KpATCC43816 Protein target profile

magnesium transporter

Accession: VK055_4890

Gene: mgtE AIK83417.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3H0X8
Length 478
Pocket druggability (P2Rank · AlphaFold DB model) 0.705
Direct ligand evidence 0 52 total records
Functional annotation 0 EC 7 GO
Target summary

Promising target candidate with multiple supporting evidence streams.

Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.

Terms and data sources used on this page

PDB: experimentally determined structures from the Protein Data Bank. These are the strongest structural evidence, but may cover only part of the protein.

AlphaFold DB model: a precomputed predicted structure downloaded from AlphaFold Database/UniProt, not an experiment performed here.

ColabFold model: a predicted structure generated for this workspace; interpret it with coverage and confidence.

pLDDT: confidence score for predicted structures. High values support local geometry; low values mean the region should not drive pocket interpretation.

FPocket / P2Rank: software tools that predict possible ligand-binding pockets on a 3D structure. They are useful screening signals, not experimental validation.

Druggability: a pocket-based estimate of whether a small molecule could bind productively. It does not mean a drug already exists.

PDB ligand: a compound observed in an experimental structure. Direct same-protein records are stronger than homolog-transferred records.

ChEMBL: a public database of measured compound bioactivity. Direct entries are stronger than entries transferred from similar proteins.

ZINC: a purchasable-compound database. Here it marks proposed candidates from chemical similarity, not measured binders.

LigQ / LigQ_2: an internal Target pipeline step that gathers PDB, ChEMBL, and ZINC ligand evidence for each protein.

Off-target: sequence similarity to proteins we prefer not to hit, such as human proteins or beneficial gut microbiome proteins.

DEG: Database of Essential Genes. A match suggests the protein resembles genes known to be essential in other organisms.

Roary / CoreCruncher: pan-genome tools used to decide whether a gene is core across analyzed strains or accessory/strain-specific.

EC / GO: functional annotations: EC describes enzyme reactions; GO describes biological process, molecular function, or cellular component.

KEGG pathway: a curated metabolic route label used here to group reactions imported from the metabolic model.

Chokepoint: a metabolic reaction that is the only producer or consumer of a metabolite in the imported model.

Prioritization evidence

Selectivity, essentiality, structural confidence, conservation, and predicted binding-site evidence.

Off-target risk

Human off-target
No hit
Gut microbiome similarity
2.5% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
Y
DEG identity (%)
51.954 Higher values support similarity to known essential genes.
DEG E-value
4.77e-153 Smaller values mean stronger essential-gene similarity.

Structure confidence

ColabFold pLDDT
88.96 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

P2Rank's binding-site probability is the primary druggability signal shown across the app; FPocket's druggability score is shown alongside it for comparison. Both estimate small-molecule pocket quality after applying the curated structure priority — neither is experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

Druggability (P2Rank) 0.705
Structure A0A0H3H0X8
Pocket Pocket 1
Druggability (FPocket) 0.531
Structure A0A0H3H0X8
Pocket Pocket 13
ColabFold model
P2Rank 0.744 · Pocket 1
FPocket 0.785 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 120 / 4744 genomes with a hit
Prevalence 2.5%

Metabolic context

Reactions catalyzed, pathway membership, and centrality in the genome-scale metabolic network.

This protein is not associated with the imported metabolic network for this genome.

Browse the genome's metabolic network

Imported from KpATCC43816.sbml · 2026-07-09

Sequence

Primary amino-acid sequence viewer.

MSVLHKKSARLRDEERARLIWLLSTDKAVTSALLGKLTLAERYDEGTLADDLAEVEMLVSHLPPPDLADALEALPYDARTALWCLVPDDKRGEVLLEASENVWGDLIDKMSDPELLQAMQPLDIDEQVYLLQHLPRNLTGRLLATLPAEKRARIRQIMRYADNSVGSIMEFEVITVRPEATLAAVQRYLRRLGKMPENTDKLFVTTRNKLLLGELELQTILLNDAQKRVGEVMEGDPVTFQPHEEAEKVARTFERDDLLSAAVIDADGKLIGRLTIDEIVDVVYEETDNDLRRMGGLSDEEDVFAPVSKAVKTRWAWLAVNLCTAFIASRVIDGFEHTISQLVALASLMPIVAGIGGNTGNQTITMIVRAMALQQIQPGSFTFLILREMGVALINGLVWGGIMGAITWWLYDDPQLGGVMTLAMMLNLLMAAMMGVIIPMVMVKLGRDPAVGSSVMITAITDTGGFFIFLGLATLFLM

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

7 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

7
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.
  • GO:0006812 The directed movement of a monoatomic cation, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Monatomic cations (also called simple cations) are positively charged ions consisting of exactly one atom.
  • GO:0008324 Enables the transfer of cation from one side of a membrane to the other.
  • GO:0015693 The directed movement of magnesium (Mg) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
  • GO:0015095 Enables the transfer of magnesium (Mg) ions from one side of a membrane to the other.
  • GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
  • GO:0046872 Binding to a metal ion.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

