ID F4CBX6_SPHS2 Unreviewed; 199 AA.
AC F4CBX6;
DT 28-JUN-2011, integrated into UniProtKB/TrEMBL.
DT 28-JUN-2011, sequence version 1.
DT 27-MAR-2024, entry version 63.
DE RecName: Full=FMN dependent NADH:quinone oxidoreductase {ECO:0000256|HAMAP-Rule:MF_01216};
DE EC=1.6.5.- {ECO:0000256|HAMAP-Rule:MF_01216};
DE AltName: Full=Azo-dye reductase {ECO:0000256|HAMAP-Rule:MF_01216};
DE AltName: Full=FMN-dependent NADH-azo compound oxidoreductase {ECO:0000256|HAMAP-Rule:MF_01216};
DE AltName: Full=FMN-dependent NADH-azoreductase {ECO:0000256|HAMAP-Rule:MF_01216};
DE EC=1.7.1.17 {ECO:0000256|HAMAP-Rule:MF_01216};
GN Name=azoR {ECO:0000256|HAMAP-Rule:MF_01216};
GN OrderedLocusNames=Sph21_4746 {ECO:0000313|EMBL:ADZ81253.1};
OS Sphingobacterium sp. (strain 21).
OC Bacteria; Bacteroidota; Sphingobacteriia; Sphingobacteriales;
OC Sphingobacteriaceae; Sphingobacterium.
OX NCBI_TaxID=743722 {ECO:0000313|EMBL:ADZ81253.1};
RN [1] {ECO:0000313|EMBL:ADZ81253.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=21 {ECO:0000313|EMBL:ADZ81253.1};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S.,
RA Davenport K., Detter J.C., Han C., Tapia R., Land M., Hauser L.,
RA Kyrpides N., Ivanova N., Ovchinnikova G., Pagani I., Siebers A.K.,
RA Allgaier M., Thelen M.P., Hugenholtz P., Woyke T.;
RT "Complete sequence of Sphingobacterium sp. 21.";
RL Submitted (MAR-2011) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Also exhibits azoreductase activity. Catalyzes the reductive
CC cleavage of the azo bond in aromatic azo compounds to the corresponding
CC amines. {ECO:0000256|HAMAP-Rule:MF_01216}.
CC -!- FUNCTION: Quinone reductase that provides resistance to thiol-specific
CC stress caused by electrophilic quinones. {ECO:0000256|HAMAP-
CC Rule:MF_01216}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=2 a quinone + H(+) + NADH = 2 a 1,4-benzosemiquinone + NAD(+);
CC Xref=Rhea:RHEA:65952, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57945, ChEBI:CHEBI:132124, ChEBI:CHEBI:134225;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01216};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=anthranilate + N,N-dimethyl-1,4-phenylenediamine + 2 NAD(+) =
CC 2-(4-dimethylaminophenyl)diazenylbenzoate + 2 H(+) + 2 NADH;
CC Xref=Rhea:RHEA:55872, ChEBI:CHEBI:15378, ChEBI:CHEBI:15783,
CC ChEBI:CHEBI:16567, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945,
CC ChEBI:CHEBI:71579; EC=1.7.1.17;
CC Evidence={ECO:0000256|ARBA:ARBA00023925};
CC PhysiologicalDirection=right-to-left; Xref=Rhea:RHEA:55874;
CC Evidence={ECO:0000256|ARBA:ARBA00023925};
CC -!- COFACTOR:
CC Name=FMN; Xref=ChEBI:CHEBI:58210;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_01216};
CC Note=Binds 1 FMN per subunit. {ECO:0000256|HAMAP-Rule:MF_01216};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01216}.
CC -!- SIMILARITY: Belongs to the azoreductase type 1 family.
CC {ECO:0000256|HAMAP-Rule:MF_01216}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP002584; ADZ81253.1; -; Genomic_DNA.
DR AlphaFoldDB; F4CBX6; -.
DR STRING; 743722.Sph21_4746; -.
DR KEGG; shg:Sph21_4746; -.
DR PATRIC; fig|743722.3.peg.5041; -.
DR eggNOG; COG1182; Bacteria.
DR HOGENOM; CLU_088964_0_0_10; -.
DR OrthoDB; 9805013at2; -.
DR GO; GO:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule.
DR GO; GO:0010181; F:FMN binding; IEA:UniProtKB-UniRule.
DR GO; GO:0016652; F:oxidoreductase activity, acting on NAD(P)H, NAD(P) as acceptor; IEA:UniProtKB-UniRule.
DR GO; GO:0016655; F:oxidoreductase activity, acting on NAD(P)H, quinone or similar compound as acceptor; IEA:InterPro.
DR Gene3D; 3.40.50.360; -; 1.
DR HAMAP; MF_01216; Azoreductase_type1; 1.
DR InterPro; IPR003680; Flavodoxin_fold.
DR InterPro; IPR029039; Flavoprotein-like_sf.
DR InterPro; IPR023048; NADH:quinone_OxRdtase_FMN_depd.
DR PANTHER; PTHR43741; FMN-DEPENDENT NADH-AZOREDUCTASE 1; 1.
DR PANTHER; PTHR43741:SF2; FMN-DEPENDENT NADH:QUINONE OXIDOREDUCTASE; 1.
DR Pfam; PF02525; Flavodoxin_2; 1.
DR SUPFAM; SSF52218; Flavoproteins; 1.
PE 3: Inferred from homology;
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630, ECO:0000256|HAMAP-
KW Rule:MF_01216};
KW FMN {ECO:0000256|ARBA:ARBA00022643, ECO:0000256|HAMAP-Rule:MF_01216};
KW NAD {ECO:0000256|ARBA:ARBA00023027, ECO:0000256|HAMAP-Rule:MF_01216};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_01216}.
FT DOMAIN 3..195
FT /note="Flavodoxin-like fold"
FT /evidence="ECO:0000259|Pfam:PF02525"
FT BINDING 10
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01216"
FT BINDING 16..18
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01216"
FT BINDING 96..99
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01216"
FT BINDING 140..143
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01216"
SQ SEQUENCE 199 AA; 21733 MW; 98E990451DBE8F49 CRC64;
MARILNIISS PRGEQSNSIK LANAVIDRLR EKEPASFVKV KDLTRNPFPH LEEVHLNAFF
TPAEKHTDAN RAAIQHSNQA IQEIMDADIL VIGAPMYNFG ISSTLKAWID HITRAGITFK
YTTEGPVGLI TGKKAYVAVT TGGIYSSGDY KPFDFVTPYL KMALGFIGIT DVTFIRGEGF
AVSAVQETAL DTAIDSIVV
//
