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NRFA_SHEPC
ID   NRFA_SHEPC              Reviewed;         467 AA.
AC   A4Y382;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   29-MAY-2007, sequence version 1.
DT   03-AUG-2022, entry version 88.
DE   RecName: Full=Cytochrome c-552 {ECO:0000255|HAMAP-Rule:MF_01182};
DE            EC=1.7.2.2 {ECO:0000255|HAMAP-Rule:MF_01182};
DE   AltName: Full=Ammonia-forming cytochrome c nitrite reductase {ECO:0000255|HAMAP-Rule:MF_01182};
DE            Short=Cytochrome c nitrite reductase {ECO:0000255|HAMAP-Rule:MF_01182};
DE   Flags: Precursor;
GN   Name=nrfA {ECO:0000255|HAMAP-Rule:MF_01182};
GN   OrderedLocusNames=Sputcn32_0685;
OS   Shewanella putrefaciens (strain CN-32 / ATCC BAA-453).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Alteromonadales;
OC   Shewanellaceae; Shewanella.
OX   NCBI_TaxID=319224;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CN-32 / ATCC BAA-453;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA   Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Mikhailova N., Romine M.F., Fredrickson J.,
RA   Tiedje J., Richardson P.;
RT   "Complete sequence of Shewanella putrefaciens CN-32.";
RL   Submitted (APR-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the reduction of nitrite to ammonia, consuming six
CC       electrons in the process. {ECO:0000255|HAMAP-Rule:MF_01182}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=6 Fe(III)-[cytochrome c] + 2 H2O + NH4(+) = 6 Fe(II)-
CC         [cytochrome c] + 8 H(+) + nitrite; Xref=Rhea:RHEA:13089, Rhea:RHEA-
CC         COMP:10350, Rhea:RHEA-COMP:14399, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:16301, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:29033, ChEBI:CHEBI:29034; EC=1.7.2.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01182};
CC   -!- COFACTOR:
CC       Name=Ca(2+); Xref=ChEBI:CHEBI:29108;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01182};
CC       Note=Binds 1 Ca(2+) ion per monomer. {ECO:0000255|HAMAP-Rule:MF_01182};
CC   -!- COFACTOR:
CC       Name=heme c; Xref=ChEBI:CHEBI:61717;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01182};
CC       Note=Binds 5 heme c groups covalently per monomer. {ECO:0000255|HAMAP-
CC       Rule:MF_01182};
CC   -!- PATHWAY: Nitrogen metabolism; nitrate reduction (assimilation).
CC       {ECO:0000255|HAMAP-Rule:MF_01182}.
CC   -!- SUBCELLULAR LOCATION: Periplasm {ECO:0000255|HAMAP-Rule:MF_01182}.
CC   -!- SIMILARITY: Belongs to the cytochrome c-552 family. {ECO:0000255|HAMAP-
CC       Rule:MF_01182}.
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DR   EMBL; CP000681; ABP74415.1; -; Genomic_DNA.
DR   RefSeq; WP_011790735.1; NC_009438.1.
DR   AlphaFoldDB; A4Y382; -.
DR   SMR; A4Y382; -.
DR   STRING; 319224.Sputcn32_0685; -.
DR   GeneID; 45041121; -.
DR   KEGG; spc:Sputcn32_0685; -.
DR   eggNOG; COG3303; Bacteria.
DR   HOGENOM; CLU_035040_1_0_6; -.
DR   OMA; EMVILWA; -.
DR   UniPathway; UPA00653; -.
DR   GO; GO:0042597; C:periplasmic space; IEA:UniProtKB-SubCell.
DR   GO; GO:0005509; F:calcium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0042279; F:nitrite reductase (cytochrome, ammonia-forming) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0042128; P:nitrate assimilation; IEA:UniProtKB-UniPathway.
DR   CDD; cd00548; NrfA-like; 1.
DR   HAMAP; MF_01182; Cytochrom_C552; 1.
DR   InterPro; IPR003321; Cyt_c552.
DR   InterPro; IPR017570; Cyt_c_NO2Rdtase_formate-dep.
DR   InterPro; IPR036280; Multihaem_cyt_sf.
DR   PANTHER; PTHR30633; PTHR30633; 1.
DR   Pfam; PF02335; Cytochrom_C552; 1.
DR   PIRSF; PIRSF000243; Cyt_c552; 1.
DR   SUPFAM; SSF48695; SSF48695; 1.
DR   TIGRFAMs; TIGR03152; cyto_c552_HCOOH; 1.
DR   PROSITE; PS51008; MULTIHEME_CYTC; 1.
PE   3: Inferred from homology;
KW   Calcium; Electron transport; Heme; Iron; Metal-binding; Oxidoreductase;
KW   Periplasm; Signal; Transport.
FT   SIGNAL          1..27
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   CHAIN           28..467
FT                   /note="Cytochrome c-552"
FT                   /id="PRO_5000241225"
FT   BINDING         87
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="3"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         115
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_label="1"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         118
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_label="1"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         119
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_label="1"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         153
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="2"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         156
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="2"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         157
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="2"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         195
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="3"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         198
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="3"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         199
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="3"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         201
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         202
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         202
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         250
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         252
FT                   /ligand="Ca(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29108"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         253
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         264
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="5"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         271
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="4"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         274
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="4"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         275
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="4"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         290
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="2"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         303
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="5"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         306
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="5"
FT                   /note="covalent"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         307
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="5"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
FT   BINDING         382
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /ligand_label="4"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01182"
SQ   SEQUENCE   467 AA;  52289 MW;  053C8BE8A98B5798 CRC64;
     MMKKMTGKSF ALSALVAASF MAAGAMASDK TEPRNEVYKD KFKNQYNSWH DTAKSEELVD
     ALEQDPNMVI LWAGYPFAKD YKAPRGHMYA VTDVRNTLRT GAPKDAEDGP LPMACWSCKS
     PDVPRLIEEQ GEDGYFKGKW AKGGPEVTNA IGCGDCHDKG SPKLRISRPY VDRALDAIGT
     PFSKASKQDK ESMVCAQCHV EYYFEKTEDK KGFVKFPWDM GVTVEKMEVY YDSIQFSDWT
     HALSKAPMLK AQHPEYETWK MGIHGMNNVS CVDCHMPKVT SADGKKFTDH KVGNPFDRFE
     ETCATCHSQT KEFLVGVTNE RKAKVKEMKL KAEEQLVKAH FEAEAAWKAG ATEEEMKPIL
     TDIRHSQWRW DLAIASHGVA AHAPDEALRI LGTSVNKAAD ARVKLAQLLG KKGITDPVAV
     PDISTKAKAQ AVLGMDMKQL VEEKEAFKKN ILPKWDEEAK KREATYK
 
 
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