FAIRMol

OSA_Lib_252

Pose ID 243 Compound 90 Pose 243

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_252
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
35.3 kcal/mol
Protein clashes
0
Internal clashes
15
Native overlap
contact recall 0.86, Jaccard 0.82, H-bond role recall 0.00
Burial
88%
Hydrophobic fit
100%
Reason: 15 internal clashes
15 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.678 kcal/mol/HA) ✓ Good fit quality (FQ -7.00) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (100%) ✗ Very high strain energy (35.3 kcal/mol) ✗ No H-bonds detected ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-25.785
kcal/mol
LE
-0.678
kcal/mol/HA
Fit Quality
-7.00
FQ (Leeson)
HAC
38
heavy atoms
MW
508
Da
LogP
3.34
cLogP
Strain ΔE
35.3 kcal/mol
SASA buried
88%
Lipo contact
100% BSA apolar/total
SASA unbound
781 Ų
Apolar buried
684 Ų

Interaction summary

HB 0 HY 24 PI 3 CLASH 0
Final rank0.909Score-25.785
Inter norm-0.727Intra norm0.048
Top1000noExcludedno
Contacts19H-bonds0
Artifact reasongeometry warning; 15 clashes; high strain Δ 35.3
Residues
ALA10 ASN65 ASP22 GLU31 GLY21 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO62 SER60 THR137 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 overlap18Native recall0.86
Jaccard0.82RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

HB · H-bonds

No hb · h-bonds 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

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
243 0.9089476071349256 -0.726983 -25.7846 0 19 18 0.86 0.00 - no Current
210 1.6914780863112016 -0.582162 -20.642 2 15 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 -25.785kcal/mol
Ligand efficiency (LE) -0.6785kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.995
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 38HA

Physicochemical properties

Molecular weight 507.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.34
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.29kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 206.64kcal/mol
Minimised FF energy 171.35kcal/mol

SASA & burial

✓ computed
SASA (unbound) 780.8Ų
Total solvent-accessible surface area of free ligand
BSA total 683.5Ų
Buried surface area upon binding
BSA apolar 683.5Ų
Hydrophobic contacts buried
BSA polar 0.0Ų
Polar contacts buried
Fraction buried 87.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 100.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1855.0Ų
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 1677.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 603.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)