRYAGYDN CGDPAEKEVT RLANHLGWKG KGTNFDVLPL IYQLPNESVK YYEYPTSLIK
EVPIEHDHYP KLRKLNLKWY AVPIISNMDL KIGGIVYPTA PFNGWYMVTE IGVRNFIDDY
RYNLLEKVAD AFEFDTLKNN SFNKDRALVE LNYAVYHSFK KEGVSIVDHL TAAKQFELFE
RNEAQQGRQV TGKWSWLAPP LSPTLTSNYH HGYDNTVKDP NFFYKKKKSN ANQCPFHH