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.
Main supporting evidence
Risks to review
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 (%)
- 40.741 Lower values reduce human off-target concern.
- Human E-value
- 1.43e-19
- Gut microbiome similarity
- 2.4% 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.
Localization
- Localization
- Cytoplasmic
Structure confidence
- ColabFold pLDDT
- 96.6 0-100 confidence; >70 supports local structural interpretation.
Binding-site evidence
AlphaFold DB / UniProt modelThe selected pocket score is the FPocket value used for ranking after applying the curated structure priority. It estimates small-molecule pocket quality; it is not experimental binding evidence. The 3D viewer may show a different loaded structure, so visible pockets can differ.
Cross-references
External database identifiers for this protein, its structures, ligands, and metabolic reactions.
Sequence
Sequence
Primary amino-acid sequence viewer.
MDRIIEKLDRGWWVVSHEQKLWLPGGELPHGEAVNFDLVGQHALHIGEWQGESVWMVRQDRRHDMGSLRQVLDQDPGLFQLAGRGIQLAEFYRSHKFCGYCGHPMHASKSEWAMLCSHCRERYYPQIAPCIIVAIRRDDAILLAQHTRHRNGVHTVLAGFVEVGETLEQAVAREVMEESGIRVKNLRYVTSQPWPFPQSLMTAFMADYADGEIVVDKKELLTADWYRYDDLPLLPPPGTVARRLIEDTVAMCRAEFE
Functional annotations
Enzyme classification and Gene Ontology terms linked to this protein.
Gene Ontology (GO)
11- GO:0000210 Catalysis of the reaction: NAD+ + H2O = AMP + NMN.
- GO:0046872 Binding to a metal ion.
- GO:0016787 Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc.
- GO:0005829 The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
- GO:0000287 Binding to a magnesium (Mg) ion.
- GO:0030145 Binding to a manganese ion (Mn).
- GO:0035529 Catalysis of the reaction: NADH + H2O = AMP + NMNH + 2 H+.
- GO:0110153 Catalysis of the reaction: a 5'-end NAD+-phospho-ribonucleoside in mRNA + H2O = a 5'-end phospho-adenosine-phospho-ribonucleoside in mRNA + beta-nicotinamide D-ribonucleotide + 2 H+.
- GO:0008270 Binding to a zinc ion (Zn).
- GO:0019677 The chemical reactions and pathways resulting in the breakdown of nicotinamide adenine dinucleotide (NAD+), a coenzyme that interconverts with its reduced form, NADH, in many redox and catabolic reactions.
- GO:0006742 The chemical reactions and pathways resulting in the breakdown of nicotinamide adenine dinucleotide phosphate (NADP+), a coenzyme that interconverts with its reduced form, NADPH, in many redox and biosynthetic reactions.
Sequence domains and features
Domain and signature matches imported from InterPro and related databases.
