ID A3TG06_9MICO Unreviewed; 858 AA.
AC A3TG06;
DT 03-APR-2007, integrated into UniProtKB/TrEMBL.
DT 03-APR-2007, sequence version 1.
DT 27-MAR-2024, entry version 94.
DE RecName: Full=assimilatory sulfite reductase (ferredoxin) {ECO:0000256|ARBA:ARBA00012353};
DE EC=1.8.7.1 {ECO:0000256|ARBA:ARBA00012353};
GN ORFNames=JNB_06344 {ECO:0000313|EMBL:EAP99766.1};
OS Janibacter sp. HTCC2649.
OC Bacteria; Actinomycetota; Actinomycetes; Micrococcales; Intrasporangiaceae;
OC Janibacter.
OX NCBI_TaxID=313589 {ECO:0000313|EMBL:EAP99766.1, ECO:0000313|Proteomes:UP000005063};
RN [1] {ECO:0000313|EMBL:EAP99766.1, ECO:0000313|Proteomes:UP000005063}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=HTCC2649 {ECO:0000313|EMBL:EAP99766.1,
RC ECO:0000313|Proteomes:UP000005063};
RX PubMed=21075932; DOI=10.1128/JB.01298-10;
RA Thrash J.C., Cho J.C., Bertagnolli A.D., Ferriera S., Johnson J.,
RA Vergin K.L., Giovannoni S.J.;
RT "Genome sequence of the Marine Janibacter Sp. Strain HTCC2649.";
RL J. Bacteriol. 193:584-585(2011).
CC -!- FUNCTION: Catalyzes the reduction of sulfite to sulfide, a step in the
CC biosynthesis of sulfur-containing amino acids and cofactors.
CC {ECO:0000256|ARBA:ARBA00003247}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=3 H2O + hydrogen sulfide + 6 oxidized [2Fe-2S]-[ferredoxin] =
CC 7 H(+) + 6 reduced [2Fe-2S]-[ferredoxin] + sulfite;
CC Xref=Rhea:RHEA:23132, Rhea:RHEA-COMP:10000, Rhea:RHEA-COMP:10001,
CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:17359,
CC ChEBI:CHEBI:29919, ChEBI:CHEBI:33737, ChEBI:CHEBI:33738; EC=1.8.7.1;
CC Evidence={ECO:0000256|ARBA:ARBA00000993};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000256|ARBA:ARBA00001974,
CC ECO:0000256|PIRNR:PIRNR037149};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|ARBA:ARBA00001966};
CC -!- COFACTOR:
CC Name=siroheme; Xref=ChEBI:CHEBI:60052;
CC Evidence={ECO:0000256|ARBA:ARBA00001929};
CC -!- PATHWAY: Nitrogen metabolism; nitrate reduction (assimilation).
CC {ECO:0000256|ARBA:ARBA00005096}.
CC -!- SIMILARITY: Belongs to the nitrite and sulfite reductase 4Fe-4S domain
CC family. {ECO:0000256|ARBA:ARBA00010429}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:EAP99766.1}.
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DR EMBL; AAMN01000001; EAP99766.1; -; Genomic_DNA.
DR RefSeq; WP_009775573.1; NZ_CH672413.1.
DR AlphaFoldDB; A3TG06; -.
DR STRING; 313589.JNB_06344; -.
DR eggNOG; COG1251; Bacteria.
DR HOGENOM; CLU_003291_0_0_11; -.
DR OrthoDB; 9768666at2; -.
DR UniPathway; UPA00653; -.
DR Proteomes; UP000005063; Unassembled WGS sequence.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:UniProtKB-UniRule.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0051536; F:iron-sulfur cluster binding; IEA:InterPro.
DR GO; GO:0050661; F:NADP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0008942; F:nitrite reductase [NAD(P)H] activity; IEA:UniProtKB-UniRule.
DR GO; GO:0050311; F:sulfite reductase (ferredoxin) activity; IEA:UniProtKB-EC.
DR GO; GO:0042128; P:nitrate assimilation; IEA:UniProtKB-UniRule.
DR CDD; cd19943; NirB_Fer2_BFD-like_1; 1.
DR CDD; cd19944; NirB_Fer2_BFD-like_2; 1.
DR Gene3D; 3.30.390.30; -; 1.
DR Gene3D; 1.10.10.1100; BFD-like [2Fe-2S]-binding domain; 1.
DR Gene3D; 3.50.50.60; FAD/NAD(P)-binding domain; 2.
DR Gene3D; 3.30.413.10; Sulfite Reductase Hemoprotein, domain 1; 1.
DR InterPro; IPR007419; BFD-like_2Fe2S-bd_dom.
DR InterPro; IPR041854; BFD-like_2Fe2S-bd_dom_sf.
DR InterPro; IPR036188; FAD/NAD-bd_sf.
DR InterPro; IPR023753; FAD/NAD-binding_dom.
DR InterPro; IPR016156; FAD/NAD-linked_Rdtase_dimer_sf.
DR InterPro; IPR005117; NiRdtase/SiRdtase_haem-b_fer.
DR InterPro; IPR036136; Nit/Sulf_reduc_fer-like_dom_sf.
DR InterPro; IPR012744; Nitri_red_NirB.
