Promising target candidate with multiple supporting evidence streams.
Automated synthesis of the evidence currently loaded. Review the underlying records before prioritizing this protein.
Main supporting evidence
Risks to review
Evidence coverage
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 (%)
- 25.965 Lower values reduce human off-target concern.
- Human E-value
- 3.39e-16
- Gut microbiome similarity
- 1.1% of screened genomes Lower prevalence suggests narrower overlap with the screened gut microbiome.
Essentiality
- Essential (DEG)
- Y
- DEG identity (%)
- 73.665 Higher values support similarity to known essential genes.
- DEG E-value
- 2.63e-156 Smaller values mean stronger essential-gene similarity.
Structure confidence
- ColabFold pLDDT
- 95.84 0-100 confidence; >70 supports local structural interpretation.
Binding-site evidence
AlphaFold DB / UniProt modelP2Rank'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.
Sequence
Primary amino-acid sequence viewer.
MSPFLRAYFSRLSWTGEPDVSIDTLRELHLQHNSAIPFENLDVLLPREIHLDDGALEEKLIAARRGGYCFEQNGLLERALREIGFNVRSLLSRVVLANPPQMPPRTHRLLLVEVAGERWIADVGFGGQTLTAPIKLLADIPQQTPHGSYRLVHEGDEWTLQFNHHEHWQSMYHFDLGRQYASDYVMGNFWSAHWPQSHFRHHLLMCRHLPDGGKMTLTNFHFTHWENNHVVEKIDFADVSALYEGLQTRFGLGVDDPKHGFSEAALAAVMAAFDTHPEAGK
Functional annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Subcellular localization
- Localization
- Cytoplasmic
Enzyme Commission (EC)
1Gene Ontology (GO)
3- GO:0016407 Catalysis of the transfer of an acetyl group to an acceptor molecule.
- GO:0004060 Catalysis of the reaction: acetyl-CoA + an arylamine = CoA + an N-acetylarylamine.
- GO:0046990 Catalysis of the reaction: acetyl-CoA + an N-hydroxyarylamine = CoA + an N-acetoxyarylamine.
Sequence domains and features
Domain and signature matches imported from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 1 | 84 | Gene3D | G3DSA:6.10.140.1930 | - |
| 69 | 91 | PRINTS | PR01543 | Arylamine N-acetyltransferase signature |
| 69 | 91 | InterPro | IPR001447 | Arylamine N-acetyltransferase |
| 101 | 126 | PRINTS | PR01543 | Arylamine N-acetyltransferase signature |
| 101 | 126 | InterPro | IPR001447 | Arylamine N-acetyltransferase |
| 21 | 44 | PRINTS | PR01543 | Arylamine N-acetyltransferase signature |
| 21 | 44 | InterPro | IPR001447 | Arylamine N-acetyltransferase |
| 45 | 68 | PRINTS | PR01543 | Arylamine N-acetyltransferase signature |
| 45 | 68 | InterPro | IPR001447 | Arylamine N-acetyltransferase |
| 5 | 256 | PANTHER | PTHR11786 | N-HYDROXYARYLAMINE O-ACETYLTRANSFERASE |
| 5 | 256 | InterPro | IPR001447 | Arylamine N-acetyltransferase |
| 85 | 198 | Gene3D | G3DSA:2.40.128.150 | Cysteine proteinases |
| 3 | 269 | SUPERFAMILY | SSF54001 | Cysteine proteinases |
| 3 | 269 | InterPro | IPR038765 | Papain-like cysteine peptidase superfamily |
| 199 | 281 | Gene3D | G3DSA:3.30.1120.150 | - |
| 22 | 255 | Pfam | PF00797 | N-acetyltransferase |
| 22 | 255 | InterPro | IPR001447 | Arylamine N-acetyltransferase |
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.
How colors and pocket overlays are used
Pocket details Inspect a specific pocket, or open the full viewer
- Method
- -
- Score
- -
- Visible layer
- -
- Residues
- -
- Pocket properties
- -
Selecting a pocket opens its details and centers the viewer without clearing other active layers. Use Focus this pocket when you want to hide the rest; use Surface for the wider residue environment.
