ID A0A1H1VCS2_9ACTN Unreviewed; 878 AA.
AC A0A1H1VCS2;
DT 18-JAN-2017, integrated into UniProtKB/TrEMBL.
DT 18-JAN-2017, sequence version 1.
DT 27-MAR-2024, entry version 31.
DE RecName: Full=assimilatory sulfite reductase (ferredoxin) {ECO:0000256|ARBA:ARBA00012353};
DE EC=1.8.7.1 {ECO:0000256|ARBA:ARBA00012353};
GN ORFNames=SAMN04489812_3145 {ECO:0000313|EMBL:SDS82206.1};
OS Microlunatus soli.
OC Bacteria; Actinomycetota; Actinomycetes; Propionibacteriales;
OC Propionibacteriaceae; Microlunatus.
OX NCBI_TaxID=630515 {ECO:0000313|EMBL:SDS82206.1, ECO:0000313|Proteomes:UP000199103};
RN [1] {ECO:0000313|EMBL:SDS82206.1, ECO:0000313|Proteomes:UP000199103}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 21800 {ECO:0000313|EMBL:SDS82206.1,
RC ECO:0000313|Proteomes:UP000199103};
RA de Groot N.N.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
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}.
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DR EMBL; LT629772; SDS82206.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1H1VCS2; -.
DR STRING; 630515.SAMN04489812_3145; -.
DR OrthoDB; 9768666at2; -.
DR UniPathway; UPA00653; -.
DR Proteomes; UP000199103; Chromosome i.
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; PR00411; PNDRDTASEI.
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:UP000199103};
KW Thioether bond {ECO:0000256|ARBA:ARBA00022784}.
FT DOMAIN 19..303
FT /note="FAD/NAD(P)-binding"
FT /evidence="ECO:0000259|Pfam:PF07992"
FT DOMAIN 336..400
FT /note="NADH-rubredoxin oxidoreductase C-terminal"
FT /evidence="ECO:0000259|Pfam:PF18267"
FT DOMAIN 434..482
FT /note="BFD-like [2Fe-2S]-binding"
FT /evidence="ECO:0000259|Pfam:PF04324"
FT DOMAIN 578..640
FT /note="Nitrite/Sulfite reductase ferredoxin-like"
FT /evidence="ECO:0000259|Pfam:PF03460"
FT DOMAIN 650..786
FT /note="Nitrite/sulphite reductase 4Fe-4S"
FT /evidence="ECO:0000259|Pfam:PF01077"
SQ SEQUENCE 878 AA; 93007 MW; 0DF415620466BAF3 CRC64;
MAAQLDDQDR RTPLTGAGRT IIVGGGPAAF RLVEALSSRG LAGRTVTVIG EEPVPPYDRV
NLAQRWQPDS DLQLGAPELW QADGVELRSA ERVTSIDPDR RSVTTESGET LGYDDLVLAT
GSSAWVPPVP GSDLDGVHIY RTIADVDRMR NHLDSLAGKE KPEALIIGGG LLGLEAAGGL
VKQGLGVRVV QSAPWLMPSQ LDEGGGQALG RLINRLGVPV HGDVRPELIE RSETGGFVIT
LSDGLRLSAD LVIFAVGIRP RDELARAAGL EIGPRGGVAV DRACRTSDRR IWAIGEVASL
PDRGCVGLVA PANTMAEVVA DRLLGGEATF PGVDDSTKLK LSGIDVAVFG DALSSTPDCL
DVVYADPARG VYQKLVMSDD GRTLLGGILV GDAAAYASLR PMVGRELGSE PASFLAAAGA
ELPGATALPD DAQVCSCNAV DAGTIKAAVH EQGCTDLAGV KSCTRAGTQC GSCVGLVQKL
MNAQLAAAGV EIGKAVCEHF AMSRSELFEA VRIAGLSSFT AIVDRFGSRS DDKPINRGCD
ICKPMVASIL ASQRGDYVLA DGRGTLQDTN DRALANMQRD GTYSVVPRIP GGEITPAKLK
VIAEVAEDFG LYTKITGGQR IDLFGARLDQ LPDIWQRLVE AGMESGHAYG KAVRTVKSCV
GSTWCRYGVQ DSVGMAVELE LRYRGLRSPH KIKLGVSGCA RECAEARSKD VGVIATDKGW
NLYVGGNGGF TPRHAELLVG DLSDEMLIKV IDRFVMYYVR TADRLQRTAA WIADLDGGLD
HLRDVVLNDA LGICADLEAA MADHVDNYAD EWAVTLSDPE KLRRFRGFVN APAGADASLT
RVNERGQWRP PLAHEQSRAV PYEAVLACGP TIPVGRPG
//
