FAIRMol

OHD_TB2022_23

Pose ID 9541 Compound 218 Pose 55

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T15
T. brucei TR (Dimer cleft site) T. brucei Dimer cleft site
Ligand OHD_TB2022_23
PDB9IFF

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
24.5 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.85, Jaccard 0.65
Burial
76%
Hydrophobic fit
87%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.670 kcal/mol/HA) ✓ Good fit quality (FQ -6.59) ✓ Good H-bonds (3 bonds) ✓ Deep burial (76% SASA buried) ✓ Lipophilic contacts well-matched (87%) ✗ High strain energy (24.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-21.446
kcal/mol
LE
-0.670
kcal/mol/HA
Fit Quality
-6.59
FQ (Leeson)
HAC
32
heavy atoms
MW
430
Da
LogP
3.81
cLogP
Strain ΔE
24.5 kcal/mol
SASA buried
76%
Lipo contact
87% BSA apolar/total
SASA unbound
753 Ų
Apolar buried
498 Ų

Interaction summary

HB 3 HY 24 PI 0 CLASH 1

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

Final rank2.495Score-21.446
Inter norm-0.728Intra norm0.058
Top1000noExcludedno
Contacts15H-bonds3
Artifact reasongeometry warning; 13 clashes; 1 protein clash; moderate strain Δ 24.4
Residues
ALA209 ALA90 GLY214 GLY215 GLY85 LEU73 LYS211 LYS89 MET70 PHE83 PRO187 PRO212 PRO213 TYR210 VAL88

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name9IFFContacts13
PoseOpen native poseHB0
IFP residues
ALA209 ARG74 ASN208 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 VAL88
Current overlap11Native recall0.85
Jaccard0.65RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

489 residues
Protein targetT15Atoms7420
Residues489Chains1
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:319; TYR:294; ASP:264; MET:204

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
80 1.5674787099113439 -0.915082 -24.6346 4 16 0 0.00 - - no Open
55 2.494660793218931 -0.728338 -21.4464 3 15 11 0.85 - - 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 -21.446kcal/mol
Ligand efficiency (LE) -0.6702kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.591
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 429.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.81
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 24.45kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 58.82kcal/mol
Minimised FF energy 34.37kcal/mol

SASA & burial

✓ computed
SASA (unbound) 753.2Ų
Total solvent-accessible surface area of free ligand
BSA total 574.1Ų
Buried surface area upon binding
BSA apolar 498.4Ų
Hydrophobic contacts buried
BSA polar 75.6Ų
Polar contacts buried
Fraction buried 76.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 86.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3105.2Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1567.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)