ID A0A0U1QM64_9BACL Unreviewed; 544 AA.
AC A0A0U1QM64;
DT 17-FEB-2016, integrated into UniProtKB/TrEMBL.
DT 17-FEB-2016, sequence version 1.
DT 24-JAN-2024, entry version 40.
DE RecName: Full=Mercuric reductase {ECO:0000256|ARBA:ARBA00014791};
DE EC=1.16.1.1 {ECO:0000256|ARBA:ARBA00012661};
DE AltName: Full=Hg(II) reductase {ECO:0000256|ARBA:ARBA00031725};
GN ORFNames=SINU_10885 {ECO:0000313|EMBL:KLI01904.1};
OS Sporolactobacillus inulinus CASD.
OC Bacteria; Bacillota; Bacilli; Bacillales; Sporolactobacillaceae;
OC Sporolactobacillus.
OX NCBI_TaxID=1069536 {ECO:0000313|EMBL:KLI01904.1, ECO:0000313|Proteomes:UP000035553};
RN [1] {ECO:0000313|EMBL:KLI01904.1, ECO:0000313|Proteomes:UP000035553}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CASD {ECO:0000313|EMBL:KLI01904.1,
RC ECO:0000313|Proteomes:UP000035553};
RX PubMed=21952540; DOI=10.1128/JB.05934-11;
RA Yu B., Su F., Wang L., Xu K., Zhao B., Xu P.;
RT "Draft genome sequence of Sporolactobacillus inulinus strain CASD, an
RT efficient D-lactic acid-producing bacterium with high-concentration lactate
RT tolerance capability.";
RL J. Bacteriol. 193:5864-5865(2011).
CC -!- CATALYTIC ACTIVITY:
CC Reaction=H(+) + Hg + NADP(+) = Hg(2+) + NADPH; Xref=Rhea:RHEA:23856,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:16170, ChEBI:CHEBI:16793,
CC ChEBI:CHEBI:57783, ChEBI:CHEBI:58349; EC=1.16.1.1;
CC Evidence={ECO:0000256|ARBA:ARBA00000896};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000256|PIRSR:PIRSR000350-3};
CC Note=Binds 1 FAD per subunit. {ECO:0000256|PIRSR:PIRSR000350-3};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738}.
CC -!- SIMILARITY: Belongs to the class-I pyridine nucleotide-disulfide
CC oxidoreductase family. {ECO:0000256|ARBA:ARBA00007532}.
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:KLI01904.1}.
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DR EMBL; AFVQ02000154; KLI01904.1; -; Genomic_DNA.
DR RefSeq; WP_010023127.1; NZ_AFVQ02000154.1.
DR AlphaFoldDB; A0A0U1QM64; -.
DR STRING; 1069536.SINU_10885; -.
DR OrthoDB; 9800167at2; -.
DR Proteomes; UP000035553; Unassembled WGS sequence.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR GO; GO:0016152; F:mercury (II) reductase activity; IEA:UniProtKB-EC.
DR GO; GO:0045340; F:mercury ion binding; IEA:InterPro.
DR GO; GO:0050661; F:NADP binding; IEA:InterPro.
DR GO; GO:0016668; F:oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor; IEA:InterPro.
DR GO; GO:0050787; P:detoxification of mercury ion; IEA:InterPro.
DR CDD; cd00371; HMA; 1.
DR Gene3D; 3.30.390.30; -; 1.
DR Gene3D; 3.30.70.100; -; 1.
DR Gene3D; 3.50.50.60; FAD/NAD(P)-binding domain; 2.
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; IPR017969; Heavy-metal-associated_CS.
DR InterPro; IPR006121; HMA_dom.
DR InterPro; IPR036163; HMA_dom_sf.
DR InterPro; IPR021179; Mercury_reductase_MerA.
DR InterPro; IPR001100; Pyr_nuc-diS_OxRdtase.
