FAIRMol

OHD_TB2020_20

Pose ID 7492 Compound 2878 Pose 40

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T12
T. brucei R5P T. brucei
Ligand OHD_TB2020_20
PDB6FXS

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
43.8 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.94, Jaccard 0.79, H-bond role recall 0.50
Burial
70%
Hydrophobic fit
75%
Reason: strain 43.8 kcal/mol
strain ΔE 43.8 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.783 kcal/mol/HA) ✓ Good fit quality (FQ -7.56) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (70% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Extreme strain energy (43.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-23.503
kcal/mol
LE
-0.783
kcal/mol/HA
Fit Quality
-7.56
FQ (Leeson)
HAC
30
heavy atoms
MW
454
Da
LogP
3.38
cLogP
Strain ΔE
43.8 kcal/mol
SASA buried
70%
Lipo contact
75% BSA apolar/total
SASA unbound
719 Ų
Apolar buried
379 Ų

Interaction summary

HB 10 HY 10 PI 4 CLASH 1
Final rank4.835Score-23.503
Inter norm-0.900Intra norm0.116
Top1000noExcludedno
Contacts18H-bonds10
Artifact reasongeometry warning; 12 clashes; 3 protein clashes; high strain Δ 43.8
Residues
ARG140 ARG144 ASN106 HIS105 HIS141 MET101 TYR97 ARG116 ARG46 ASP13 CYS72 GLY73 GLY77 HIS14 ILE15 ILE76 SER74 TYR49

Protein summary

302 residues
Protein targetT12Atoms4598
Residues302Chains2
Residue summaryARG:576; ILE:456; VAL:448; GLU:360; ALA:340; LEU:304; TYR:252; HIS:204; PRO:196; THR:196; GLY:182; LYS:176; ASP:168; PHE:160; MET:153; SER:121

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
A:CSD72

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXSContacts16
PoseOpen native poseHB0
IFP residues
ARG140 ARG144 ASN106 HIS105 HIS141 ARG46 ASP13 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 SER74 TYR49
Current overlap15Native recall0.94
Jaccard0.79RMSD-
HB strict7Strict recall0.58
HB same residue+role5HB role recall0.50
HB same residue5HB residue recall0.50

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
40 1.9091653108304245 -1.01825 -26.4155 5 16 0 0.00 0.00 - no Open
40 4.835466682322016 -0.899722 -23.5027 10 18 15 0.94 0.50 - 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 -23.503kcal/mol
Ligand efficiency (LE) -0.7834kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.557
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 453.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.38
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 43.81kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 78.01kcal/mol
Minimised FF energy 34.20kcal/mol

SASA & burial

✓ computed
SASA (unbound) 719.3Ų
Total solvent-accessible surface area of free ligand
BSA total 506.3Ų
Buried surface area upon binding
BSA apolar 379.1Ų
Hydrophobic contacts buried
BSA polar 127.2Ų
Polar contacts buried
Fraction buried 70.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2251.4Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 772.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)