FAIRMol

ulfkktlib_605

Pose ID 12352 Compound 5032 Pose 151

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 ulfkktlib_605
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
12.5 kcal/mol
Protein clashes
0
Internal clashes
14
Native overlap
contact recall 0.26, Jaccard 0.19, H-bond role recall 0.20
Burial
95%
Hydrophobic fit
95%
Reason: 14 internal clashes
14 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.295 kcal/mol/HA) ✓ Good fit quality (FQ -11.24) ✓ Good H-bonds (4 bonds) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (95%) ✗ Moderate strain (12.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-28.486
kcal/mol
LE
-1.295
kcal/mol/HA
Fit Quality
-11.24
FQ (Leeson)
HAC
22
heavy atoms
MW
290
Da
LogP
2.90
cLogP
Strain ΔE
12.5 kcal/mol
SASA buried
95%
Lipo contact
95% BSA apolar/total
SASA unbound
551 Ų
Apolar buried
493 Ų

Interaction summary

HB 4 HY 20 PI 0 CLASH 0
Final rank1.554Score-28.486
Inter norm-1.448Intra norm0.154
Top1000noExcludedno
Contacts17H-bonds4
Artifact reasongeometry warning; 14 clashes; 1 protein clash
Residues
ARG287 ASP327 CYS57 GLY56 ILE199 LEU334 LYS60 MET333 NDP800 PHE182 PHE203 PHE367 PRO336 SER178 THR335 THR51 VAL55

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

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 overlap7Native recall0.26
Jaccard0.19RMSD-
HB strict1Strict recall0.08
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.25

HB · H-bonds

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

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.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
151 1.554347265651788 -1.44847 -28.4863 4 17 7 0.26 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 -28.486kcal/mol
Ligand efficiency (LE) -1.2948kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.242
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 290.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.90
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.55kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 37.57kcal/mol
Minimised FF energy 25.02kcal/mol

SASA & burial

✓ computed
SASA (unbound) 550.6Ų
Total solvent-accessible surface area of free ligand
BSA total 521.8Ų
Buried surface area upon binding
BSA apolar 493.4Ų
Hydrophobic contacts buried
BSA polar 28.3Ų
Polar contacts buried
Fraction buried 94.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 94.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3116.7Ų
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 1470.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)