KpATCC43816 Protein target profile

oxalate/formate antiporter

Accession: VK055_0744

Gene: AIK79367.1 oxlT 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GNI8
Length 418
Pocket druggability (P2Rank · AlphaFold DB model) 0.916
Direct ligand evidence 0 54 total records
Functional annotation 0 EC 5 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
Hit
Human identity (%)
31.461 Lower values reduce human off-target concern.
Human E-value
2.67e-07
Gut microbiome similarity
0.4% 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.

Structure confidence

ColabFold pLDDT
88.81 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) 0.916
Structure A0A0H3GNI8
Pocket Pocket 1
Druggability (FPocket) 0.798
Structure A0A0H3GNI8
Pocket Pocket 6
ColabFold model
P2Rank 0.941 · Pocket 1
FPocket 0.381 · Pocket 9
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 18 / 4744 genomes with a hit
Prevalence 0.4%

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.

MTTLSEPLVTPKYGKWRQLVLGLICMAAISSPQYVWTLLTKPLAAKLGVGLPELQVTFSLLIILQTFFSPFQGRLVEKFGPRRLIAIGTVMAGMSWVLSAQVNGLATLWLVYGCMGGLGTGIVYIGVVGLMVKWFPQQRGFAAGAVAAGYGMGAIITTFPISLSLTTNGLEHTMTTFGILFALVGFLASQGLKLPPPAVSQPVSQTVVQSSRSFTSREMLRQPLFWLMFAMMAMMSTSGLMVTSQMAVFAEDFGISQAVVFGMAALPLALTIDRFTNGLTRPLFGFISDRFGREQTMFIAFALEGVAMMLWLACREDPLLFVLLSGVVFFGWGEIFSLFPSTLTDTFGSEHAASNYGWLYISQGIGSIFGGPLAALLYQHTHGWHVVFSCAIGLDFVTAALALWVLKPWRARFIRQHS

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

5 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

5
  • 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:0019532 The directed movement of oxalate into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Oxalate, or ethanedioic acid, occurs in many plants and is highly toxic to animals.
  • GO:0022857 Enables the transfer of a substance, usually a specific substance or a group of related substances, from one side of a membrane to the other.
  • GO:0019531 Enables the transfer of oxalate from one side of a membrane to the other. Oxalate, or ethanedioic acid, occurs in many plants and is highly toxic to animals.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

50 records
Show feature table
Start End DB Term Name
35 267 Pfam PF07690 Major Facilitator Superfamily
35 267 InterPro IPR011701 Major facilitator superfamily
276 295 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
15 405 CDD cd17353 MFS_OFA_like
164 168 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
37 55 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1 410 ProSiteProfiles PS50850 Major facilitator superfamily (MFS) profile.
1 410 InterPro IPR020846 Major facilitator superfamily domain
11 201 Gene3D G3DSA:1.20.1250.20 MFS general substrate transporter like domains
11 201 InterPro IPR036259 MFS transporter superfamily
216 412 Gene3D G3DSA:1.20.1250.20 MFS general substrate transporter like domains
216 412 InterPro IPR036259 MFS transporter superfamily
141 163 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
20 39 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
224 243 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
56 72 Phobius TRANSMEMBRANE 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.
244 254 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
1 18 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
106 128 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
379 383 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
384 406 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
15 417 NCBIfam TIGR04259 oxalate/formate MFS antiporter
15 417 InterPro IPR026355 Oxalate/formate antiporter
84 102 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
319 339 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
340 358 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
255 275 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
19 36 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
224 243 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
15 414 SUPERFAMILY SSF103473 MFS general substrate transporter
15 414 InterPro IPR036259 MFS transporter superfamily
359 378 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
108 132 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
384 406 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
14 388 PANTHER PTHR11360 MONOCARBOXYLATE TRANSPORTER
296 313 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
407 418 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
314 318 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
141 163 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
189 223 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
169 188 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
355 377 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
133 140 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
173 192 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
54 71 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
84 102 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
253 272 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
73 83 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
318 340 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.

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
0.916
Likely same site as FPocket 6 1.1 Å 27 shared residues 93% of smaller site
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Surrounding area
Pocket 2 P2Rank #2
0.158
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Surrounding area
Pocket 3 P2Rank #3
0.074
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Surrounding area
Pocket 4 P2Rank #4
0.063
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Surrounding area
Pocket 5 P2Rank #5
0.017
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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 #6
0.798 Unusual size
Likely same site as P2Rank 1 1.1 Å 27 shared residues 93% 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_A0A0H3GNI8
AlphaFold DB full sequence Viewing
ColabFold VK055_0744
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.

54 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 4 records from similar proteins
Structural ligands 4 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
02Q PDB via homolog 164.2 Da · LogP 2.01 · TPSA 37.3 Open detail RCSB PDB
1HN PDB via homolog Detail RCSB PDB
FIV PDB via homolog Detail RCSB PDB
HCI PDB via homolog Detail RCSB PDB
ZINC164010 ZINC proposed compound · Tanimoto 0.870 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
02Q RCSB PDB A0LNN5 164.2 Da LogP 2.01 TPSA 37.3 ✓ Ro5 ✓ Clean Cc1ccccc1CCC(=O)O
1HN RCSB PDB A0LNN5 188.2 Da LogP 2.24 TPSA 57.5 ✓ Ro5 ✓ Clean c1ccc2c(c1)ccc(c2O)C(=O)O
FIV RCSB PDB A0LNN5 172.2 Da LogP 2.54 TPSA 37.3 ✓ Ro5 ✓ Clean c1ccc2cc(ccc2c1)C(=O)O
HCI RCSB PDB A0LNN5 150.2 Da LogP 1.70 TPSA 37.3 ✓ Ro5 ✓ Clean c1ccc(cc1)CCC(=O)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.