ID A0A1M4WSG1_9GAMM Unreviewed; 479 AA.
AC A0A1M4WSG1;
DT 15-MAR-2017, integrated into UniProtKB/TrEMBL.
DT 15-MAR-2017, sequence version 1.
DT 24-JAN-2024, entry version 30.
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=SAMN02745204_01236 {ECO:0000313|EMBL:SHE83983.1};
OS Thermomonas hydrothermalis.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Xanthomonadales;
OC Xanthomonadaceae; Thermomonas.
OX NCBI_TaxID=213588 {ECO:0000313|EMBL:SHE83983.1, ECO:0000313|Proteomes:UP000242857};
RN [1] {ECO:0000313|Proteomes:UP000242857}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 14834 {ECO:0000313|Proteomes:UP000242857};
RA Varghese N., Submissions S.;
RL Submitted (NOV-2016) to the EMBL/GenBank/DDBJ databases.
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 ECO:0000256|RuleBase:RU003691}.
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DR EMBL; FQUK01000017; SHE83983.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A1M4WSG1; -.
DR STRING; 213588.SAMN02745204_01236; -.
DR Proteomes; UP000242857; 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 Gene3D; 3.30.390.30; -; 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; 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:SF2; MERCURIC REDUCTASE; 1.
DR Pfam; PF07992; Pyr_redox_2; 1.
DR Pfam; PF02852; Pyr_redox_dim; 1.
DR PIRSF; PIRSF000350; Mercury_reductase_MerA; 1.
DR PRINTS; PR00945; HGRDTASE.
DR SUPFAM; SSF51905; FAD/NAD(P)-binding domain; 1.
DR SUPFAM; SSF55424; FAD/NAD-linked reductases, dimerisation (C-terminal) domain; 1.
DR PROSITE; PS00076; PYRIDINE_REDOX_1; 1.
PE 3: Inferred from homology;
KW FAD {ECO:0000256|ARBA:ARBA00022827, ECO:0000256|PIRSR:PIRSR000350-3};
KW Flavoprotein {ECO:0000256|ARBA:ARBA00022630,
KW ECO:0000256|RuleBase:RU003691};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW NAD {ECO:0000256|PIRSR:PIRSR000350-3};
KW Nucleotide-binding {ECO:0000256|PIRSR:PIRSR000350-3};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|RuleBase:RU003691};
KW Redox-active center {ECO:0000256|ARBA:ARBA00023284,
KW ECO:0000256|RuleBase:RU003691};
KW Reference proteome {ECO:0000313|Proteomes:UP000242857}.
FT DOMAIN 18..336
FT /note="FAD/NAD(P)-binding"
FT /evidence="ECO:0000259|Pfam:PF07992"
FT DOMAIN 355..463
FT /note="Pyridine nucleotide-disulphide oxidoreductase
FT dimerisation"
FT /evidence="ECO:0000259|Pfam:PF02852"
FT BINDING 63
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT BINDING 195..202
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT BINDING 280
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT BINDING 321
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT DISULFID 54..59
FT /note="Redox-active"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-4"
SQ SEQUENCE 479 AA; 50326 MW; 195521AC9A38D108 CRC64;
MHPCCATTPH SAQEHTPRLA IIGSGGAAMA AALKAVERGA RVTLIERGTI GGTCVNVGCV
PSKIMLRAAH IAYLRRESPF DGGVSATTPV IDRASLLAQQ QARVDELRHA KYEGILDGNP
AITVLHGAAR FQDGRTLVVS LNEGGERTVA FDRCLIATGA SPAVPPIPGL KETPYWTSTE
ALMSDAIPPR LAVIGSSVVA LELAQAFARL GSKVTILARS TLLFREDPAI GEAITNAFRA
EGIEVLEHTQ ANQVAHTNGE FVLTTGHGEL RADQLLVATG RTPNTRDLDL EAAGVATNTQ
GAIAVDSHLR TSAQDIYAAG DCTDLPQFVY VAAAAGTRAA INMTGGEATL DLTAMPAVVF
TDPQVATVGL NEQEAHRAGI ETDSRTLTLD NVPRALTNFD TRGFIKLVTD AGSGRLIGVQ
AVAPEAGELI QTAALAIRNR MTVQELADQL FPYLTMVEGL KLAAQTFSKD VKQLSCCAG
//