Protein profile

KP13_31580

Mercuric reductase

Genome: KpKP13

Gene: merA AHE47230.1 Structure source: AlphaFold + ColabFold UniProt A0A2D1HBC1
Amino acids 564
Annotations 11
Features 41
PDB binders 18
Druggability 0.997

Overview

Basic information about this protein and its source genome.

Accession
KP13_31580
Gene
merA AHE47230.1
Status
annotated
Amino acids
564
Structure source
AlphaFold + ColabFold

Target profile

Computed evidence for target prioritization.

Human off-target
hit
Human identity (%)
53.061
Human E-value
2.46e-08
Gut microbiome off-target
hit
Essential (DEG)
N
DEG identity (%)
0.0
Localization
Cytoplasmic
ColabFold pLDDT
93.16

Selected Druggability evidence

AlphaFold / UniProt model

Selected Druggability is the FPocket score chosen for ranking using the curated structure priority. The 3D viewer may show a different loaded structure, so its visible pockets can differ.

FPocket 0.997
Structure A0A2D1HBC1
Pocket Pocket 25
P2Rank 0.956
Structure A0A2D1HBC1
Pocket Pocket 1
ColabFold model
FPocket 0.853 · Pocket 26
P2Rank 0.957 · Pocket 1
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 21 / 4744 genomes with a hit
Normalized 0.004

Sequence

Primary amino-acid sequence viewer.

Functional Annotations

Enzyme classification and Gene Ontology terms linked to this protein.

1 EC 10 GO

Enzyme Commission (EC)

1

Gene Ontology (GO)

10
  • GO:0045340 Binding to a mercury ion (Hg2+).
  • GO:0050787 Any process that reduce or remove the toxicity of mercuric ion. These include transport of mercury away from sensitive areas and to compartments or complexes whose purpose is sequestration of mercury ion and/or reduction of mercury ion (Hg[II]) to metallic mercury (Hg[0]).
  • GO:0016668 Catalysis of an oxidation-reduction (redox) reaction in which a sulfur-containing group acts as a hydrogen or electron donor and reduces NAD or NADP.
  • GO:0046872 Binding to a metal ion.
  • GO:0016491 Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.
  • GO:0050660 Binding to FAD, flavin-adenine dinucleotide, the coenzyme or the prosthetic group of various flavoprotein oxidoreductase enzymes, in either the oxidized form, FAD, or the reduced form, FADH2.
  • GO:0050661 Binding to nicotinamide-adenine dinucleotide phosphate, a coenzyme involved in many redox and biosynthetic reactions; binding may be to either the oxidized form, NADP+, or the reduced form, NADPH.
  • GO:0016152 Catalysis of the reaction: H+ + Hg + NADP+ = Hg2+ + NADPH.
  • GO:0003955 Catalysis of the reaction: NAD(P)H + H+ + a quinone = NAD(P)+ + a quinol.
  • GO:0006979 Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of oxidative stress, a state often resulting from exposure to high levels of reactive oxygen species, e.g. superoxide anions, hydrogen peroxide (H2O2), and hydroxyl radicals.

Sequence Features

Domain/signature hits from InterPro and related databases.