42 records
Show feature table
Start End DB Term Name
304 477 Gene3D G3DSA:1.10.357.20 SLC41 divalent cation transporters, integral membrane domain
304 477 InterPro IPR036739 SLC41A/MgtE divalent cation transporters, integral membrane domain superfamily
62 165 SMART SM00924 MgtE_N_2
62 165 InterPro IPR006668 Magnesium transporter, MgtE intracellular domain
418 440 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
455 477 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
478 478 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
44 477 PANTHER PTHR43773 MAGNESIUM TRANSPORTER MGTE
44 477 InterPro IPR006669 Magnesium transporter MgtE
233 291 ProSiteProfiles PS51371 CBS domain profile.
233 291 InterPro IPR000644 CBS domain
338 357 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
315 332 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
349 471 Pfam PF01769 Divalent cation transporter
349 471 InterPro IPR006667 SLC41A/MgtE, integral membrane domain
423 443 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
1 314 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
229 283 Pfam PF00571 CBS domain
229 283 InterPro IPR000644 CBS domain
389 411 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
51 162 SUPERFAMILY SSF158791 MgtE N-terminal domain-like
62 163 Pfam PF03448 MgtE intracellular N domain
62 163 InterPro IPR006668 Magnesium transporter, MgtE intracellular domain
333 337 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
164 304 SUPERFAMILY SSF54631 CBS-domain pair
164 304 InterPro IPR046342 CBS domain superfamily
236 284 SMART SM00116 cbs_1
236 284 InterPro IPR000644 CBS domain
163 283 CDD cd04606 CBS_pair_Mg_transporter
390 411 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
455 477 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
161 288 Gene3D G3DSA:3.10.580.10 -
161 288 InterPro IPR046342 CBS domain superfamily
444 454 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
358 389 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
412 422 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
54 477 NCBIfam TIGR00400 magnesium transporter
54 477 InterPro IPR006669 Magnesium transporter MgtE
36 160 Gene3D G3DSA:1.25.60.10 -
36 160 InterPro IPR038076 MgtE, N-terminal domain superfamily
306 477 SUPERFAMILY SSF161093 MgtE membrane domain-like
306 477 InterPro IPR036739 SLC41A/MgtE divalent cation transporters, integral membrane domain superfamily

3D structure

Selected loaded structure. Experimental PDB entries may cover only a portion of the sequence; AlphaFold DB and ColabFold models typically cover the full protein but remain computational predictions.

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Pocket score High Medium Low
How colors and pocket overlays are used
Uniform protein color marks the displayed model as a single molecular object.
Experimental PDB structures may be colored by chain to distinguish subunits or copies present in the file.
Pocket colors and alpha spheres are evidence overlays for predicted binding cavities; they are not alternative protein chains.
'Alpha spheres' is FPocket's own cavity-shape geometry, imported when available and aligned with the loaded structure.
'Pocket atoms'/'Predicted site atoms' show the pocket's residue atoms instead: P2Rank reports residues rather than alpha spheres, and FPocket falls back to this when alpha-sphere geometry is unavailable or doesn't align.
'No pocket geometry' means neither alpha spheres nor residue-position data could be found for that pocket; the layer just highlights the same residues as 'Nearby residues'.
Pocket details Inspect a specific pocket, or open the full viewer

Binding pockets · P2Rank

Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Pocket 1 P2Rank #1
0.705
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Surrounding area
Pocket 2 P2Rank #2
0.171
Likely same site as FPocket 13 7.6 Å 7 shared residues 88% of smaller site
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Surrounding area

Binding pockets · FPocket

Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4

Pocket 1 FPocket #13
0.531 Unusual size
Likely same site as P2Rank 2 7.6 Å 7 shared residues 88% of smaller site
Show in viewer
Surrounding area
Pocket 2 FPocket #28
0.378 Unusual size
Likely same site as P2Rank 2 7.8 Å 5 shared residues 62% of smaller site
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Surrounding area
All structural evidence 0 experimental · 2 predicted

Structural evidence

0 + 2

Experimental PDB entries plus predicted AlphaFold DB or ColabFold models. Click Switch to display a different loaded structure in the viewer.

Entry Method Resolution Chain Coverage Links Status
AlphaFold DB AF_A0A0H3H0X8
AlphaFold DB full sequence Viewing
ColabFold VK055_4890
ColabFold full sequence Loaded

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.

52 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 2 records from similar proteins
Structural ligands 2 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
OLA PDB via homolog 282.5 Da · LogP 6.11 · TPSA 37.3 Open detail RCSB PDB
OLC PDB via homolog Detail RCSB PDB
ZINC1501016272 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC1501016273 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC1501016315 ZINC proposed compound · Tanimoto 1.000 Detail ZINC

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
OLA RCSB PDB Q5SMG8 282.5 Da LogP 6.11 TPSA 37.3 1 viol. ✓ Clean CCCCCCCC\C=C/CCCCCCCC(=O)O
OLC RCSB PDB Q5SMG8 356.5 Da LogP 4.92 TPSA 66.8 ✓ Ro5 ✓ Clean CCCCCCCC\C=C/CCCCCCCC(=O)OC[C@@H](CO)O

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.

Cross-references

External database identifiers for this protein, its structures, ligands, and metabolic reactions.