DR InterPro; IPR004099; Pyr_nucl-diS_OxRdtase_dimer.
DR InterPro; IPR012999; Pyr_OxRdtase_I_AS.
DR NCBIfam; TIGR02053; MerA; 1.
DR PANTHER; PTHR43014; MERCURIC REDUCTASE; 1.
DR PANTHER; PTHR43014:SF4; PYRIDINE NUCLEOTIDE-DISULFIDE OXIDOREDUCTASE RCLA-RELATED; 1.
DR Pfam; PF07992; Pyr_redox_2; 1.
DR Pfam; PF02852; Pyr_redox_dim; 1.
DR PIRSF; PIRSF000350; Mercury_reductase_MerA; 1.
DR PRINTS; PR00368; FADPNR.
DR PRINTS; PR00411; PNDRDTASEI.
DR SUPFAM; SSF51905; FAD/NAD(P)-binding domain; 1.
DR SUPFAM; SSF55424; FAD/NAD-linked reductases, dimerisation (C-terminal) domain; 1.
DR SUPFAM; SSF55008; HMA, heavy metal-associated domain; 1.
DR PROSITE; PS01047; HMA_1; 1.
DR PROSITE; PS00076; PYRIDINE_REDOX_1; 1.
PE 3: Inferred from homology;
KW Disulfide bond {ECO:0000256|ARBA:ARBA00023157};
KW FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|PIRSR:PIRSR000350-3};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630};
KW Mercuric resistance {ECO:0000256|ARBA:ARBA00022466};
KW Mercury {ECO:0000256|ARBA:ARBA00022914};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW NAD {ECO:0000256|PIRSR:PIRSR000350-3};
KW NADP {ECO:0000256|ARBA:ARBA00022857};
KW Nucleotide-binding {ECO:0000256|PIRSR:PIRSR000350-3};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002};
KW Redox-active center {ECO:0000256|ARBA:ARBA00023284};
KW Reference proteome {ECO:0000313|Proteomes:UP000035553}.
FT DOMAIN 83..400
FT /note="FAD/NAD(P)-binding"
FT /evidence="ECO:0000259|Pfam:PF07992"
FT DOMAIN 420..528
FT /note="Pyridine nucleotide-disulphide oxidoreductase
FT dimerisation"
FT /evidence="ECO:0000259|Pfam:PF02852"
FT BINDING 129
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT BINDING 254..261
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT BINDING 344
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT BINDING 385
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT DISULFID 120..125
FT /note="Redox-active"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-4"
SQ SEQUENCE 544 AA; 59064 MW; 7B4587468E53D2AE CRC64;
MITYRMTVQG MTCAGCEDHV ASTLEHIGAR NIKVNYQRGE ALFGLPVSIK KETVERAIVE
AHYQPVNFMQ IQSEGDSDKE DDYDYIIIGS GGAAFASAIK AREYGARVAM IERGIVGGTC
VNIGCVPSKT LLRAGEINNQ AKNHPFKGLH TSAAEADLAQ LVEQKNELVE TLRIQKYENL
IGTYGFELIK GEAKFVNEKT IEVNGRQLTG KRFLIATGAS PLIPDIPGLN HVDFLTSTTL
LELKKIPKRL AVIGSGYVGF ELGQLFHHLG TEVTLMQQSN QLLKKYDPEI SETITRALTQ
QGIHFITGIK FKRIEQDGQI KKVHIKTEGK EQVIEAEQLL VATGRKPNTA NLNLYSANVK
VGTRGEVLID EFSRTTNPRI YAAGDVTLGP QFVYVAAYQG GLAADNAVGG LGQKTDLDFV
PSVMFTTPST AMVGLTEEQA IKKGLKVKTS VLPLSTVPRA IVNRETTGVF KLVAEAKTLK
VLGVHIVAEN AGDVIYAATL AVKFGMTVED LQDTLTPYLT MAEGLRLAAL TFDKDISTLS
CCAG
//
