KpKP13 Protein target profile

putative MFS general substrate transporter

Accession: KP13_02711

Gene: AHE42721.1 3D evidence: AlphaFold DB model + ColabFold model UniProt A0A0H3GT04
Length 418
Pocket druggability (P2Rank · AlphaFold DB model) 0.959
Direct ligand evidence 0 60 total records
Functional annotation 0 EC 3 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 (%)
23.828 Lower values reduce human off-target concern.
Human E-value
4.48e-06
Gut microbiome similarity
0.6% 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
84.02 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) 0.959
Structure A0A0H3GT04
Pocket Pocket 1
Druggability (FPocket) 0.985
Structure A0A0H3GT04
Pocket Pocket 22
ColabFold model
P2Rank 0.943 · Pocket 1
FPocket 0.984 · Pocket 17
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 28 / 4744 genomes with a hit
Prevalence 0.6%

Cross-references

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

Sequence

Primary amino-acid sequence viewer.

MTTLETNAAPAEASGEGVRTPEKAVRWAIPLSLLACVLLAFFDKISIAALFSDSHFQQAMGIDFDTTRLGILMSAFLLSYGFSSVLLSGLGDRIAPLRLLTGMMVVWCILMVIMGFTHNYALMVTLRILLGIAEGPLFPLAFAVVRHTFPQRLQARATMLWLLGTPVGAALGFPLSIWLLNTFGWQSTFFVMAMLTIPVLIFVRIGLRGVQLEARASSDKTSQEARRSARRELFVSPHFWMICIFNIAFLAYLWGINGWLPGYLIKGKGIHLEHAGWLSSMPFIAMLLGEIIGAWLSDRVDRRAAACFISLAGAGIGLAAVMHFTTPLPVIAAMSFSTFMWGTGAPNIFALLAKATHPRVSATAGGIFNGLGNFAGALSPAVMGALIAFTHSMDSGLIFLAVMAAVGCALLLPLLRRY

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

3 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

3
  • 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:0055085 The process in which a solute is transported across a lipid bilayer, from one side of a membrane to the other.
  • GO:0016020 A lipid bilayer along with all the proteins and protein complexes embedded in it and attached to it.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

49 records
Show feature table
Start End DB Term Name
122 145 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
325 329 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
71 90 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
298 303 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
256 274 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
354 364 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
395 415 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
208 232 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
69 91 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
117 121 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
365 387 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
97 116 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
275 297 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
21 214 Gene3D G3DSA:1.20.1250.20 MFS general substrate transporter like domains
21 214 InterPro IPR036259 MFS transporter superfamily
330 352 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
29 418 ProSiteProfiles PS50850 Major facilitator superfamily (MFS) profile.
29 418 InterPro IPR020846 Major facilitator superfamily domain
146 156 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
330 353 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
157 179 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
233 255 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
365 389 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
397 415 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
27 51 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
158 180 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
180 184 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
185 207 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
1 26 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
190 212 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
34 380 Pfam PF07690 Major Facilitator Superfamily
34 380 InterPro IPR011701 Major facilitator superfamily
304 326 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
19 417 SUPERFAMILY SSF103473 MFS general substrate transporter
19 417 InterPro IPR036259 MFS transporter superfamily
233 255 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
52 70 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
225 418 Gene3D G3DSA:1.20.1250.20 MFS general substrate transporter like domains
225 418 InterPro IPR036259 MFS transporter superfamily
304 324 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
91 96 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
27 49 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
27 409 PANTHER PTHR11662 SOLUTE CARRIER FAMILY 17
123 145 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
390 394 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
26 414 CDD cd17319 MFS_ExuT_GudP_like
416 418 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
96 118 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
275 297 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
0.959
Likely same site as FPocket 22 3.9 Å 22 shared residues 81% of smaller site
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Surrounding area
Pocket 2 P2Rank #2
0.102
Likely same site as FPocket 25 1.6 Å 9 shared residues 100% of smaller site
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Surrounding area
Pocket 3 P2Rank #3
0.083
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Surrounding area
Pocket 4 P2Rank #4
0.036
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Surrounding area
Pocket 5 P2Rank #5
0.005
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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 #22
0.985 Unusual size
Likely same site as P2Rank 1 3.9 Å 22 shared residues 81% of smaller site
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Surrounding area
Pocket 2 FPocket #25
0.289
Likely same site as P2Rank 2 1.6 Å 9 shared residues 100% of smaller site
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Surrounding area
Pocket 3 FPocket #16
0.255
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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_A0A0H3GT04
AlphaFold DB full sequence Viewing
ColabFold KP13_02711
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.

60 records
Chemistry signal

Structural and bioactivity evidence are both available for this target.

Direct evidence 0 same-protein records
Transferred evidence 10 records from similar proteins
Structural ligands 1 0 loaded crystals
Measured bioactivity 9 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
CHEMBL236247 ChEMBL via homolog · pchembl 8.70 (~2.0 nM) Detail ChEMBL
CHEMBL238371 ChEMBL via homolog · pchembl 8.30 (~5.0 nM) Detail ChEMBL
CHEMBL1200712 ChEMBL via homolog · pchembl 7.40 (~39.8 nM) Detail ChEMBL
CHEMBL3218305 ChEMBL via homolog · pchembl 7.10 (~79.4 nM) Detail ChEMBL

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.