Binding pockets · P2Rank
Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Binding pockets · FPocket
Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
Binding pockets · P2Rank
Druggability (P2Rank): high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Binding pockets · FPocket
Druggability (FPocket): high ≥ 0.7 · medium 0.4–0.69 · low < 0.4
All structural evidence
Structural evidence
0 + 2Experimental 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_A0A060VHR0
|
AlphaFold DB | — | — | full sequence | — | Viewing |
|
ColabFold
VK055_0599
|
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.
Structural and bioactivity evidence are both available for this target.
Highest-confidence structural evidence: ligands co-crystallized with this exact protein. If the source PDB is loaded in Target, use Open crystal to inspect it in the structure viewer.
No PDB structure with a co-crystallized ligand found for this exact protein.
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.
| Ligand | Source crystal | UniProt (homolog) | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|---|
| ACM RCSB PDB | P18440 | 59.1 Da LogP -0.51 TPSA 43.1 | ✓ Ro5 | ✓ Clean |
CC(=O)N
|
|
| AZI RCSB PDB | B2HIZ6 | 42.0 Da LogP 0.87 TPSA 58.7 | ✓ Ro5 | Alert |
[N-]=[N+]=[N-]
|
|
| HLZ RCSB PDB | B2HIZ6 | 160.2 Da LogP 0.92 TPSA 63.8 | ✓ Ro5 | ✓ Clean |
c1ccc2c(c1)cnnc2NN
|
|
| KH2 RCSB PDB | Q81AS3 | 221.3 Da LogP 0.55 TPSA 57.2 | ✓ Ro5 | ✓ Clean |
C[N+]1(CCCCC1)CCCS(=O)(=O)[O-]
|
|
| P18 RCSB PDB | B2HIZ6 | 150.2 Da LogP 1.25 TPSA 37.3 | ✓ Ro5 | ✓ Clean |
c1ccc(cc1)C(=O)CCO
|
Experimental bioactivity from ChEMBL measured directly on this protein. Score = pchembl (−log Ki/IC₅₀; higher = more potent).
No ChEMBL bioactivity data found for this exact protein.
Bioactivity inferred from similar proteins in ChEMBL. Score = pchembl (−log Ki/IC₅₀; higher = more potent).
| Ligand | UniProt (homolog) | pchembl | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|---|
| CHEMBL3262086 ChEMBL | P18440 | 6.92 ~120.2 nM | 419.5 Da LogP 2.95 TPSA 118.4 | ✓ Ro5 | Alert |
Nc1cccc2c1C(=O)C(NS(=O)(=O)c1ccccc1)=C(Nc1ccccc…
|
| CHEMBL458614 ChEMBL | P18440 | 6.86 ~138.0 nM | 489.1 Da LogP 3.09 TPSA 49.3 | ✓ Ro5 | Alert |
O=C1NC(=S)S/C1=C\c1cc(I)c(O)c(I)c1
|
| CHEMBL511164 ChEMBL | P50295 | 6.52 ~302.0 nM | 312.4 Da LogP 3.43 TPSA 46.3 | ✓ Ro5 | Alert |
NN1C(=O)/C(=C/c2ccccc2-c2ccccc2)SC1=S
|
| CHEMBL3262085 ChEMBL | P18440 | 6.27 ~537.0 nM | 447.5 Da LogP 3.57 TPSA 118.4 | ✓ Ro5 | Alert |
Cc1cc(C)cc(NC2=C(NS(=O)(=O)c3ccccc3)C(=O)c3c(N)…
|
| CHEMBL457919 ChEMBL | P18440 | 6.22 ~602.6 nM | 237.3 Da LogP 1.88 TPSA 49.3 | ✓ Ro5 | Alert |
O=C1NC(=S)S/C1=C\c1cccc(O)c1
|
| CHEMBL3262049 ChEMBL | P18440 | 6.05 ~891.3 nM | 483.3 Da LogP 4.13 TPSA 92.3 | ✓ Ro5 | Alert |
O=C1C(Nc2ccc(Br)cc2)=C(NS(=O)(=O)c2ccccc2)C(=O)…
|
| CHEMBL458955 ChEMBL | P50295 | 6.00 ~1.0 µM | 265.4 Da LogP 2.53 TPSA 29.5 | ✓ Ro5 | Alert |
COc1ccc(/C=C2\SC(=S)N(C)C2=O)cc1
|
Proposed virtual-screening candidates from ZINC. Score = Tanimoto similarity to a known binder (0–1; higher = more similar).