41 records
Show feature table
Start End DB Term Name
3 65 CDD cd00371 HMA
3 65 InterPro IPR006121 Heavy metal-associated domain, HMA
1 564 PIRSF PIRSF000350 Hg-II_reductase_MerA
1 564 InterPro IPR001100 Pyridine nucleotide-disulphide oxidoreductase, class I
1 69 Gene3D G3DSA:3.30.70.100 -
6 35 ProSitePatterns PS01047 Heavy-metal-associated domain.
6 35 InterPro IPR017969 Heavy-metal-associated, conserved site
96 558 PANTHER PTHR43014 MERCURIC REDUCTASE
100 460 SUPERFAMILY SSF51905 FAD/NAD(P)-binding domain
100 460 InterPro IPR036188 FAD/NAD(P)-binding domain superfamily
99 421 Pfam PF07992 Pyridine nucleotide-disulphide oxidoreductase
99 421 InterPro IPR023753 FAD/NAD(P)-binding domain
439 562 SUPERFAMILY SSF55424 FAD/NAD-linked reductases, dimerisation (C-terminal) domain
439 562 InterPro IPR016156 FAD/NAD-linked reductase, dimerisation domain superfamily
132 142 ProSitePatterns PS00076 Pyridine nucleotide-disulphide oxidoreductases class-I active site.
132 142 InterPro IPR012999 Pyridine nucleotide-disulphide oxidoreductase, class I, active site
2 70 SUPERFAMILY SSF55008 HMA, heavy metal-associated domain
2 70 InterPro IPR036163 Heavy metal-associated domain superfamily
439 564 Gene3D G3DSA:3.30.390.30 -
439 564 InterPro IPR016156 FAD/NAD-linked reductase, dimerisation domain superfamily
439 559 FunFam G3DSA:3.30.390.30:FF:000001 Dihydrolipoyl dehydrogenase
440 548 Pfam PF02852 Pyridine nucleotide-disulphide oxidoreductase, dimerisation domain
440 548 InterPro IPR004099 Pyridine nucleotide-disulphide oxidoreductase, dimerisation domain
99 564 NCBIfam TIGR02053 mercury(II) reductase
99 564 InterPro IPR021179 Mercury(II) reductase
1 65 ProSiteProfiles PS50846 Heavy-metal-associated domain profile.
1 65 InterPro IPR006121 Heavy metal-associated domain, HMA
244 364 Gene3D G3DSA:3.50.50.60 -
244 364 InterPro IPR036188 FAD/NAD(P)-binding domain superfamily
3 62 Pfam PF00403 Heavy-metal-associated domain
3 62 InterPro IPR006121 Heavy metal-associated domain, HMA
101 423 Gene3D G3DSA:3.50.50.60 -
101 423 InterPro IPR036188 FAD/NAD(P)-binding domain superfamily
236 253 PRINTS PR00945 Mercuric reductase class II signature
472 492 PRINTS PR00945 Mercuric reductase class II signature
271 288 PRINTS PR00945 Mercuric reductase class II signature
537 556 PRINTS PR00945 Mercuric reductase class II signature
109 127 PRINTS PR00945 Mercuric reductase class II signature
13 23 PRINTS PR00945 Mercuric reductase class II signature
144 163 PRINTS PR00945 Mercuric reductase class II signature
291 306 PRINTS PR00945 Mercuric reductase class II signature

3D Structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; predicted models typically cover the full protein.

3D visualization script Full viewer

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Structural evidence

0 + 2

Experimental PDB entries and predicted models. Click Switch to display a different structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
AlphaFold AF_A0A2D1HBC1
AlphaFold full sequence Viewing
ColabFold KP13_31580
ColabFold full sequence Loaded
Pocket details FPocket · P2Rank — toggle visibility and zoom from here, or open full viewer

Pockets (FPOCKET)

Showing top-ranked FPocket candidates by druggability. Druggability is color-coded: high (0.7 or higher), medium (0.4 to 0.69), low (below 0.4).

FPOCKET Sticks Spheres Surfaces Druggability Labels Zoom Positions
25 0.997
15 0.399

Pockets (P2RANK)

Showing top-ranked P2Rank candidates by probability. Probability is color-coded per P2Rank calibration: high (≥ 0.5), medium (0.2 – 0.49), low (< 0.2).

P2RANK Sticks Spheres Surfaces Score Probability Labels Zoom Positions
1 25.89 0.909
2 2.98 0.097
3 2.47 0.068
4 1.92 0.039
5 1.55 0.023

Ligand evidence

Ligands grouped by evidence source. PDB ligands keep the source crystal visible, and loaded crystals can be opened directly in the structure viewer.

72 records

Structural evidence inferred from similar proteins. The source crystal indicates where the ligand was observed; the UniProt column identifies the homologous protein carrying that ligand.

