FAIRMol

OHD_MAC_50

Pose ID 9961 Compound 963 Pose 475

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_MAC_50
PDB9IFF

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 strong SASA done
Strain ΔE
59.6 kcal/mol
Protein clashes
0
Internal clashes
15
Native overlap
contact recall 0.92, Jaccard 0.67
Burial
70%
Hydrophobic fit
84%
Reason: 15 internal clashes, strain 59.6 kcal/mol
strain ΔE 59.6 kcal/mol 15 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.690 kcal/mol/HA) ✓ Good fit quality (FQ -6.96) ✓ Good H-bonds (4 bonds) ✓ Deep burial (70% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Extreme strain energy (59.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-24.138
kcal/mol
LE
-0.690
kcal/mol/HA
Fit Quality
-6.96
FQ (Leeson)
HAC
35
heavy atoms
MW
476
Da
LogP
3.39
cLogP
Strain ΔE
59.6 kcal/mol
SASA buried
70%
Lipo contact
84% BSA apolar/total
SASA unbound
827 Ų
Apolar buried
488 Ų

Interaction summary

HB 4 HY 24 PI 1 CLASH 0

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

No clash · clashes detected for this pose.
Final rank3.737Score-24.138
Inter norm-0.706Intra norm0.016
Top1000noExcludedno
Contacts17H-bonds4
Artifact reasongeometry warning; 15 clashes; 2 protein clashes; high strain Δ 58.8
Residues
ALA209 ALA77 ALA90 ARG74 GLU82 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 TRP81 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 overlap12Native recall0.92
Jaccard0.67RMSD-
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
381 1.707511847695487 -0.609265 -19.0824 5 18 0 0.00 - - no Open
399 2.1443077612880965 -0.839079 -27.2837 5 19 0 0.00 - - no Open
430 2.7575778759670455 -0.781358 -24.0513 4 24 0 0.00 - - no Open
450 3.208459340574507 -0.689859 -19.377 6 16 0 0.00 - - no Open
475 3.7368753618242496 -0.706044 -24.1383 4 17 12 0.92 - - 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 -24.138kcal/mol
Ligand efficiency (LE) -0.6897kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.956
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 35HA

Physicochemical properties

Molecular weight 475.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.39
Lipinski: ≤ 5
Rotatable bonds 12

Conformational strain (MMFF94s)

Strain energy (ΔE) 59.60kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 147.80kcal/mol
Minimised FF energy 88.20kcal/mol

SASA & burial

✓ computed
SASA (unbound) 827.4Ų
Total solvent-accessible surface area of free ligand
BSA total 579.6Ų
Buried surface area upon binding
BSA apolar 487.7Ų
Hydrophobic contacts buried
BSA polar 91.9Ų
Polar contacts buried
Fraction buried 70.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3163.9Ų
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 1544.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)