| Ligand | Tanimoto | MW · LogP · TPSA | Lipinski | PAINS | SMILES |
|---|---|---|---|---|---|
| ZINC1199578 ZINC | 1.000 | 265.4 Da LogP 2.53 TPSA 29.5 | ✓ Ro5 | Alert |
COc1ccc(/C=C2\SC(=S)N(C)C2=O)cc1
|
| ZINC13548772 ZINC | 1.000 | 265.4 Da LogP 2.53 TPSA 29.5 | ✓ Ro5 | Alert |
COc1ccc(/C=C2/SC(=S)N(C)C2=O)cc1
|
| ZINC16383337 ZINC | 1.000 | 489.1 Da LogP 3.09 TPSA 49.3 | ✓ Ro5 | Alert |
O=C1NC(=S)S/C1=C/c1cc(I)c(O)c(I)c1
|
| ZINC2978066 ZINC | 0.850 | 401.5 Da LogP 3.98 TPSA 48.0 | ✓ Ro5 | Alert |
COc1ccc(OCCOc2ccc(/C=C3\SC(=S)N(C)C3=O)cc2)cc1
|
| ZINC33430444 ZINC | 0.829 | 415.5 Da LogP 4.37 TPSA 48.0 | ✓ Ro5 | Alert |
COc1ccc(OCCCOc2ccc(/C=C3\SC(=S)N(C)C3=O)cc2)cc1
|
| ZINC4755396 ZINC | 0.829 | 415.5 Da LogP 4.37 TPSA 48.0 | ✓ Ro5 | Alert |
COc1ccc(OCCCOc2ccc(/C=C3/SC(=S)N(C)C3=O)cc2)cc1
|
| ZINC1194214 ZINC | 0.805 | 393.2 Da LogP 2.49 TPSA 58.6 | ✓ Ro5 | Alert |
COc1cc(/C=C2/SC(=S)NC2=O)cc(I)c1O
|
| ZINC16195047 ZINC | 0.805 | 393.2 Da LogP 2.49 TPSA 58.6 | ✓ Ro5 | Alert |
COc1cc(/C=C2\SC(=S)NC2=O)cc(I)c1O
|
| ZINC6638255 ZINC | 0.794 | 392.6 Da LogP 3.35 TPSA 40.6 | ✓ Ro5 | Alert |
CN1C(=O)/C(=C\c2ccc(/C=C3/SC(=S)N(C)C3=O)cc2)SC…
|
| ZINC161099 ZINC | 0.762 | 238.3 Da LogP 3.53 TPSA 34.1 | ✓ Ro5 | ✓ Clean |
O=C(CCC(=O)c1ccccc1)c1ccccc1
|
| ZINC13786244 ZINC | 0.756 | 411.5 Da LogP 4.15 TPSA 55.8 | ✓ Ro5 | Alert |
COc1ccc(/C=C/C(=O)Oc2ccc(/C=C3/SC(=S)N(C)C3=O)c…
|
| ZINC994429 ZINC | 0.750 | 407.3 Da LogP 2.88 TPSA 58.6 | ✓ Ro5 | Alert |
CCOc1cc(/C=C2/SC(=S)NC2=O)cc(I)c1O
|
| ZINC15011493 ZINC | 0.744 | 295.4 Da LogP 2.53 TPSA 38.8 | ✓ Ro5 | Alert |
COc1cc(/C=C2/SC(=S)N(C)C2=O)cc(OC)c1
|
| ZINC2931348 ZINC | 0.744 | 295.4 Da LogP 2.53 TPSA 38.8 | ✓ Ro5 | Alert |
COc1cc(/C=C2\SC(=S)N(C)C2=O)cc(OC)c1
|
| ZINC12341774 ZINC | 0.737 | 249.3 Da LogP 2.36 TPSA 46.6 | ✓ Ro5 | ✓ Clean |
COc1ccc(/C=C2\SC(=O)N(C)C2=O)cc1
|
| ZINC13140379 ZINC | 0.737 | 265.4 Da LogP 2.50 TPSA 49.3 | ✓ Ro5 | Alert |
Cc1cc(/C=C2/SC(=S)NC2=O)cc(C)c1O
|