DR InterPro; IPR017121; Nitrite_Rdtase_lsu.
DR InterPro; IPR006067; NO2/SO3_Rdtase_4Fe4S_dom.
DR InterPro; IPR045854; NO2/SO3_Rdtase_4Fe4S_sf.
DR InterPro; IPR006066; NO2/SO3_Rdtase_FeS/sirohaem_BS.
DR InterPro; IPR041575; Rubredoxin_C.
DR NCBIfam; TIGR02374; nitri_red_nirB; 1.
DR PANTHER; PTHR43809; NITRITE REDUCTASE (NADH) LARGE SUBUNIT; 1.
DR PANTHER; PTHR43809:SF1; NITRITE REDUCTASE (NADH) LARGE SUBUNIT; 1.
DR Pfam; PF04324; Fer2_BFD; 1.
DR Pfam; PF01077; NIR_SIR; 1.
DR Pfam; PF03460; NIR_SIR_ferr; 1.
DR Pfam; PF07992; Pyr_redox_2; 1.
DR Pfam; PF18267; Rubredoxin_C; 1.
DR PIRSF; PIRSF037149; NirB; 1.
DR PRINTS; PR00368; FADPNR.
DR PRINTS; PR00397; SIROHAEM.
DR SUPFAM; SSF51905; FAD/NAD(P)-binding domain; 2.
DR SUPFAM; SSF56014; Nitrite and sulphite reductase 4Fe-4S domain-like; 1.
DR SUPFAM; SSF55124; Nitrite/Sulfite reductase N-terminal domain-like; 1.
DR PROSITE; PS00365; NIR_SIR; 1.
PE 3: Inferred from homology;
KW FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|PIRNR:PIRNR037149};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630,
KW ECO:0000256|PIRNR:PIRNR037149}; Heme {ECO:0000256|ARBA:ARBA00022617};
KW Iron {ECO:0000256|ARBA:ARBA00023004};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Nitrate assimilation {ECO:0000256|ARBA:ARBA00023063,
KW ECO:0000256|PIRNR:PIRNR037149};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002};
KW Reference proteome {ECO:0000313|Proteomes:UP000005063};
KW Thioether bond {ECO:0000256|ARBA:ARBA00022784}.
FT DOMAIN 9..293
FT /note="FAD/NAD(P)-binding"
FT /evidence="ECO:0000259|Pfam:PF07992"
FT DOMAIN 330..394
FT /note="NADH-rubredoxin oxidoreductase C-terminal"
FT /evidence="ECO:0000259|Pfam:PF18267"
FT DOMAIN 427..475
FT /note="BFD-like [2Fe-2S]-binding"
FT /evidence="ECO:0000259|Pfam:PF04324"
FT DOMAIN 565..626
FT /note="Nitrite/Sulfite reductase ferredoxin-like"
FT /evidence="ECO:0000259|Pfam:PF03460"
FT DOMAIN 637..773
FT /note="Nitrite/sulphite reductase 4Fe-4S"
FT /evidence="ECO:0000259|Pfam:PF01077"
SQ SEQUENCE 858 AA; 90817 MW; 4B1EE9D210B6B80A CRC64;
MLQAPDTKQL VVVGGGMVAR RLIDALRSRD ESGQWAVTLL CEEPRAPYDR VALTSYFTGR
HPEELALGGQ EIWDDPLVTL KRGVKADSID REGRTVTTNG GAVLPYDALV LATGSYAAVP
PVPGKDLRGA FVYRTIDDVA DLRAYVEKRR EELDRPVRGA VVGGGLLGLE AAGALQALEV
ESTVVEFAPR LMPLQVDEGG GEGLKRLIEG LGVSVRTSTA TSKIVGDRGT VSRMEFADGP
ALDVDVVIFA VGVRPRDELA RESGLEVGER GGVIVDDACA TADPAIWAIG EVANIGGRCL
GLVAPGYTMA EIVADRLLGG EGTFPGADLS TKLKLLGVDV ASFGDAFAQE PGNLEVVISD
PVGGVYKKLV MSDDARTLRG GILVGDASAY AALRPMVGRE LGGDPAAYLL PEGASAAPMG
ELPEDATVCS CNNVTAGAIR CSVTEGDCTD LAGVKACTLA GTSCGSCLPL VKKIVTTELE
KSGIEVSKAL CEHFDLSRAQ LFDVVRIQEL ATFSDIIATH GRGRGCDICK PVIGSILASL
GTGHILEGER ATLQDTNDHV MANLQKDGSY SVVPRIPGGE ITPEGLIVIG EVAKDFGLYT
KITGGQRIDL FGARIDQLPK IWTRLVDAGF ESGHAYGKSL RTVKSCVGST WCRYGVQDSV
GLAIALELRY RGLRSPHKIK LGVSGCAREC AEARGKDVGI IATDNGWNLY VGGNGGFTPK
HAQLLAEDLD TETLVQAIDR FLMFYVRTAD RLQRTAAWVD DYEGGLDAIR AVVLDDSLGI
AADLDAAMVT HVDGYEDEWA AALADPEKLR RFGSFVNAPD HADDSLAYVA ERGQARPATP
DERTSGVLIA GTTLEVRR
//
