KpATCC43816 Protein target profile

resiniferatoxin-binding, phosphotriesterase-related protein

Accession: VK055_0763

Gene: AIK79386.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GSY9
Length 359
Pocket druggability (P2Rank · AlphaFold DB model) 0.909
Direct ligand evidence 0 74 total records
Functional annotation 0 EC 3 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 (%)
35.519 Lower values reduce human off-target concern.
Human E-value
3.5999999999999997e-35
Gut microbiome similarity
0.2% 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.

Structure confidence

ColabFold pLDDT
96.09 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) 0.909
Structure A0A0H3GSY9
Pocket Pocket 1
Druggability (FPocket) 0.662
Structure A0A0H3GSY9
Pocket Pocket 5
ColabFold model
P2Rank 0.918 · Pocket 1
FPocket 0.566 · Pocket 1
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.

MKGSIFRHPSPLPVGVSSGYVMTVLGPLPINEMGVTLMHEHILLDASGKWVPPCCCSDRHLAEMPVKMENLGELSLNPLMSRDNCQLFDVDVAIDELTKYRALGGETVVDPTNIGIGRDPKALARIARLTGLNIIMGTGLYLEPSHPEWVKISSVEQLTERLIYDLGGAEEKPEVLAGLIGEIGISSRFTPDEEKSLRAAGRASAATGVPIEVHLPGWERLGHRVLDILEQEGADLRHTVLCHMNPSFADKRYQRELAQRGAFLEYDMIGMSYYYADESAQSPSDEENARAIRELIDDGYIQQILLSQDVFLKTMLTRYGGHGYGYILKHFVPRLRRHGVSGEQLETLMIGNPQRVFGG

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

3 GO

Subcellular localization

Localization
CytoplasmicMembrane

Gene Ontology (GO)

3
  • GO:0008270 Binding to a zinc ion (Zn).
  • GO:0016788 Catalysis of the hydrolysis of any ester bond.
  • GO:0009056 A cellular process consisting of the biochemical pathways by which a living organism breaks down substances. This includes the breakdown of carbon compounds with the liberation of energy for use by the cell or organism.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

17 records
Show feature table
Start End DB Term Name
12 358 Gene3D G3DSA:3.20.20.140 -
34 357 CDD cd00530 PTE
34 357 InterPro IPR001559 Phosphotriesterase
34 42 ProSitePatterns PS01322 Phosphotriesterase family signature 1.
34 42 InterPro IPR017947 Aryldialkylphosphatase, zinc-binding site
18 357 PANTHER PTHR10819 PHOSPHOTRIESTERASE-RELATED
18 357 InterPro IPR001559 Phosphotriesterase
31 357 Pfam PF02126 Phosphotriesterase family
31 357 InterPro IPR001559 Phosphotriesterase
18 74 PIRSF PIRSF016839 PhP
18 74 InterPro IPR001559 Phosphotriesterase
72 359 PIRSF PIRSF016839 PhP
72 359 InterPro IPR001559 Phosphotriesterase
18 358 SUPERFAMILY SSF51556 Metallo-dependent hydrolases
18 358 InterPro IPR032466 Metal-dependent hydrolase
19 359 ProSiteProfiles PS51347 Phosphotriesterase family profile.
19 359 InterPro IPR001559 Phosphotriesterase

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
0.909
Likely same site as FPocket 5 2.6 Å 21 shared residues 100% of smaller site
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.073
Show in viewer
Surrounding area
Pocket 3 P2Rank #3
0.006
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #5
0.662 Unusual size
Likely same site as P2Rank 1 2.6 Å 21 shared residues 100% of smaller site
Show in viewer
Surrounding area
Residue sets
UniProt: Binding site:182-182
UniProt: Binding site:214-214
UniProt: Binding site:243-243
UniProt: Binding site:309-309
UniProt: Binding site:39-39
UniProt: Binding site:41-41
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_A0A0H3GSY9
AlphaFold DB full sequence Viewing
ColabFold VK055_0763
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.

74 records
Chemistry signal

Structural ligand evidence is available for this target.

