FAIRMol

KB_Leish_38

Pose ID 823 Compound 738 Pose 145

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T02
Human DHFR Human
Ligand KB_Leish_38
PDB5SD8

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
53.7 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.67, Jaccard 0.58, H-bond role recall 0.40
Burial
86%
Hydrophobic fit
91%
Reason: strain 53.7 kcal/mol
strain ΔE 53.7 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.649 kcal/mol/HA) ✓ Good fit quality (FQ -6.39) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (91%) ✗ Extreme strain energy (53.7 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (12)
Score
-20.785
kcal/mol
LE
-0.649
kcal/mol/HA
Fit Quality
-6.39
FQ (Leeson)
HAC
32
heavy atoms
MW
433
Da
LogP
3.36
cLogP
Strain ΔE
53.7 kcal/mol
SASA buried
86%
Lipo contact
91% BSA apolar/total
SASA unbound
727 Ų
Apolar buried
567 Ų

Interaction summary

HB 2 HY 24 PI 3 CLASH 1
Final rank1.096Score-20.785
Inter norm-0.846Intra norm0.196
Top1000noExcludedno
Contacts17H-bonds2
Artifact reasongeometry warning; 12 clashes; 3 protein contact clashes; high strain Δ 53.5
Residues
ALA10 ARG29 ASN65 GLN36 ILE61 ILE8 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 PRO62 THR57 TYR122 VAL116 VAL9

Protein summary

200 residues
Protein targetT02Atoms3128
Residues200Chains2
Residue summaryLYS:374; LEU:361; GLU:240; VAL:224; ARG:192; PHE:180; ILE:171; PRO:168; ASN:140; SER:132; TYR:126; GLN:119; ASP:108; MET:102; THR:98; GLY:91

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:NAP201

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5SD8Contacts21
PoseOpen native poseHB0
IFP residues
ALA10 ASN65 ASP22 GLN36 GLU31 GLY117 GLY21 ILE61 ILE8 LEU23 LEU68 NAP201 PHE32 PHE35 PRO62 SER60 THR137 THR57 TYR122 VAL116 VAL9
Current overlap14Native recall0.67
Jaccard0.58RMSD-
HB strict2Strict recall0.40
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
145 1.0964877413585934 -0.845584 -20.7847 2 17 14 0.67 0.40 - no Current
149 4.01456155910064 -0.586588 -20.0808 3 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 -20.785kcal/mol
Ligand efficiency (LE) -0.6495kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.387
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 432.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.36
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 53.69kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 65.06kcal/mol
Minimised FF energy 11.37kcal/mol

SASA & burial

✓ computed
SASA (unbound) 726.8Ų
Total solvent-accessible surface area of free ligand
BSA total 623.6Ų
Buried surface area upon binding
BSA apolar 567.0Ų
Hydrophobic contacts buried
BSA polar 56.6Ų
Polar contacts buried
Fraction buried 85.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1758.9Ų
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 1677.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 588.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)