KpATCC43816 Protein target profile

sugar (Glycoside-Pentoside-Hexuronide) transporter domain protein

Accession: VK055_0592

Gene: gph AIK79215.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GNY0
Length 460
Pocket druggability (P2Rank · AlphaFold DB model) 0.876
Direct ligand evidence 0 52 total records
Functional annotation 0 EC 5 GO
Target summary

Target candidate with partial support; inspect missing evidence before prioritizing.

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 (%)
29.747 Lower values reduce human off-target concern.
Human E-value
4.55e-07
Gut microbiome similarity
0.2% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.

Essentiality

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

Structure confidence

ColabFold pLDDT
86.32 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) 0.876
Structure A0A0H3GNY0
Pocket Pocket 1
Druggability (FPocket) 0.969
Structure A0A0H3GNY0
Pocket Pocket 32
ColabFold model
P2Rank 0.836 · Pocket 1
FPocket 0.878 · Pocket 4
Core conservation Accessory gene
Roary accessory
CoreCruncher accessory
Gut microbiome 11 / 4744 genomes with a hit
Prevalence 0.2%

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.

MAETTFTLWRQRLGYGIADLSCNLVWQMISLYLMFFYTDVMGLPAYYVGLMFLVTRLVDGVADVLMGLVIDNTTTRWGRCRPWLLIGALPFGLLCILAFYVPDFGTTGKLLYAFVTYLCLSFLYTLVNIPFCAMLPFLTSDSAERTTLSAVRILLGSLGATIVAVASLPLVGMLGKGNQQQGFLYTAVIFGVLAAFFLLVSFRNVEEKITLTGERMTLKRAWISLRANRPWWVFASNIFLMWGAFFFQTGALVYFFHYYVGNTELTAVIAGISTFVPLLGTLTVPLLARRMKKRHVYLVASAVNLLGMGIMMVSGAHVLGLIVGAVILSLGAGQRTAIYFSMQADPVDYGVWKTGINTAGILTSINGFLGKVAMAGAGAITGVLLSSSGYIANHTQSDSALLAIKACYLYIPALLILASMLWMGRFYRLDDQYEQIRADLDAGRGASPAPAPTAGESPAM

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:0008643 The directed movement of carbohydrate into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. Carbohydrates are a group of organic compounds based of the general formula Cx(H2O)y.
  • GO:0015293 Enables the active transport of a solute across a membrane by a mechanism whereby two or more species are transported together in the same direction in a tightly coupled process not directly linked to a form of energy other than chemiosmotic energy.
  • GO:0006814 The directed movement of sodium ions (Na+) into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore.
  • GO:0005886 The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

49 records
Show feature table
Start End DB Term Name
260 264 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
289 294 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
36 46 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
12 35 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
9 430 SUPERFAMILY SSF103473 MFS general substrate transporter
9 430 InterPro IPR036259 MFS transporter superfamily
424 460 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
48 70 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
359 380 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
265 288 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
71 81 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
172 182 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
13 35 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
47 70 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
82 102 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
295 312 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
103 113 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
10 208 Gene3D G3DSA:1.20.1250.20 MFS general substrate transporter like domains
10 208 InterPro IPR036259 MFS transporter superfamily
225 426 Gene3D G3DSA:1.20.1250.20 MFS general substrate transporter like domains
225 426 InterPro IPR036259 MFS transporter superfamily
14 431 Pfam PF13347 MFS/sugar transport protein
400 422 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
400 423 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
339 358 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
114 138 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
12 441 NCBIfam TIGR00792 glycoside-pentoside-hexuronide (GPH):cation symporter
12 441 InterPro IPR001927 Sodium:galactoside symporter
9 442 PANTHER PTHR11328 MAJOR FACILITATOR SUPERFAMILY DOMAIN-CONTAINING PROTEIN
9 442 InterPro IPR039672 Lactose permease-like
234 256 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
266 288 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
150 171 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
183 202 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
231 259 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
316 333 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
153 175 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
139 149 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
363 385 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
180 202 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
314 318 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
12 430 CDD cd17332 MFS_MelB_like
319 338 Phobius TRANSMEMBRANE Region of a membrane-bound protein predicted to be embedded in the membrane.
110 132 TMHMM TMhelix Region of a membrane-bound protein predicted to be embedded in the membrane.
381 399 Phobius NON_CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the extracellular region.
203 230 Phobius CYTOPLASMIC_DOMAIN Region of a membrane-bound protein predicted to be outside the membrane, in the cytoplasm.
295 313 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.
83 100 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
0.876
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Surrounding area
Pocket 2 P2Rank #2
0.719
Likely same site as FPocket 32 6.1 Å 13 shared residues 72% of smaller site
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Surrounding area
Pocket 3 P2Rank #3
0.701
Likely same site as FPocket 30 1.7 Å 19 shared residues 95% of smaller site
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Surrounding area
Pocket 4 P2Rank #4
0.247
Likely same site as FPocket 9 7.3 Å 15 shared residues 94% of smaller site
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Surrounding area
Pocket 5 P2Rank #5
0.202
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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 #32
0.969 Unusual size
Likely same site as P2Rank 2 6.1 Å 13 shared residues 72% of smaller site
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Surrounding area
Pocket 2 FPocket #5
0.909
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Surrounding area
Pocket 3 FPocket #30
0.861
Likely same site as P2Rank 3 1.7 Å 19 shared residues 95% of smaller site
Show in viewer
Surrounding area
Pocket 4 FPocket #9
0.806 Unusual size
Likely same site as P2Rank 4 7.3 Å 15 shared residues 94% 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_A0A0H3GNY0
AlphaFold DB full sequence Viewing
ColabFold VK055_0592
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
9PG PDB via homolog 301.3 Da · LogP -1.23 · TPSA 142.5 Open detail RCSB PDB
LMO PDB via homolog Detail RCSB PDB
ZINC1070097 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC12359987 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC12359988 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
9PG RCSB PDB P30878 301.3 Da LogP -1.23 TPSA 142.5 ✓ Ro5 ✓ Clean c1cc(ccc1[N+](=O)[O-])O[C@@H]2[C@@H]([C@H]([C@H…
LMO RCSB PDB P30878 510.6 Da LogP -0.45 TPSA 178.5 3 viol. ✓ Clean CCCCCCCCCCCCO[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1…

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.