FAIRMol

KB_Leish_165

Pose ID 3520 Compound 2500 Pose 134

DB fairmolDocking 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 KB_Leish_165
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
42.3 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.62, Jaccard 0.54, H-bond role recall 0.00
Burial
96%
Hydrophobic fit
90%
Reason: strain 42.3 kcal/mol
strain ΔE 42.3 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.631 kcal/mol/HA) ✓ Good fit quality (FQ -6.03) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Extreme strain energy (42.3 kcal/mol) ✗ No H-bonds detected ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (15)
Score
-18.314
kcal/mol
LE
-0.631
kcal/mol/HA
Fit Quality
-6.03
FQ (Leeson)
HAC
29
heavy atoms
MW
391
Da
LogP
1.11
cLogP
Final rank
1.1826
rank score
Inter norm
-0.777
normalised
Contacts
16
H-bonds 0
Strain ΔE
42.3 kcal/mol
SASA buried
96%
Lipo contact
90% BSA apolar/total
SASA unbound
654 Ų
Apolar buried
568 Ų

Interaction summary

HB 0 HY 10 PI 4 CLASH 2

HBD/HBA · H-bonds (geometric)

No hbd/hba · h-bonds (geometric) detected for this pose.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

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 overlap13Native recall0.62
Jaccard0.54RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
134 1.1826020953095857 -0.776844 -18.3142 0 16 13 0.62 0.00 - no Current
143 4.2021157302736105 -0.789196 -20.2438 6 11 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 -18.314kcal/mol
Ligand efficiency (LE) -0.6315kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.028
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 391.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.11
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 42.30kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 83.13kcal/mol
Minimised FF energy 40.83kcal/mol

SASA & burial

✓ computed
SASA (unbound) 654.4Ų
Total solvent-accessible surface area of free ligand
BSA total 631.7Ų
Buried surface area upon binding
BSA apolar 568.4Ų
Hydrophobic contacts buried
BSA polar 63.3Ų
Polar contacts buried
Fraction buried 96.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1816.6Ų
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 578.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)