KpKP13 Protein target profile

4-hydroxyphenylacetate permease domain-containing protein

Accession: KP13_02499

Gene: AHE46508.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GM28
Length 456
Pocket druggability (P2Rank · AlphaFold DB model) 0.89
Direct ligand evidence 0 51 total records
Functional annotation 0 EC 4 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
1.1% 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
87.51 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) 0.89
Structure A0A0H3GM28
Pocket Pocket 1
Druggability (FPocket) 0.695
Structure A0A0H3GM28
Pocket Pocket 8
ColabFold model
P2Rank 0.931 · Pocket 1
FPocket 0.972 · Pocket 25
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 50 / 4744 genomes with a hit
Prevalence 1.1%

Sequence

Primary amino-acid sequence viewer.

MERNMTTSTLQHNDNKAVEVENRVIKKLFRRLITFLFVLFVFSFLDRINIGFAGLTMGKDLGLTSTMFGLAATLFYVTYVLCGIPSNIMLAKVGARRWIAGIMVVWGIASTCTMFATSPHTLYILRMLVGIAEAGFLPGILVYLTWWFPAYHRARANALFMIAMPVTMMLGSILSGYILALDGLWNLKGWQWLFLLEGLPSVVLGVVTWFFLNDTPDKANWLDNEEKQALKTMIDREREHAAIVPASPRSTLREVLTPAVLMYTLAYFCLTNTLSAINIWTPQILQSFNTGSSNIMIGLLAAIPQFCTIFGMIWWSRRSDRRKERKMHTILPYLFAAAGWLLASATHHSLIQLIGIIMASVGSFTAMAIFWTTPDRVISLQSRAVALAVINAIGNVGSAVSPLLIGILRDTTGSFSSGLWFVAGLLIVGALVLTRIPMSQREDAAAAPGLAAQKGH

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

4 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

4
  • GO:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
  • GO:1901241 Enables the transfer of 4-hydroxyphenylacetate from one side of a membrane to the other.
  • GO:1900754 The directed movement of a 4-hydroxyphenylacetate into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
  • 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.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

53 records
Show feature table
Start End DB Term Name
46 436 CDD cd17319 MFS_ExuT_GudP_like
327 345 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
254 441 FunFam G3DSA:1.20.1250.20:FF:000126 MFS transporter permease
69 91 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
36 377 Pfam PF07690 Major Facilitator Superfamily
36 377 InterPro IPR011701 Major facilitator superfamily
213 258 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
98 117 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
22 227 FunFam G3DSA:1.20.1250.20:FF:000018 MFS transporter permease
24 428 NCBIfam TIGR02332 4-hydroxyphenylacetate permease
24 428 InterPro IPR012707 4-hydroxyphenylacetate permease
87 97 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
256 446 Gene3D G3DSA:1.20.1250.20 MFS general substrate transporter like domains
256 446 InterPro IPR036259 MFS transporter superfamily
127 149 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
346 350 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
259 280 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
373 383 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
22 228 Gene3D G3DSA:1.20.1250.20 MFS general substrate transporter like domains
22 228 InterPro IPR036259 MFS transporter superfamily
1 31 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
158 180 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
434 456 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
67 86 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
190 212 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
411 433 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
294 316 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
384 408 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
98 117 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
295 315 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
18 437 SUPERFAMILY SSF103473 MFS general substrate transporter
18 437 InterPro IPR036259 MFS transporter superfamily
118 122 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
329 346 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
14 436 PANTHER PTHR43791 PERMEASE-RELATED
147 157 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
316 326 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
385 407 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
32 55 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
192 212 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
158 180 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
56 66 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
32 441 ProSiteProfiles PS50850 Major facilitator superfamily (MFS) profile.
32 441 InterPro IPR020846 Major facilitator superfamily domain
351 372 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
181 191 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
123 146 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
350 372 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
414 433 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
409 413 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
281 294 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
32 54 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
259 281 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
0.89
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Surrounding area
Pocket 2 P2Rank #2
0.486
Likely same site as FPocket 7 3.7 Å 8 shared residues 89% of smaller site
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Surrounding area
Pocket 3 P2Rank #3
0.071
Show in viewer
Surrounding area
Pocket 4 P2Rank #4
0.03
Likely same site as FPocket 8 3.5 Å 7 shared residues 100% of smaller site
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Surrounding area
Pocket 5 P2Rank #5
0.018
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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 #8
0.695
Likely same site as P2Rank 4 3.5 Å 7 shared residues 100% of smaller site
Show in viewer
Surrounding area
Pocket 2 FPocket #7
0.501
Likely same site as P2Rank 2 3.7 Å 8 shared residues 89% of smaller site
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_A0A0H3GM28
AlphaFold DB full sequence Viewing
ColabFold KP13_02499
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.

51 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 1 records from similar proteins
Structural ligands 1 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
J0M PDB via homolog 196.2 Da · LogP -3.49 · TPSA 138.5 Open detail RCSB PDB
ZINC11592819 ZINC proposed compound · Tanimoto 0.950 Detail ZINC
ZINC11592820 ZINC proposed compound · Tanimoto 0.950 Detail ZINC
ZINC11592821 ZINC proposed compound · Tanimoto 0.950 Detail ZINC
ZINC1531006 ZINC proposed compound · Tanimoto 0.950 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
J0M RCSB PDB J7QAK3 196.2 Da LogP -3.49 TPSA 138.5 1 viol. ✓ Clean C([C@H]([C@@H]([C@@H]([C@H](C(=O)O)O)O)O)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.