FAIRMol

OSA_Lib_211

Pose ID 12340 Compound 4990 Pose 139

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_211
PDB2WOV

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native mixed SASA done
Strain ΔE
14.9 kcal/mol
Protein clashes
0
Internal clashes
15
Native overlap
contact recall 0.26, Jaccard 0.17, H-bond role recall 0.40
Burial
95%
Hydrophobic fit
98%
Reason: 15 internal clashes
15 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Daphnia EC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Algae IC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Risk
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.118 kcal/mol/HA) ✓ Good fit quality (FQ -10.55) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (98%) ✗ Moderate strain (14.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-31.292
kcal/mol
LE
-1.118
kcal/mol/HA
Fit Quality
-10.55
FQ (Leeson)
HAC
28
heavy atoms
MW
417
Da
LogP
4.45
cLogP
Final rank
0.5186
rank score
Inter norm
-1.158
normalised
Contacts
21
H-bonds 2
Strain ΔE
14.9 kcal/mol
SASA buried
95%
Lipo contact
98% BSA apolar/total
SASA unbound
649 Ų
Apolar buried
602 Ų

Interaction summary

HBD 1 PC 1 HY 9 PI 0 CLASH 0

HBD/HBA · H-bonds (geometric)

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

PC · Polar contacts (possible, no H geometry)

HBD?/HBA? — heavy-atom distance only, H geometry unavailable. May be real H-bonds.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

No clash · clashes detected for this pose.

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
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 overlap7Native recall0.26
Jaccard0.17RMSD-
HB strict1Strict recall0.08
HB same residue+role2HB role recall0.40
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
139 0.518615896362834 -1.15784 -31.292 2 21 7 0.26 0.40 - 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 -31.292kcal/mol
Ligand efficiency (LE) -1.1176kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.550
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 417.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.45
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 14.93kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 75.91kcal/mol
Minimised FF energy 60.99kcal/mol

SASA & burial

✓ computed
SASA (unbound) 649.5Ų
Total solvent-accessible surface area of free ligand
BSA total 615.7Ų
Buried surface area upon binding
BSA apolar 602.5Ų
Hydrophobic contacts buried
BSA polar 13.2Ų
Polar contacts buried
Fraction buried 94.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 97.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3215.6Ų
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 1485.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)