ID M7AFF0_9ACTN Unreviewed; 866 AA.
AC M7AFF0;
DT 29-MAY-2013, integrated into UniProtKB/TrEMBL.
DT 09-DEC-2015, sequence version 2.
DT 27-MAR-2024, entry version 47.
DE RecName: Full=assimilatory sulfite reductase (ferredoxin) {ECO:0000256|ARBA:ARBA00012353};
DE EC=1.8.7.1 {ECO:0000256|ARBA:ARBA00012353};
GN ORFNames=ISGA_5050 {ECO:0000313|EMBL:EMP12805.2};
OS Gordonia sp. NB41Y.
OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Gordoniaceae;
OC Gordonia.
OX NCBI_TaxID=875808 {ECO:0000313|EMBL:EMP12805.2, ECO:0000313|Proteomes:UP000011989};
RN [1] {ECO:0000313|EMBL:EMP12805.2, ECO:0000313|Proteomes:UP000011989}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NB4-1Y {ECO:0000313|EMBL:EMP12805.2,
RC ECO:0000313|Proteomes:UP000011989};
RX PubMed=23744905; DOI=10.1099/mic.0.068932-0;
RA Van Hamme J.D., Bottos E.M., Bilbey N.J., Brewer S.E.;
RT "Genomic and proteomic characterization of Gordonia sp. NB4-1Y in relation
RT to 6 : 2 fluorotelomer sulfonate biodegradation.";
RL Microbiology 159:1618-1628(2013).
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:EMP12805.2}.
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DR EMBL; APHK02000086; EMP12805.2; -; Genomic_DNA.
DR RefSeq; WP_053778117.1; NZ_CP132196.1.
DR AlphaFoldDB; M7AFF0; -.
DR STRING; 1241906.ISGA_5050; -.
DR OrthoDB; 9768666at2; -.
DR UniPathway; UPA00653; -.
DR Proteomes; UP000011989; 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; 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:UP000011989};
KW Thioether bond {ECO:0000256|ARBA:ARBA00022784}.
FT DOMAIN 12..295
FT /note="FAD/NAD(P)-binding"
FT /evidence="ECO:0000259|Pfam:PF07992"
FT DOMAIN 329..396
FT /note="NADH-rubredoxin oxidoreductase C-terminal"
FT /evidence="ECO:0000259|Pfam:PF18267"
FT DOMAIN 428..475
FT /note="BFD-like [2Fe-2S]-binding"
FT /evidence="ECO:0000259|Pfam:PF04324"
FT DOMAIN 560..621
FT /note="Nitrite/Sulfite reductase ferredoxin-like"
FT /evidence="ECO:0000259|Pfam:PF03460"
FT DOMAIN 632..768
FT /note="Nitrite/sulphite reductase 4Fe-4S"
FT /evidence="ECO:0000259|Pfam:PF01077"
SQ SEQUENCE 866 AA; 90765 MW; 907BE656A31A6940 CRC64;
MTKGTEMNTS RTVVVAGHGM VGHRFVQEMR RRDTDGTWRV VVIGEEAEPA YDRVGLSSYV
GEWDRTALAL SGNTYDGDVV VESLLGETVT SVDRAGRRVV TDSGRTVDYD ALVLATGSYP
FVPPVSGHDH EKCFVYRTLD DLDGIRAVAE VAGPGAVGVV VGGGLLGLEA ANALRLLGMT
PHVVEFAPRL MPMQVDDGGG AVLANLVTDL GLHVHTGVGT SAIADNGTGG VSVTLSDESV
IDAALVVFSA GVRPRDQLAR DAGLAVGERG GVLVDTGCRT DDPDIFAIGE VAAVEGRCYG
LVAPGYSTAE VVAEQLLGGA AEFPGADMST KLKLLGVDVA SFGDAMGTTE NALEIVYSDP
VAGKYAKVVI SDDASTLLGG ILVGDASAYA MLKPMVGRAI PGDPAALITP AGGGAGVGID
ALPDDAEICS CNGVSKGTIC SAIAEGACDI AAIKGCTSAG TTCGGCVPSI KALLEASGVQ
LSKSLCEHFT QSRAELFEIV AVTGIRTFSE LIERYGAGSG CEICKPTVAS ILASTSSDHI
LDGEQAGLQD TNDHFLANMQ KNGSYSVVPR MPGGEVTPEQ LIVIGEIARD FDLYTKITGG
QRIDLFGARV DQLPEIWRRL VDAGMESGHA YGKSLRTVKS CVGSTWCRYG VQDSVGMAVF
LEKRYRGLRS PHKLKFGVSG CARECAEARG KDVGVIATEH GWNLYVAGNG GQTPKHAQLL
AGGVDDETLV AYIDRYLMFY IRTADRLQRT APWLESLEGG LDHLKAVVCD DSLGLAAELE
AAMELHVAGY RDEWAAVLED EDKLKRFVSF VNAPEVSDPT IRFTEGDERK VPVLLDLPTV
RSASVGAGVL VESAGTDVPL ESEGVR
//
