NOSZ_RHIME
ID NOSZ_RHIME Reviewed; 639 AA.
AC Q59746;
DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1996, sequence version 1.
DT 03-AUG-2022, entry version 135.
DE RecName: Full=Nitrous-oxide reductase;
DE EC=1.7.2.4;
DE AltName: Full=N(2)OR;
DE AltName: Full=N2O reductase;
DE Flags: Precursor;
GN Name=nosZ; OrderedLocusNames=RA0643; ORFNames=SMa1182;
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=JJ1c10;
RX PubMed=8626275; DOI=10.1128/jb.178.6.1505-1514.1996;
RA Holloway P., McCormick W., Watson R.J., Chan Y.K.;
RT "Identification and analysis of the dissimilatory nitrous oxide reduction
RT genes, nosRZDFY, of Rhizobium meliloti.";
RL J. Bacteriol. 178:1505-1514(1996).
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).
CC -!- FUNCTION: Nitrous-oxide reductase is part of a bacterial respiratory
CC system which is activated under anaerobic conditions in the presence of
CC nitrate or nitrous oxide.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 Fe(III)-[cytochrome c] + H2O + N2 = 2 Fe(II)-[cytochrome c]
CC + 2 H(+) + nitrous oxide; Xref=Rhea:RHEA:43108, Rhea:RHEA-COMP:10350,
CC Rhea:RHEA-COMP:14399, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:17045, ChEBI:CHEBI:17997, ChEBI:CHEBI:29033,
CC ChEBI:CHEBI:29034; EC=1.7.2.4;
CC -!- COFACTOR:
CC Name=Ca(2+); Xref=ChEBI:CHEBI:29108; Evidence={ECO:0000250};
CC Note=Binds 2 calcium ions per subunit. {ECO:0000250};
CC -!- COFACTOR:
CC Name=Cu cation; Xref=ChEBI:CHEBI:23378; Evidence={ECO:0000250};
CC Note=Binds 6 Cu cations per subunit. Each subunit contains 2 copper
CC centers; Cu(A) (binuclear) and Cu(Z) (tetranuclear). Cu(Z) is thought
CC to be the site of nitrous oxide reduction. {ECO:0000250};
CC -!- PATHWAY: Nitrogen metabolism; nitrate reduction (denitrification);
CC dinitrogen from nitrate: step 4/4.
CC -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000250}.
CC -!- PTM: Predicted to be exported by the Tat system. The position of the
CC signal peptide cleavage has not been experimentally proven.
CC -!- SIMILARITY: Belongs to the NosZ family. {ECO:0000305}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the cytochrome c
CC oxidase subunit 2 family. {ECO:0000305}.
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DR EMBL; U47133; AAC44023.1; -; Genomic_DNA.
DR EMBL; AE006469; AAK65301.1; -; Genomic_DNA.
DR PIR; C95342; C95342.
DR RefSeq; NP_435889.1; NC_003037.1.
DR RefSeq; WP_010967622.1; NC_003037.1.
DR AlphaFoldDB; Q59746; -.
DR SMR; Q59746; -.
DR EnsemblBacteria; AAK65301; AAK65301; SMa1182.
DR GeneID; 61599412; -.
DR KEGG; sme:SMa1182; -.
DR PATRIC; fig|266834.11.peg.663; -.
DR HOGENOM; CLU_016420_0_0_5; -.
DR OMA; HQEMQGY; -.
DR UniPathway; UPA00652; UER00709.
DR Proteomes; UP000001976; Plasmid pSymA.
DR GO; GO:0016020; C:membrane; IEA:InterPro.
DR GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
DR GO; GO:0005509; F:calcium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0005507; F:copper ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004129; F:cytochrome-c oxidase activity; IEA:InterPro.
DR GO; GO:0050304; F:nitrous-oxide reductase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0019333; P:denitrification pathway; IEA:UniProtKB-UniPathway.
DR CDD; cd04223; N2OR_C; 1.
DR Gene3D; 2.130.10.10; -; 1.
DR Gene3D; 2.60.40.420; -; 1.
DR HAMAP; MF_00716; NosZ; 1.
DR InterPro; IPR002429; CcO_II-like_C.
DR InterPro; IPR008972; Cupredoxin.
DR InterPro; IPR028096; EfeO_Cupredoxin.
DR InterPro; IPR011045; N2O_reductase_N.
DR InterPro; IPR034205; N2OR_C.
DR InterPro; IPR023644; NO_Rdtase.
