KpATCC43816 Protein target profile

glutathione S-transferase, C-terminal domain protein

Accession: VK055_3938

Gene: AIK82486.1 3D evidence: AlphaFold DB model + ColabFold model Metabolism Not in network UniProt A0A0H3GYT0
Length 328
Pocket druggability (P2Rank · AlphaFold DB model) 0.945
Direct ligand evidence 0 52 total records
Functional annotation 0 EC 2 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
2.5% 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
97.36 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) 0.945
Structure A0A0H3GYT0
Pocket Pocket 1
Druggability (FPocket) 0.765
Structure A0A0H3GYT0
Pocket Pocket 1
ColabFold model
P2Rank 0.951 · Pocket 1
FPocket 0.883 · Pocket 1
Core conservation Conserved core gene
Roary core
CoreCruncher core
Gut microbiome 120 / 4744 genomes with a hit
Prevalence 2.5%

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.

MGQLVDGVWQDTWYDTKSTGGRFKRSVSAFRNWLTADGAAGPSGEGGFAAEKDRYHLYVSLACPWAHRTLIMRKLKGLEPFLPVSVVNPLMLENGWTFDDSFPEATGDTLYQHDFLYQLYLHADPHYTGRVTVPVLWDKKQQTIVSNESAEIIRMFNTAFDGLGARAGDYYPPALREQIDELNGWIYDNVNNGVYKAGFATSQQAYDEAVDAVFTSLERLEQILGQHRYLTGNQLTEADIRLWTTLVRFDPVYVTHFKCDKRRISDYLNLYGFLRDIYQMPGIAETVSFPHIRHHYYRSHKTINPTGIISIGPQQDLNEPHGRDQRFR

Functional annotations

Enzyme classification and Gene Ontology terms linked to this protein.

2 GO

Subcellular localization

Localization
Cytoplasmic

Gene Ontology (GO)

2
  • GO:0004364 Catalysis of the reaction: RX + glutathione = an S-substituted glutathione + a halide anion + H+.
  • GO:0005737 The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

Sequence domains and features

Domain and signature matches imported from InterPro and related databases.

24 records
Show feature table
Start End DB Term Name
7 178 Gene3D G3DSA:3.40.30.10 Glutaredoxin
179 327 Gene3D G3DSA:1.20.1050.10 -
7 178 FunFam G3DSA:3.40.30.10:FF:000058 Glutathione S-transferase, omega
1 326 SFLD SFLDG01206 Xi.1
1 326 InterPro IPR016639 Glutathione S-transferase Omega/GSH
4 324 PIRSF PIRSF015753 GST
4 324 InterPro IPR016639 Glutathione S-transferase Omega/GSH
203 256 Pfam PF13410 Glutathione S-transferase, C-terminal domain
172 299 ProSiteProfiles PS50405 Soluble glutathione S-transferase C-terminal domain profile.
172 299 InterPro IPR010987 Glutathione S-transferase, C-terminal-like
174 324 SUPERFAMILY SSF47616 GST C-terminal domain-like
174 324 InterPro IPR036282 Glutathione S-transferase, C-terminal domain superfamily
1 326 SFLD SFLDS00019 Glutathione Transferase (cytosolic)
1 326 InterPro IPR040079 Glutathione transferase family
62 159 Pfam PF13409 Glutathione S-transferase, N-terminal domain
62 159 InterPro IPR004045 Glutathione S-transferase, N-terminal
172 313 CDD cd03190 GST_C_Omega_like
172 313 InterPro IPR047047 Glutathione S-transferases Omega-like, C-terminal
14 327 PANTHER PTHR32419 GLUTATHIONYL-HYDROQUINONE REDUCTASE
14 327 InterPro IPR016639 Glutathione S-transferase Omega/GSH
41 162 SUPERFAMILY SSF52833 Thioredoxin-like
41 162 InterPro IPR036249 Thioredoxin-like superfamily
309 328 MobiDBLite mobidb-lite consensus disorder prediction
179 327 FunFam G3DSA:1.20.1050.10:FF:000019 Glutathione S-transferase, omega

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.

Download VMD script Full viewer

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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
0.945
Likely same site as FPocket 1 1.7 Å 25 shared residues 96% of smaller site
Show in viewer
Surrounding area
Pocket 2 P2Rank #2
0.041
Show in viewer
Surrounding area
Pocket 3 P2Rank #3
0.008
Show in viewer
Surrounding area

Binding pockets · FPocket

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

Pocket 1 FPocket #1
0.765 Unusual size
Likely same site as P2Rank 1 1.7 Å 25 shared residues 96% of smaller site
Show in viewer
Surrounding area
Residue sets
UniProt: Active site:195-195 Proton donor/acceptor
UniProt: Active site:63-63 Nucleophile
UniProt: Binding site:130-133
UniProt: Binding site:148-149
UniProt: Binding site:96-96
UniProt: Site:253-253 Lowers pKa of active site Cys
UniProt: Site:296-296 Lowers pKa of active site Cys
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_A0A0H3GYT0
AlphaFold DB full sequence Viewing
ColabFold VK055_3938
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
0VS PDB via homolog 477.5 Da · LogP -0.05 · TPSA 193.0 Open detail RCSB PDB
GSH PDB via homolog Detail RCSB PDB
ZINC3830891 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC3830892 ZINC proposed compound · Tanimoto 1.000 Detail ZINC
ZINC3830893 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
0VS RCSB PDB P42620 477.5 Da LogP -0.05 TPSA 193.0 ✓ Ro5 Alert CC1=C(C(=O)c2ccccc2C1=O)SC[C@@H](C(=O)NCC(=O)O)…
GSH RCSB PDB A0A3F2YM27 307.3 Da LogP -2.21 TPSA 158.8 1 viol. ✓ Clean C(CC(=O)N[C@@H](CS)C(=O)NCC(=O)O)[C@@H](C(=O)O)N

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.