FAIRMol

OSA_Lib_227

Pose ID 233 Compound 137 Pose 233

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T01
Human DHFR Human
Ligand OSA_Lib_227
PDB5SD8

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
37.5 kcal/mol
Protein clashes
0
Internal clashes
16
Native overlap
contact recall 0.76, Jaccard 0.67, H-bond role recall 0.00
Burial
86%
Hydrophobic fit
99%
Reason: 16 internal clashes
16 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.683 kcal/mol/HA) ✓ Good fit quality (FQ -6.94) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (99%) ✗ Very high strain energy (37.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (16)
Score
-24.594
kcal/mol
LE
-0.683
kcal/mol/HA
Fit Quality
-6.94
FQ (Leeson)
HAC
36
heavy atoms
MW
489
Da
LogP
2.06
cLogP
Strain ΔE
37.5 kcal/mol
SASA buried
86%
Lipo contact
99% BSA apolar/total
SASA unbound
798 Ų
Apolar buried
680 Ų

Interaction summary

HB 1 HY 24 PI 2 CLASH 0
Final rank1.166Score-24.594
Inter norm-0.769Intra norm0.086
Top1000noExcludedno
Contacts19H-bonds1
Artifact reasongeometry warning; 16 clashes; 1 protein contact clash; high strain Δ 37.5
Residues
ALA10 ARG29 ASN65 GLN36 GLU31 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 PRO62 SER60 TYR122 VAL116 VAL9

Protein summary

200 residues
Protein targetT01Atoms3128
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 overlap16Native recall0.76
Jaccard0.67RMSD-
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

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
233 1.1661178838798525 -0.769084 -24.5943 1 19 16 0.76 0.00 - 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 -24.594kcal/mol
Ligand efficiency (LE) -0.6832kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.944
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 488.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.06
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 37.47kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 225.59kcal/mol
Minimised FF energy 188.12kcal/mol

SASA & burial

✓ computed
SASA (unbound) 798.1Ų
Total solvent-accessible surface area of free ligand
BSA total 687.3Ų
Buried surface area upon binding
BSA apolar 679.9Ų
Hydrophobic contacts buried
BSA polar 7.4Ų
Polar contacts buried
Fraction buried 86.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 98.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1873.8Ų
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 594.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)