Show feature table
| Start | End | DB | Term | Name |
|---|---|---|---|---|
| 1 | 125 | Gene3D | G3DSA:3.90.79.20 | - |
| 3 | 96 | SUPERFAMILY | SSF55811 | Nudix |
| 3 | 96 | InterPro | IPR015797 | NUDIX hydrolase-like domain superfamily |
| 62 | 252 | PANTHER | PTHR42904 | NUDIX HYDROLASE, NUDC SUBFAMILY |
| 126 | 257 | Gene3D | G3DSA:3.90.79.10 | Nucleoside Triphosphate Pyrophosphohydrolase |
| 132 | 234 | Pfam | PF00293 | NUDIX domain |
| 132 | 234 | InterPro | IPR000086 | NUDIX hydrolase domain |
| 129 | 250 | CDD | cd03429 | NADH_pyrophosphatase |
| 1 | 257 | Hamap | MF_00297 | NAD-capped RNA hydrolase NudC [nudC]. |
| 1 | 257 | InterPro | IPR022925 | NAD-capped RNA hydrolase NudC |
| 125 | 248 | ProSiteProfiles | PS51462 | Nudix hydrolase domain profile. |
| 125 | 248 | InterPro | IPR000086 | NUDIX hydrolase domain |
| 1 | 125 | FunFam | G3DSA:3.90.79.20:FF:000001 | NADH pyrophosphatase |
| 159 | 180 | ProSitePatterns | PS00893 | Nudix box signature. |
| 159 | 180 | InterPro | IPR020084 | NUDIX hydrolase, conserved site |
| 79 | 241 | SUPERFAMILY | SSF55811 | Nudix |
| 79 | 241 | InterPro | IPR015797 | NUDIX hydrolase-like domain superfamily |
| 93 | 124 | Pfam | PF09297 | NADH pyrophosphatase zinc ribbon domain |
| 93 | 124 | InterPro | IPR015376 | Zinc ribbon, NADH pyrophosphatase |
| 126 | 257 | FunFam | G3DSA:3.90.79.10:FF:000004 | NADH pyrophosphatase |
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
Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
Residue sets
Binding pockets · P2Rank
Probability: high ≥ 0.5 · medium 0.2–0.49 · low < 0.2
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_A0A0H3GHB2
|
AlphaFold DB | — | — | full sequence | — | Viewing |
|
ColabFold
KP13_01374
|
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 ligand evidence is 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 |
|---|---|---|---|---|---|---|
| 2ME RCSB PDB | Q9CA40 | 60.1 Da LogP 0.65 TPSA 9.2 | ✓ Ro5 | ✓ Clean |
CCOC
|
|
| 8DG RCSB PDB | Q9CA40 | 523.2 Da LogP -2.01 TPSA 298.8 | 3 viol. | ✓ Clean |
C1[C@@H]([C@H](O[C@H]1N2C3=C(C(=O)NC(=N3)N)NC2=…
|
|
| GPP RCSB PDB | Q9CA40 | 314.2 Da LogP 2.91 TPSA 113.3 | ✓ Ro5 | ✓ Clean |
CC(=CCC/C(=C/CO[P@@](=O)(O)OP(=O)(O)O)/C)C
|
|
| IPR RCSB PDB | Q9CA40 | 248.1 Da LogP 1.26 TPSA 113.3 | ✓ Ro5 | ✓ Clean |
CC(C)CCO[P@@](=O)(O)OP(=O)(O)O
|
|
| MGP RCSB PDB | Q9BQG2 | 538.2 Da LogP -2.91 TPSA 290.1 | 3 viol. | ✓ Clean |
C[n+]1cn(c2c1C(=O)NC(=N2)N)[C@H]3[C@@H]([C@@H](…
|
|
| NH4 RCSB PDB | Q9CA40 | 18.0 Da LogP 0.38 TPSA 36.5 | ✓ Ro5 | ✓ Clean |
[NH4+]
|
|
| NMN RCSB PDB | P32664 | 335.2 Da LogP -2.20 TPSA 163.4 | ✓ Ro5 | ✓ Clean |
c1cc(c[n+](c1)[C@H]2[C@@H]([C@@H]([C@H](O2)COP(…
|
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).
No ChEMBL hits found through similar proteins.
