Protein target profile

VK055_0537

C4-dicarboxylate transporter/malic acid transport family protein

Genome: KpATCC43816 Gene: AIK79160.1 tdt 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GTJ7
Length 334
Pocket druggability 0.983
Direct ligand evidence 0 53 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
1.2% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

Essential (DEG)
N
DEG identity (%)
0.0 Higher values support similarity to known essential genes.

Localization

Localization
CytoplasmicMembrane

Structure confidence

ColabFold pLDDT
94.72 0-100 confidence; >70 supports local structural interpretation.

Binding-site evidence

AlphaFold DB / UniProt model

The selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.

FPocket 0.983
Structure A0A0H3GTJ7
Pocket Pocket 16
P2Rank 0.821
Structure A0A0H3GTJ7
Pocket Pocket 1
ColabFold model
FPocket 0.961 · Pocket 1
P2Rank 0.85 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 59 / 4744 genomes with a hit
Prevalence 1.2%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MNKTQTPRQVLNLPAGYFGMVLGTIGMGFAWRYASTLWPVSRSIGDGLVTLAMAMWVLLSMAFISRAIRFPASVLREMRHPVSSSFVSLFPATTLLVAIGLAPWCRPLAIGLFVPGVALQLAYAAWQSGGLWRGNHPREATTPGLYLPTVANNFISAMACGALGFSDAGLVFLGAGVFSWLSLEPAILQRLRSAGELPTPLRTSLGIQLAPALVACSAWLSVNGGEADTFAKLLFGYGLLQLLFMLRLMPWYLRQPFNASFWSFSFGISALATTGLHLGQARGDGFFHHLAMPLFIFSNLVVGLLLLRTALLLVSGKLLLQVDRETLLNKKEGS

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

7 GO

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:0055085 The process in which a solute is transported across a lipid bilayer, 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:0042802 Binding to an identical protein or proteins.
  • GO:0046583 Enables the transfer of a cation or cations from the inside of the cell to the outside of the cell across a membrane.
  • GO:0046677 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 an antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.
  • GO:0046690 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 a tellurium ion stimulus.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

39 records
Show feature table
Start End DB Term Name
7 321 Gene3D G3DSA:1.50.10.150 -
7 321 InterPro IPR038665 Voltage-dependent anion channel superfamily
48 70 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
259 278 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
13 35 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
103 107 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
12 31 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
290 314 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
6 321 FunFam G3DSA:1.50.10.150:FF:000002 Tellurite resistance protein TehA
169 188 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
315 334 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
43 64 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
82 104 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
8 324 PANTHER PTHR37955 TELLURITE RESISTANCE PROTEIN TEHA
143 165 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
127 153 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
234 253 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
12 309 Pfam PF03595 Voltage-dependent anion channel
12 309 InterPro IPR004695 Transporter protein SLAC1/Mae1/ Ssu1/TehA
201 222 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
108 130 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
14 303 CDD cd09324 TDT_TehA
14 303 InterPro IPR039264 Tellurite resistance protein TehA
32 42 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
201 223 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
182 200 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
257 279 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
233 250 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
85 102 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
154 181 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
254 258 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
13 316 NCBIfam TIGR00816 tellurite-resistance/dicarboxylate transporter
13 316 InterPro IPR011552 Tellurite resistance protein TehA/malic acid transport protein
279 289 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
65 84 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
223 233 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
294 316 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
108 126 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
1 11 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.

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 · FPocket

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

Site 1 FPocket #16
0.983
Likely same site as P2Rank 4 1.2 Å 14 shared residues 100% of smaller site
Unusual size
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Surrounding area
Site 2 FPocket #1
0.94
Likely same site as P2Rank 3 4.9 Å 14 shared residues 74% of smaller site
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Surrounding area
Site 3 FPocket #24
0.713
Likely same site as P2Rank 2 1.3 Å 12 shared residues 100% of smaller site
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Surrounding area

Binding pockets · P2Rank

Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2

Site 1 P2Rank #1
0.821
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Surrounding area
Site 2 P2Rank #2
0.692
Likely same site as FPocket 24 1.3 Å 12 shared residues 100% of smaller site
Show in viewer
Surrounding area
Site 3 P2Rank #3
0.569
Likely same site as FPocket 1 4.9 Å 14 shared residues 74% of smaller site
Show in viewer
Surrounding area
Site 4 P2Rank #4
0.232
Likely same site as FPocket 16 1.2 Å 14 shared residues 100% of smaller site
Show in viewer
Surrounding area
Site 5 P2Rank #5
0.214
Show in viewer
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_A0A0H3GTJ7
AlphaFold DB full sequence Viewing
ColabFold VK055_0537
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.

53 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 3 records from similar proteins
Structural ligands 3 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
BOG PDB via homolog 292.4 Da · LogP 0.16 · TPSA 99.4 Open detail RCSB PDB
PLC PDB via homolog Detail RCSB PDB
SPH PDB via homolog Detail RCSB PDB
ZINC100034925 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC100056252 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
BOG RCSB PDB P44741 292.4 Da LogP 0.16 TPSA 99.4 ✓ Ro5 ✓ Clean CCCCCCCCO[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)CO)…
PLC RCSB PDB A0A0Q3IDG7 622.8 Da LogP 8.12 TPSA 108.4 2 viol. ✓ Clean CCCCCCCCCCCC(=O)OC[C@H](CO[P@](=O)(O)OCC[N+](C)…
SPH RCSB PDB A0A0Q3IDG7 299.5 Da LogP 3.92 TPSA 66.5 ✓ Ro5 ✓ Clean CCCCCCCCCCCCCC=C[C@@H]([C@@H](CO)N)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.