Direct evidence 0 same-protein records
Transferred evidence 24 records from similar proteins
Structural ligands 24 0 loaded crystals
Measured bioactivity 0 direct and transferred ChEMBL records
Proposed compounds 50 similarity-based ZINC candidates
Best available ligand signal
9ON PDB via homolog 146.1 Da · LogP 0.57 · TPSA 74.6 Open detail RCSB PDB
BEZ PDB via homolog Detail RCSB PDB
BTB PDB via homolog Detail RCSB PDB
BUA PDB via homolog Detail RCSB PDB
CAC PDB via homolog Detail RCSB PDB

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
9ON RCSB PDB P0A434 146.1 Da LogP 0.57 TPSA 74.6 ✓ Ro5 ✓ Clean C[C@@H](CCC(=O)O)C(=O)O
BEZ RCSB PDB B4EXV8 122.1 Da LogP 1.38 TPSA 37.3 ✓ Ro5 ✓ Clean c1ccc(cc1)C(=O)O
BTB RCSB PDB P0A434 209.2 Da LogP -3.01 TPSA 104.4 ✓ Ro5 ✓ Clean C(CO)N(CCO)C(CO)(CO)CO
BUA RCSB PDB B4EXV8 88.1 Da LogP 0.87 TPSA 37.3 ✓ Ro5 ✓ Clean CCCC(=O)O
CAC RCSB PDB P0A434 137.0 Da LogP -0.52 TPSA 40.1 ✓ Ro5 ✓ Clean C[As](=O)(C)[O-]
D6K RCSB PDB P0A434 146.2 Da LogP 0.87 TPSA 38.7 ✓ Ro5 ✓ Clean C[C@@H]1C[C@H](OC(O1)(C)C)O
DII RCSB PDB P0A434 180.2 Da LogP 2.66 TPSA 35.5 ✓ Ro5 ✓ Clean CC(C)OP(=O)(C)OC(C)C
DPF RCSB PDB Q93LD7 154.1 Da LogP 1.16 TPSA 55.8 ✓ Ro5 ✓ Clean CCOP(=O)(O)OCC
DPJ RCSB PDB Q93LD7 170.2 Da LogP 1.28 TPSA 38.7 ✓ Ro5 ✓ Clean CCOP(=S)(O)OCC
DTV RCSB PDB Q3IVY4 154.3 Da LogP -0.43 TPSA 40.5 ✓ Ro5 ✓ Clean C([C@H]([C@@H](CS)O)O)S
DZZ RCSB PDB Q93LD7 142.1 Da LogP 0.50 TPSA 38.7 ✓ Ro5 ✓ Clean COP(=S)(O)OC
E4T RCSB PDB P0A434 162.2 Da LogP -0.83 TPSA 80.9 ✓ Ro5 ✓ Clean CC1CC(CC(C1)(O)O)(O)O
E8N RCSB PDB P0A434 126.2 Da LogP 3.37 TPSA 0.0 ✓ Ro5 ✓ Clean CCC1(CCCCC1)C
E9E RCSB PDB P0A434 138.1 Da LogP 1.49 TPSA 35.5 ✓ Ro5 ✓ Clean CCO[P@](=O)(C)OC
EBP RCSB PDB P0A434 242.3 Da LogP 3.76 TPSA 35.5 ✓ Ro5 ✓ Clean CCOP(=O)(Cc1ccc(cc1)C)OCC
EFS RCSB PDB P0A434 126.0 Da LogP 0.12 TPSA 66.8 ✓ Ro5 ✓ Clean CCOP(=O)(O)O
EPL RCSB PDB Q93LD7 260.2 Da LogP 3.26 TPSA 54.0 ✓ Ro5 ✓ Clean CCOP(=O)(OCC)Oc1ccc(cc1)OC
HLN RCSB PDB P0A434 292.3 Da LogP 4.98 TPSA 46.5 ✓ Ro5 ✓ Clean CCCCCCP(=O)(O)Oc1ccc2ccccc2c1
PEL RCSB PDB P0A434 122.2 Da LogP 1.22 TPSA 20.2 ✓ Ro5 ✓ Clean c1ccc(cc1)CCO
QMP RCSB PDB P0A434 178.2 Da LogP 2.15 TPSA 46.5 ✓ Ro5 ✓ Clean CP(=O)(O)OC1CCCCC1
TA8 RCSB PDB P0A434 290.3 Da LogP 0.75 TPSA 149.2 ✓ Ro5 ✓ Clean C[C@@H](C[C@@H](C[C@H](CCC(=O)O)C(=O)O)C(=O)O)C…
TEN RCSB PDB P0A434 182.2 Da LogP 2.20 TPSA 44.8 ✓ Ro5 ✓ Clean CCOP(=O)(OCC)OCC
TZZ RCSB PDB Q93LD7 140.1 Da LogP 1.03 TPSA 44.8 ✓ Ro5 ✓ Clean COP(=O)(OC)OC
VX RCSB PDB P0A434 124.1 Da LogP 0.84 TPSA 46.5 ✓ Ro5 ✓ Clean CCO[P@](=O)(C)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.