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 |
|---|---|---|---|---|---|
| ZINC12503278 ZINC | 1.000 | 335.2 Da LogP -2.20 TPSA 163.4 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@H](COP(=O)(O)O)[C@@H…
|
| ZINC1532667 ZINC | 1.000 | 335.2 Da LogP -2.20 TPSA 163.4 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@H]2O[C@@H](COP(=O)(O)O)[C@H]…
|
| ZINC2545161 ZINC | 1.000 | 335.2 Da LogP -2.20 TPSA 163.4 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@@H](COP(=O)(O)O)[C@H…
|
| ZINC2579357 ZINC | 1.000 | 248.1 Da LogP 1.26 TPSA 113.3 | ✓ Ro5 | ✓ Clean |
CC(C)CCO[P@](=O)(O)OP(=O)(O)O
|
| ZINC3870109 ZINC | 1.000 | 335.2 Da LogP -2.20 TPSA 163.4 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@@H](COP(=O)(O)O)[C@@…
|
| ZINC40465856 ZINC | 1.000 | 335.2 Da LogP -2.20 TPSA 163.4 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@H](COP(=O)(O)O)[C@H]…
|
| ZINC40762833 ZINC | 1.000 | 335.2 Da LogP -2.20 TPSA 163.4 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@H]2O[C@H](COP(=O)(O)O)[C@@H]…
|
| ZINC4228273 ZINC | 1.000 | 335.2 Da LogP -2.20 TPSA 163.4 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@H](COP(=O)(O)O)[C@@H…
|
| ZINC77311638 ZINC | 1.000 | 335.2 Da LogP -2.20 TPSA 163.4 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@H](COP(=O)(O)O)[C@H]…
|
| ZINC8215849 ZINC | 1.000 | 314.2 Da LogP 2.91 TPSA 113.3 | ✓ Ro5 | ✓ Clean |
CC(C)=CCC/C(C)=C/CO[P@@](=O)(O)OP(=O)(O)O
|
| ZINC12494625 ZINC | 0.969 | 382.3 Da LogP 4.63 TPSA 113.3 | ✓ Ro5 | ✓ Clean |
CC(C)=CCC/C(C)=C/CC/C(C)=C/CO[P@@](=O)(O)OP(=O)…
|
| ZINC2356589248 ZINC | 0.969 | 382.3 Da LogP 4.63 TPSA 113.3 | ✓ Ro5 | ✓ Clean |
CC(C)=CCCC(C)=CCCC(C)=CCO[P@](=O)(O)OP(=O)(O)O
|
| ZINC34661063 ZINC | 0.939 | 394.2 Da LogP 3.02 TPSA 159.8 | ✓ Ro5 | ✓ Clean |
CC(C)=CCC/C(C)=C/CO[P@@](=O)(O)O[P@@](=O)(O)OP(…
|
| ZINC8218174 ZINC | 0.912 | 462.3 Da LogP 4.75 TPSA 159.8 | ✓ Ro5 | ✓ Clean |
CC(C)=CCC/C(C)=C/CC/C(C)=C/CO[P@@](=O)(O)O[P@@]…
|
| ZINC4095572 ZINC | 0.809 | 336.2 Da LogP -1.60 TPSA 157.6 | ✓ Ro5 | ✓ Clean |
O=C(O)c1ccc[n+]([C@@H]2O[C@H](COP(=O)(O)O)[C@@H…
|
| ZINC77311659 ZINC | 0.809 | 336.2 Da LogP -1.60 TPSA 157.6 | ✓ Ro5 | ✓ Clean |
O=C(O)c1ccc[n+]([C@@H]2O[C@H](COP(=O)(O)O)[C@H]…
|