| ZINC1579723 ZINC | 0.737 | 265.4 Da LogP 2.50 TPSA 49.3 | ✓ Ro5 | Alert |
Cc1cc(/C=C2\SC(=S)NC2=O)cc(C)c1O
|
| ZINC1154466 ZINC | 0.732 | 293.4 Da LogP 3.31 TPSA 29.5 | ✓ Ro5 | Alert |
CCCN1C(=O)/C(=C/c2ccc(OC)cc2)SC1=S
|
| ZINC33286143 ZINC | 0.732 | 279.4 Da LogP 2.92 TPSA 29.5 | ✓ Ro5 | Alert |
CCOc1ccc(/C=C2\SC(=S)N(C)C2=O)cc1
|
| ZINC5863305 ZINC | 0.732 | 293.4 Da LogP 3.31 TPSA 29.5 | ✓ Ro5 | Alert |
CCCN1C(=O)/C(=C\c2ccc(OC)cc2)SC1=S
|
| ZINC975156 ZINC | 0.732 | 279.4 Da LogP 2.92 TPSA 29.5 | ✓ Ro5 | Alert |
CCOc1ccc(/C=C2/SC(=S)N(C)C2=O)cc1
|
| ZINC1083143 ZINC | 0.725 | 266.3 Da LogP 1.77 TPSA 55.6 | ✓ Ro5 | Alert |
COc1ccc(/C=C2/SC(=S)N(N)C2=O)cc1
|
| ZINC13680667 ZINC | 0.725 | 266.3 Da LogP 1.77 TPSA 55.6 | ✓ Ro5 | Alert |
COc1ccc(/C=C2\SC(=S)N(N)C2=O)cc1
|
| ZINC3998460 ZINC | 0.718 | 404.4 Da LogP 3.37 TPSA 92.3 | ✓ Ro5 | Alert |
O=C1C(Nc2ccccc2)=C(NS(=O)(=O)c2ccccc2)C(=O)c2cc…
|
| ZINC1176105 ZINC | 0.714 | 293.4 Da LogP 2.44 TPSA 46.6 | ✓ Ro5 | Alert |
CC(=O)Oc1ccc(/C=C2/SC(=S)N(C)C2=O)cc1
|
| ZINC16928030 ZINC | 0.714 | 288.3 Da LogP 3.01 TPSA 75.6 | ✓ Ro5 | ✓ Clean |
c1ccc2c(NNc3nncc4ccccc34)nncc2c1
|
| ZINC22058201 ZINC | 0.714 | 273.3 Da LogP 3.32 TPSA 63.6 | ✓ Ro5 | ✓ Clean |
c1ccc2c(Nc3nncc4ccccc34)nncc2c1
|
| ZINC225391748 ZINC | 0.714 | 291.4 Da LogP 3.08 TPSA 29.5 | ✓ Ro5 | Alert |
COc1ccc(/C=C/C=C2\SC(=S)N(C)C2=O)cc1
|
| ZINC4015002 ZINC | 0.714 | 265.4 Da LogP 2.53 TPSA 29.5 | ✓ Ro5 | Alert |
COc1cccc(/C=C2\SC(=S)N(C)C2=O)c1
|
| ZINC41077628 ZINC | 0.714 | 329.4 Da LogP 1.86 TPSA 63.7 | ✓ Ro5 | Alert |
CN1C(=O)/C(=C/c2ccc(OS(C)(=O)=O)cc2)SC1=S
|
| ZINC4919433 ZINC | 0.714 | 301.3 Da LogP 3.12 TPSA 29.5 | ✓ Ro5 | Alert |
CN1C(=O)/C(=C\c2ccc(OC(F)F)cc2)SC1=S
|
| ZINC12341792 ZINC | 0.711 | 249.4 Da LogP 2.83 TPSA 20.3 | ✓ Ro5 | Alert |
Cc1ccc(/C=C2/SC(=S)N(C)C2=O)cc1
|
| ZINC12341793 ZINC | 0.711 | 249.4 Da LogP 2.83 TPSA 20.3 | ✓ Ro5 | Alert |
Cc1ccc(/C=C2\SC(=S)N(C)C2=O)cc1
|
| ZINC5046005 ZINC | 0.711 | 263.3 Da LogP 2.33 TPSA 37.4 | ✓ Ro5 | Alert |