Show only:
Ligand Source crystal UniProt (homolog) MW · LogP · TPSA Lipinski PAINS SMILES
2JR Q389T8 351.5 Da LogP 5.55 TPSA 31.9 1 viol. ✓ Clean c1cc2c(cc[nH]2)cc1c3ncc(s3)C4(CCCCC4)N5CCCC5
3II P9WHH9 625.6 Da LogP 4.65 TPSA 91.4 1 viol. ✓ Clean COc1ccc(c(c1)OC)C(=O)N2CCC3(CC2)C(=O)N(CN3c4ccc…
BTB Q9A0E2 209.2 Da LogP -3.01 TPSA 104.4 ✓ Ro5 ✓ Clean C(CO)N(CCO)C(CO)(CO)CO
GCG Q389T8 723.9 Da LogP -4.58 TPSA 313.3 3 viol. ✓ Clean C(CCNC(=O)CNC(=O)[C@H](CS)NC(=O)CC[C@@H](C(=O)O…
JWZ Q389T8 607.9 Da LogP 3.63 TPSA 103.4 1 viol. ✓ Clean [H]/N=C(/N)\N1CCC(CC1)(CN(C)CCCN2CN(C3(C2=O)CCN…
M52 P9WHH9 429.3 Da LogP 1.69 TPSA 114.6 ✓ Ro5 ✓ Clean C[N@@](CC(=O)Nc1ccc(cc1)OC)S(=O)(=O)c2cc(cnc2N)…
M9J Q389T8 555.8 Da LogP 6.51 TPSA 45.1 2 viol. ✓ Clean c1cc2c(ccn2CC3CCCN3)cc1c4nc(c(s4)C5(CCCCC5)N6CC…
M9S Q389T8 434.7 Da LogP 5.77 TPSA 33.1 1 viol. ✓ Clean c1cc2c(ccn2C[C@@H]3CCCN3)cc1c4ncc(s4)C5(CCCCC5)…
M9Y Q389T8 597.8 Da LogP 6.91 TPSA 45.1 2 viol. ✓ Clean c1cc2c(ccn2CCC3CCNCC3)cc1c4nc(c(s4)C5(CCCCC5)N6…
MLT B4EEF2 134.1 Da LogP -1.09 TPSA 94.8 ✓ Ro5 ✓ Clean C([C@H](C(=O)O)O)C(=O)O
RBF Q9A0E2 376.4 Da LogP -1.72 TPSA 161.6 ✓ Ro5 ✓ Clean Cc1cc2c(cc1C)N(C3=NC(=O)NC(=O)C3=N2)C[C@@H]([C@…
RD0 Q389T8 462.7 Da LogP 6.41 TPSA 33.1 1 viol. ✓ Clean c1cc2c(ccn2CCC3CCNCC3)cc1c4ncc(s4)C5(CCCCC5)N6C…
RD7 Q389T8 463.7 Da LogP 4.93 TPSA 36.3 ✓ Ro5 ✓ Clean c1cc2c(ccn2CCN3CCNCC3)cc1c4ncc(s4)C5(CCCCC5)N6C…
WP5 Q389T8 373.2 Da LogP 4.08 TPSA 41.9 ✓ Ro5 ✓ Clean CC1=Nc2ccc(cc2[C@@H](N1CC(=O)OC)c3ccccc3)Br
WP6 Q389T8 346.9 Da LogP 6.00 TPSA 15.6 1 viol. ✓ Clean CC1=Nc2ccc(cc2[C@@H](N1Cc3ccccc3)c4ccccc4)Cl
WP7 Q389T8 463.0 Da LogP 4.85 TPSA 52.3 ✓ Ro5 ✓ Clean CC1=Nc2ccc(cc2[C@@H](N1CCN3CCN(CC3)C(=O)c4ccco4…
WPE Q389T8 393.9 Da LogP 4.82 TPSA 57.8 ✓ Ro5 ✓ Clean CC1=Nc2ccc(cc2[C@@H](N1CCNC(=O)c3ccco3)c4ccccc4…
WPF Q389T8 355.9 Da LogP 5.06 TPSA 18.8 1 viol. ✓ Clean Cc1ccc(cc1)[C@H]2c3cc(ccc3N=C(N2CCCN(C)C)C)Cl

PDB and ChEMBL records on this protein are shown in full. ChEMBL records from similar proteins are capped at the top 100 per protein (by pchembl) and ZINC at the top 50 (Tanimoto ≥ 0.5). ADME columns are descriptor-based screening flags, not experimental toxicity results.