| ZINC77311660 ZINC | 0.809 | 336.2 Da LogP -1.60 TPSA 157.6 | ✓ Ro5 | ✓ Clean |
O=C(O)c1ccc[n+]([C@@H]2O[C@H](COP(=O)(O)O)[C@H]…
|
| ZINC77311661 ZINC | 0.809 | 336.2 Da LogP -1.60 TPSA 157.6 | ✓ Ro5 | ✓ Clean |
O=C(O)c1ccc[n+]([C@@H]2O[C@H](COP(=O)(O)O)[C@@H…
|
| ZINC25756940 ZINC | 0.760 | 331.3 Da LogP 0.35 TPSA 123.0 | ✓ Ro5 | ✓ Clean |
C[C@@H]1[C@@H](COP(=O)(O)O)O[C@@H]([n+]2cccc(C(…
|
| ZINC1532829 ZINC | 0.758 | 234.2 Da LogP 2.79 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CC(C)=CCC/C(C)=C/COP(=O)(O)O
|
| ZINC2556391 ZINC | 0.735 | 302.4 Da LogP 4.51 TPSA 66.8 | ✓ Ro5 | ✓ Clean |
CC(C)=CCC/C(C)=C/CC/C(C)=C/COP(=O)(O)O
|
| ZINC8215740 ZINC | 0.719 | 246.1 Da LogP 1.18 TPSA 113.3 | ✓ Ro5 | ✓ Clean |
CC(C)=CCO[P@@](=O)(O)OP(=O)(O)O
|
| ZINC12503703 ZINC | 0.708 | 427.2 Da LogP -1.42 TPSA 232.3 | 2 viol. | ✓ Clean |
Nc1nc2c(ncn2[C@@H]2C[C@H](O)[C@@H](CO[P@@](=O)(…
|
| ZINC8215878 ZINC | 0.708 | 427.2 Da LogP -1.42 TPSA 232.3 | 2 viol. | ✓ Clean |
Nc1nc2c(ncn2[C@H]2C[C@H](O)[C@@H](CO[P@@](=O)(O…
|
| ZINC1776011316 ZINC | 0.700 | 333.3 Da LogP -1.74 TPSA 154.2 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@H](CCP(=O)(O)O)[C@@H…
|
| ZINC14613564 ZINC | 0.681 | 255.2 Da LogP -2.32 TPSA 116.9 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@H](CO)[C@@H](O)[C@@H…
|
| ZINC34633968 ZINC | 0.681 | 255.2 Da LogP -2.32 TPSA 116.9 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@H]2O[C@H](CO)[C@@H](O)[C@H]2…
|
| ZINC4096036 ZINC | 0.681 | 255.2 Da LogP -2.32 TPSA 116.9 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@H](CO)[C@@H](O)[C@H]…
|
| ZINC65748069 ZINC | 0.681 | 255.2 Da LogP -2.32 TPSA 116.9 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@H](CO)[C@H](O)[C@H]2…
|
| ZINC65748073 ZINC | 0.681 | 255.2 Da LogP -2.32 TPSA 116.9 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@@H]2O[C@H](CO)[C@H](O)[C@@H]…
|
| ZINC901659 ZINC | 0.681 | 255.2 Da LogP -2.32 TPSA 116.9 | ✓ Ro5 | ✓ Clean |
NC(=O)c1ccc[n+]([C@H]2O[C@@H](CO)[C@H](O)[C@@H]…
|
| ZINC71769106 ZINC | 0.676 | 326.1 Da LogP 1.30 TPSA 159.8 | ✓ Ro5 | ✓ Clean |
CC(C)=CCO[P@@](=O)(O)O[P@@](=O)(O)OP(=O)(O)O
|
| ZINC12502182 ZINC | 0.667 | 283.2 Da LogP -2.36 TPSA 159.2 | ✓ Ro5 | ✓ Clean |
Nc1nc2c([nH]c(=O)n2[C@@H]2C[C@@H](O)[C@@H](CO)O…
|