CN1C(=O)/C(=C\c2ccc(C=O)cc2)SC1=S
|
| ZINC966595 ZINC | 0.711 | 263.3 Da LogP 2.33 TPSA 37.4 | ✓ Ro5 | Alert |
CN1C(=O)/C(=C/c2ccc(C=O)cc2)SC1=S
|
| ZINC1083145 ZINC | 0.707 | 270.8 Da LogP 2.41 TPSA 46.3 | ✓ Ro5 | Alert |
NN1C(=O)/C(=C\c2ccccc2Cl)SC1=S
|
| ZINC1083146 ZINC | 0.707 | 270.8 Da LogP 2.41 TPSA 46.3 | ✓ Ro5 | Alert |
NN1C(=O)/C(=C/c2ccccc2Cl)SC1=S
|
| ZINC1236474 ZINC | 0.707 | 357.5 Da LogP 4.11 TPSA 38.8 | ✓ Ro5 | Alert |
COc1ccc(/C=C2/SC(=S)N(c3ccc(OC)cc3)C2=O)cc1
|
| ZINC12625250 ZINC | 0.707 | 357.5 Da LogP 4.11 TPSA 38.8 | ✓ Ro5 | Alert |
COc1ccc(/C=C2\SC(=S)N(c3ccc(OC)cc3)C2=O)cc1
|
| ZINC18063985 ZINC | 0.707 | 307.4 Da LogP 3.69 TPSA 29.5 | ✓ Ro5 | Alert |
COc1ccc(/C=C2/SC(=S)N(C(C)(C)C)C2=O)cc1
|
| ZINC5371316 ZINC | 0.707 | 307.4 Da LogP 3.69 TPSA 29.5 | ✓ Ro5 | Alert |
COc1ccc(/C=C2\SC(=S)N(C(C)(C)C)C2=O)cc1
|
| ZINC13940825 ZINC | 0.702 | 401.5 Da LogP 3.98 TPSA 48.0 | ✓ Ro5 | Alert |
COc1cccc(OCCOc2ccc(/C=C3/SC(=S)N(C)C3=O)cc2)c1
|
| ZINC4603395 ZINC | 0.702 | 401.5 Da LogP 3.98 TPSA 48.0 | ✓ Ro5 | Alert |
COc1cccc(OCCOc2ccc(/C=C3\SC(=S)N(C)C3=O)cc2)c1
|
| ZINC16115900 ZINC | 0.698 | 293.4 Da LogP 3.31 TPSA 29.5 | ✓ Ro5 | Alert |
CCCOc1ccc(/C=C2\SC(=S)N(C)C2=O)cc1
|
| ZINC16692938 ZINC | 0.698 | 295.4 Da LogP 1.89 TPSA 49.8 | ✓ Ro5 | Alert |
COc1ccc(/C=C2\SC(=S)N(CCO)C2=O)cc1
|
| ZINC1903969 ZINC | 0.698 | 291.4 Da LogP 3.08 TPSA 29.5 | ✓ Ro5 | Alert |
C=CCOc1ccc(/C=C2\SC(=S)N(C)C2=O)cc1
|
| ZINC2361529 ZINC | 0.698 | 295.4 Da LogP 1.89 TPSA 49.8 | ✓ Ro5 | Alert |
COc1ccc(/C=C2/SC(=S)N(CCO)C2=O)cc1
|
| ZINC2677956 ZINC | 0.698 | 293.4 Da LogP 3.31 TPSA 29.5 | ✓ Ro5 | Alert |
CCCOc1ccc(/C=C2/SC(=S)N(C)C2=O)cc1
|
| ZINC2820085 ZINC | 0.698 | 309.4 Da LogP 2.54 TPSA 38.8 | ✓ Ro5 | Alert |
COCCN1C(=O)/C(=C/c2ccc(OC)cc2)SC1=S
|
| ZINC6008159 ZINC | 0.698 | 309.4 Da LogP 2.54 TPSA 38.8 | ✓ Ro5 | Alert |
COCCN1C(=O)/C(=C\c2ccc(OC)cc2)SC1=S
|
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.