DR InterPro; IPR041114; Nos_propeller.
DR InterPro; IPR041142; NOS_propeller_2.
DR InterPro; IPR006311; TAT_signal.
DR InterPro; IPR015943; WD40/YVTN_repeat-like_dom_sf.
DR Pfam; PF13473; Cupredoxin_1; 1.
DR Pfam; PF18764; nos_propeller; 1.
DR Pfam; PF18793; nos_propeller_2; 1.
DR SUPFAM; SSF49503; SSF49503; 1.
DR SUPFAM; SSF50974; SSF50974; 1.
DR TIGRFAMs; TIGR04244; nitrous_NosZ_RR; 1.
DR PROSITE; PS50857; COX2_CUA; 1.
DR PROSITE; PS51318; TAT; 1.
PE 3: Inferred from homology;
KW Calcium; Copper; Metal-binding; Oxidoreductase; Periplasm; Plasmid;
KW Reference proteome; Signal.
FT SIGNAL 1..46
FT /note="Tat-type signal"
FT /evidence="ECO:0000255"
FT CHAIN 47..639
FT /note="Nitrous-oxide reductase"
FT /id="PRO_0000019833"
FT REGION 541..639
FT /note="COX2-like"
FT BINDING 136
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="Z2"
FT /evidence="ECO:0000250"
FT BINDING 137
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="Z3"
FT /evidence="ECO:0000250"
FT BINDING 185
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="Z2"
FT /evidence="ECO:0000250"
FT BINDING 262
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 265
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 273
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 279
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 324
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 326
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="Z1"
FT /evidence="ECO:0000250"
FT BINDING 381
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="Z1"
FT /evidence="ECO:0000250"
FT BINDING 432
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="Z3"
FT /evidence="ECO:0000250"
FT BINDING 453
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 468
FT /ligand="Ca(2+)"
FT /ligand_id="ChEBI:CHEBI:29108"
FT /ligand_label="1"
FT /evidence="ECO:0000250"
FT BINDING 493
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="Z4"
FT /evidence="ECO:0000250"
FT BINDING 582
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="A1"
FT /evidence="ECO:0000250"
FT BINDING 617
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="A1"
FT /evidence="ECO:0000250"
FT BINDING 617
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="A2"
FT /evidence="ECO:0000250"
FT BINDING 619
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="A2"
FT /evidence="ECO:0000250"
FT BINDING 621
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="A1"
FT /evidence="ECO:0000250"
FT BINDING 621
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="A2"
FT /evidence="ECO:0000250"
FT BINDING 625
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="A2"
FT /evidence="ECO:0000250"
FT BINDING 628
FT /ligand="Cu cation"
FT /ligand_id="ChEBI:CHEBI:23378"
FT /ligand_label="A1"
FT /evidence="ECO:0000250"
SQ SEQUENCE 639 AA; 70760 MW; EBCF5EDFAFF70B96 CRC64;
MSNEETKMRL NRRQMLGTTA FMAAAGAVGA GGALTLSGGT ATPARAQETS GSSYEVKPGE
LDEYYVFFSS GQSGEIRIVG APSMREMMRI PVFNRCSATG WGQTNESRKV MTEGLLPETV
EFLKDQGGLY LNGDLHHPHP SFTDGTYDGR YLYANDKSNS RVCRIRLDVM KCDKIIQLPN
QHTVHGLRVQ KYPKTGYVFC NGEDAVPVPN DGKTMGDKNS YQAIFTAVDG ETMEVAWQVM
VDGNLDNVDA DYQGKYCFAT CYNSEEGFTL ADMMASEQDW VVIFNLKRIE EAVAKGDYKE
IGGVPVLDGR KGSPYTRYVP VPNSPHGINT APDGIHVVAN GKLSPTVTVF DVRKFDDLFD
DKIQARDTVV AEPELGLGPL HTAYDGKGNA YTTLFIDSQV CKWNIEDAKR AYAGEKVDPI
RHKLDVHYQP GHNHTSMGQT KEADGKWLIS LNKFSKDRYL NVGPLKPEND QLIDISGDEM
VLVHDNPTFA EPHDATIVHA SKINPVHVWN RDDPFFADAV AQAKADNIDL MVDSEVIRDG
NKVRVYMTSA APAFGLDDFT VKQGDEVTVY VTNIDEVEDL THGFCIVNYG INMEVAPQAT
ASVTFKASRP GVYWYYCTWF CHAMHMEMKG RMLVEAQGA
