ID A0A2R8BQR7_9RHOB Unreviewed; 476 AA.
AC A0A2R8BQR7;
DT 20-JUN-2018, integrated into UniProtKB/TrEMBL.
DT 20-JUN-2018, sequence version 1.
DT 24-JAN-2024, entry version 22.
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 Name=merA_1 {ECO:0000313|EMBL:SPJ22490.1};
GN ORFNames=PAA8504_00284 {ECO:0000313|EMBL:SPJ22490.1};
OS Palleronia abyssalis.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodobacterales;
OC Roseobacteraceae; Palleronia.
OX NCBI_TaxID=1501240 {ECO:0000313|EMBL:SPJ22490.1, ECO:0000313|Proteomes:UP000244912};
RN [1] {ECO:0000313|EMBL:SPJ22490.1, ECO:0000313|Proteomes:UP000244912}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CECT 8504 {ECO:0000313|EMBL:SPJ22490.1,
RC ECO:0000313|Proteomes:UP000244912};
RA Keele B.F.;
RL Submitted (MAR-2018) 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; ONZF01000001; SPJ22490.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2R8BQR7; -.
DR Proteomes; UP000244912; 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: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 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:UP000244912}.
FT DOMAIN 14..329
FT /note="FAD/NAD(P)-binding"
FT /evidence="ECO:0000259|Pfam:PF07992"
FT DOMAIN 352..460
FT /note="Pyridine nucleotide-disulphide oxidoreductase
FT dimerisation"
FT /evidence="ECO:0000259|Pfam:PF02852"
FT BINDING 60
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT BINDING 187..194
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT BINDING 276
FT /ligand="NAD(+)"
FT /ligand_id="ChEBI:CHEBI:57540"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT BINDING 317
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-3"
FT DISULFID 51..56
FT /note="Redox-active"
FT /evidence="ECO:0000256|PIRSR:PIRSR000350-4"
SQ SEQUENCE 476 AA; 49717 MW; 67B6A3A1FEA96BCC CRC64;
MKDLNKNDDE QGGYDLIVLG AGSAGFSAAI TAADAGKRVA LVGHGAIGGT CVNVGCVPSK
AMIRAAEAVH GAGAAKRFPG LSGHAQVDDW HTLIQSKDDL VATLRQKKYA DLLPEYEGVD
YIDAGPARLI EGGVTVGERT LTAPKTIIAT GGRPVLPTID GIKDIGALDS TSLLELETLP
KSLIFIGAGY IGAELAQMMS RMGVKVTLVA RSHVLPGAEP EVSEALAEAF VAEGITLLTG
LSYDTVRRND AGVTLRVIQD GKPVDVTADH LVSTAGRRAN TEGMGLNEIG VEADARGSIT
VGEDMQTSVR GIYAAGDVTD RDQFVYMAAY GAKLAARNAV LGEDHRYDNA AMPWVVFSDP
QVAGVGLGEA QARDAGFDVK TSIVPLDQVP RALAARDPRG LIKLVADRKS DRLLGGQIIA
PEGSDTIQTL VMALKFGMTT KALGETIFPY LTTAEGLKLA AQTFDMDVAK LSCCAG
//