| ZINC12502183 ZINC | 0.667 | 283.2 Da LogP -2.36 TPSA 159.2 | ✓ Ro5 | ✓ Clean |
Nc1nc2c([nH]c(=O)n2[C@H]2C[C@@H](O)[C@@H](CO)O2…
|
| ZINC12502185 ZINC | 0.667 | 283.2 Da LogP -2.36 TPSA 159.2 | ✓ Ro5 | ✓ Clean |
Nc1nc2c([nH]c(=O)n2[C@@H]2C[C@H](O)[C@@H](CO)O2…
|
| ZINC16051666 ZINC | 0.667 | 283.2 Da LogP -2.36 TPSA 159.2 | ✓ Ro5 | ✓ Clean |
Nc1nc2c([nH]c(=O)n2[C@H]2C[C@H](O)[C@@H](CO)O2)…
|
| ZINC2510814 ZINC | 0.667 | 283.2 Da LogP -2.36 TPSA 159.2 | ✓ Ro5 | ✓ Clean |
Nc1nc2c([nH]c(=O)n2[C@@H]2C[C@@H](O)[C@H](CO)O2…
|
| ZINC4533532 ZINC | 0.667 | 283.2 Da LogP -2.36 TPSA 159.2 | ✓ Ro5 | ✓ Clean |
Nc1nc2c([nH]c(=O)n2[C@@H]2C[C@H](O)[C@H](CO)O2)…
|
| ZINC71404870 ZINC | 0.657 | 230.3 Da LogP 4.23 TPSA 26.3 | ✓ Ro5 | ✓ Clean |
CC(C)=CCC/C(C)=C/COP(C)(C)=O
|
| ZINC8436838 ZINC | 0.657 | 262.1 Da LogP 0.15 TPSA 133.5 | ✓ Ro5 | ✓ Clean |
C/C(=C\CO[P@@](=O)(O)OP(=O)(O)O)CO
|
| ZINC13539354 ZINC | 0.632 | 332.2 Da LogP 3.20 TPSA 113.3 | ✓ Ro5 | ✓ Clean |
CC(C)=CCC/C(C)=C(\F)CO[P@](=O)(O)OP(=O)(O)O
|
| ZINC5811921 ZINC | 0.604 | 333.2 Da LogP -0.94 TPSA 159.5 | ✓ Ro5 | ✓ Clean |
NC(=O)c1cccc([C@H]2O[C@@H](COP(=O)(O)O)[C@@H](O…
|
| ZINC5811924 ZINC | 0.604 | 333.2 Da LogP -0.94 TPSA 159.5 | ✓ Ro5 | ✓ Clean |
NC(=O)c1cccc([C@@H]2O[C@@H](COP(=O)(O)O)[C@@H](…
|
| ZINC5811925 ZINC | 0.604 | 333.2 Da LogP -0.94 TPSA 159.5 | ✓ Ro5 | ✓ Clean |
NC(=O)c1cccc([C@H]2O[C@@H](COP(=O)(O)O)[C@@H](O…
|
| ZINC5811926 ZINC | 0.604 | 333.2 Da LogP -0.94 TPSA 159.5 | ✓ Ro5 | ✓ Clean |
NC(=O)c1cccc([C@@H]2O[C@@H](COP(=O)(O)O)[C@@H](…
|
| ZINC12296728 ZINC | 0.597 | 347.2 Da LogP -1.54 TPSA 185.8 | ✓ Ro5 | ✓ Clean |
Nc1nc2c(ncn2[C@H]2C[C@@H](O)[C@@H](COP(=O)(O)O)…
|
| ZINC13527599 ZINC | 0.597 | 347.2 Da LogP -1.54 TPSA 185.8 | ✓ Ro5 | ✓ Clean |
Nc1nc2c(ncn2[C@@H]2C[C@@H](O)[C@@H](COP(=O)(O)O…
|
| ZINC13527603 ZINC | 0.597 | 347.2 Da LogP -1.54 TPSA 185.8 | ✓ Ro5 | ✓ Clean |
Nc1nc2c(ncn2[C@@H]2C[C@H](O)[C@@H](COP(=O)(O)O)…
|
| ZINC3869846 ZINC | 0.597 | 347.2 Da LogP -1.54 TPSA 185.8 | ✓ Ro5 | ✓ Clean |
Nc1nc2c(ncn2[C@@H]2C[C@H](O)[C@H](COP(=O)(O)O)O…
|
| ZINC3869847 ZINC | 0.597 | 347.2 Da LogP -1.54 TPSA 185.8 | ✓ Ro5 | ✓ Clean |
Nc1nc2c(ncn2[C@H]2C[C@H](O)[C@H](COP(=O)(O)O)O2…
|
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.