FAIRMol

OSA_Lib_349

Pose ID 12341 Compound 275 Pose 140

DB fairmolDocking 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 OSA_Lib_349
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
20.7 kcal/mol
Protein clashes
6
Internal clashes
7
Native overlap
contact recall 0.30, Jaccard 0.20, H-bond role recall 0.20
Burial
95%
Hydrophobic fit
98%
Reason: 7 internal clashes
6 protein-contact clashes 7 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.964 kcal/mol/HA) ✓ Good fit quality (FQ -9.48) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (98%) ✗ High strain energy (20.7 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Many internal clashes (20)
Score
-30.849
kcal/mol
LE
-0.964
kcal/mol/HA
Fit Quality
-9.48
FQ (Leeson)
HAC
32
heavy atoms
MW
423
Da
LogP
4.92
cLogP
Final rank
2.1458
rank score
Inter norm
-1.005
normalised
Contacts
21
H-bonds 3
Strain ΔE
20.7 kcal/mol
SASA buried
95%
Lipo contact
98% BSA apolar/total
SASA unbound
663 Ų
Apolar buried
621 Ų

Interaction summary

HBD 1 HY 7 PI 0 CLASH 7

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

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
Jaccard0.20RMSD-
HB strict0Strict recall0.00
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.25

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
263 1.8009674821807904 -0.833852 -28.7439 0 18 0 0.00 0.00 - no Open
140 2.145755498254063 -1.00488 -30.8494 3 21 8 0.30 0.20 - 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 -30.849kcal/mol
Ligand efficiency (LE) -0.9640kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.480
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 422.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.92
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 20.73kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 103.06kcal/mol
Minimised FF energy 82.33kcal/mol

SASA & burial

✓ computed
SASA (unbound) 663.3Ų
Total solvent-accessible surface area of free ligand
BSA total 631.6Ų
Buried surface area upon binding
BSA apolar 621.0Ų
Hydrophobic contacts buried
BSA polar 10.6Ų
Polar contacts buried
Fraction buried 95.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 98.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3252.0Ų
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 1465.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)