FAIRMol

OHD_TB2020_19

Pose ID 3432 Compound 2517 Pose 46

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T06
T. brucei DHFR T. brucei
Ligand OHD_TB2020_19
PDB8RHT

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
69.7 kcal/mol
Protein clashes
4
Internal clashes
5
Native overlap
contact recall 0.71, Jaccard 0.65, H-bond role recall 0.00
Burial
94%
Hydrophobic fit
77%
Reason: strain 69.7 kcal/mol
strain ΔE 69.7 kcal/mol 4 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.521 kcal/mol/HA) ✓ Good fit quality (FQ -4.97) ✓ Good H-bonds (5 bonds) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ Extreme strain energy (69.7 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (7) ✗ Internal clashes (8)
Score
-15.098
kcal/mol
LE
-0.521
kcal/mol/HA
Fit Quality
-4.97
FQ (Leeson)
HAC
29
heavy atoms
MW
421
Da
LogP
2.01
cLogP
Strain ΔE
69.7 kcal/mol
SASA buried
94%
Lipo contact
77% BSA apolar/total
SASA unbound
722 Ų
Apolar buried
527 Ų

Interaction summary

HB 5 HY 24 PI 2 CLASH 5
Final rank1.306Score-15.098
Inter norm-0.834Intra norm0.313
Top1000noExcludedno
Contacts17H-bonds5
Artifact reasongeometry warning; 8 clashes; 7 protein contact clashes; 1 cofactor-context clash; high strain Δ 69.7
Residues
ALA34 ARG59 ASP54 GLN56 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE58 PHE94 PRO91 THR86 TYR166 VAL32 VAL33

Protein summary

223 residues
Protein targetT06Atoms3452
Residues223Chains1
Residue summaryARG:408; VAL:352; LYS:308; LEU:304; PRO:238; ILE:209; GLU:195; THR:182; SER:176; ALA:160; PHE:140; ASN:126; GLY:126; ASP:108; GLN:85; NDP:74

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:NDP301

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name8RHTContacts21
PoseOpen native poseHB0
IFP residues
ALA34 ASP54 HIS182 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE233 PHE58 PHE94 PRO91 SER89 THR184 THR86 TRP49 TYR166 TYR57 VAL32 VAL33
Current overlap15Native recall0.71
Jaccard0.65RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
46 1.3061135800995796 -0.833631 -15.0981 5 17 15 0.71 0.00 - no Current
32 2.5267981267085653 -1.1057 -28.001 7 15 0 0.00 0.00 - no Open
39 2.984454236444561 -0.957658 -27.8854 10 17 0 0.00 0.00 - no Open
54 3.3433164112676046 -0.879147 -23.3489 10 15 0 0.00 0.00 - no Open
51 3.842845825095622 -0.729544 -17.075 6 14 0 0.00 0.00 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -15.098kcal/mol
Ligand efficiency (LE) -0.5206kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -4.970
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 420.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.01
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 69.72kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 85.23kcal/mol
Minimised FF energy 15.51kcal/mol

SASA & burial

✓ computed
SASA (unbound) 721.9Ų
Total solvent-accessible surface area of free ligand
BSA total 680.5Ų
Buried surface area upon binding
BSA apolar 527.0Ų
Hydrophobic contacts buried
BSA polar 153.5Ų
Polar contacts buried
Fraction buried 94.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1785.0Ų
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 1808.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 592.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)