FAIRMol

Z48325294

Pose ID 12716 Compound 5003 Pose 515

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T19
T. brucei TR (NADPH binding site) T. brucei NADPH binding site
Ligand Z48325294
PDB2WOV

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native mixed SASA done
Strain ΔE
61.9 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.30, Jaccard 0.21, H-bond role recall 0.00
Burial
95%
Hydrophobic fit
86%
Reason: strain 61.9 kcal/mol
strain ΔE 61.9 kcal/mol 2 protein-contact clashes 3 intramolecular clashes 35% of hydrophobic surface appears solvent-exposed (7/20 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.391 kcal/mol/HA) ✓ Good fit quality (FQ -12.81) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (86%) ✗ Extreme strain energy (61.9 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Many internal clashes (12)
Score
-36.158
kcal/mol
LE
-1.391
kcal/mol/HA
Fit Quality
-12.81
FQ (Leeson)
HAC
26
heavy atoms
MW
402
Da
LogP
5.63
cLogP
Strain ΔE
61.9 kcal/mol
SASA buried
95%
Lipo contact
86% BSA apolar/total
SASA unbound
629 Ų
Apolar buried
515 Ų

Interaction summary

HB 2 HY 23 PI 2 CLASH 3 ⚠ Exposure 35%

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

⚠️Partial hydrophobic solvent exposure
35% of hydrophobic surface appears solvent-exposed (7/20 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
Non-polar atoms 20 Buried (contacted) 13 Exposed 7 LogP 5.63 H-bonds 2
Exposed fragments: phenyl (5/6 atoms exposed)aliphatic chain/group (2 atoms exposed)
Final rank0.870Score-36.158
Inter norm-1.212Intra norm-0.178
Top1000noExcludedno
Contacts19H-bonds2
Artifact reasongeometry warning; 12 clashes; 4 protein contact clashes; 1 cofactor-context clash; high strain Δ 61.9
Residues
ARG287 ASP327 CYS57 GLU202 GLY56 ILE199 ILE206 LEU334 LYS60 MET333 NDP800 PHE182 PHE203 PHE367 SER162 SER178 THR335 THR51 VAL55

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name2WOVContacts27
PoseOpen native poseHB0
IFP residues
ALA284 ALA365 ARG222 ARG228 ARG287 ASN223 ASN254 GLN165 GLU202 GLY195 GLY196 GLY197 GLY286 ILE199 ILE285 LEU227 LEU334 LYS60 MET333 NDP800 PHE198 PHE367 PRO167 SER200 TYR221 VAL194 VAL366
Current overlap8Native recall0.30
Jaccard0.21RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

493 residues
Protein targetT19Atoms7541
Residues493Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:330; TYR:294; ASP:264; MET:221

Receptor context

1 kept / 0 excluded
Receptor context filtering: interactions and SASA are computed against protein atoms plus allowed cofactors/ions. Native ligand-like HETATM partners are excluded from scoring.
Kept context 1 Excluded HETATM 0
Kept cofactors / ions
C:NDP800

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
515 0.8702289118380384 -1.21221 -36.1577 2 19 8 0.30 0.00 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -36.158kcal/mol
Ligand efficiency (LE) -1.3907kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.813
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 402.0Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.63
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 61.87kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 129.06kcal/mol
Minimised FF energy 67.19kcal/mol

SASA & burial

✓ computed
SASA (unbound) 629.1Ų
Total solvent-accessible surface area of free ligand
BSA total 596.3Ų
Buried surface area upon binding
BSA apolar 515.0Ų
Hydrophobic contacts buried
BSA polar 81.3Ų
Polar contacts buried
Fraction buried 94.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 86.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3147.2Ų
SASA_nonpolar(complex) − SASA_nonpolar(receptor) − SASA_nonpolar(ligand free). Negative = non-polar surface buried upon binding. Requires full polarity-decomposed SASA computation.
Receptor non-polar SASA 4064.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1465.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)