FAIRMol

OSA_Lib_15

Pose ID 861 Compound 768 Pose 183

DB fairmolDocking 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 OSA_Lib_15
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
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
21.7 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.71, Jaccard 0.60, H-bond role recall 0.00
Burial
94%
Hydrophobic fit
100%
Reason: no major geometry red flags detected
2 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.714 kcal/mol/HA) ✓ Good fit quality (FQ -7.09) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (100%) ✗ High strain energy (21.7 kcal/mol) ✗ No H-bonds detected ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (16)
Score
-23.567
kcal/mol
LE
-0.714
kcal/mol/HA
Fit Quality
-7.09
FQ (Leeson)
HAC
33
heavy atoms
MW
439
Da
LogP
3.62
cLogP
Strain ΔE
21.7 kcal/mol
SASA buried
94%
Lipo contact
100% BSA apolar/total
SASA unbound
704 Ų
Apolar buried
664 Ų

Interaction summary

HB 0 HY 24 PI 2 CLASH 3

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

Final rank1.263Score-23.567
Inter norm-0.816Intra norm0.102
Top1000noExcludedno
Contacts19H-bonds0
Artifact reasongeometry warning; 16 clashes; 2 protein contact clashes; 1 cofactor-context clash; moderate strain Δ 21.7
Residues
ALA10 ASP22 GLU31 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 SER60 THR137 THR57 TRP25 TYR34 VAL116 VAL9

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 overlap15Native recall0.71
Jaccard0.60RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
183 1.2630059402710907 -0.815972 -23.5671 0 19 15 0.71 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 -23.567kcal/mol
Ligand efficiency (LE) -0.7142kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.086
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 438.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.62
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.74kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 161.60kcal/mol
Minimised FF energy 139.86kcal/mol

SASA & burial

✓ computed
SASA (unbound) 703.8Ų
Total solvent-accessible surface area of free ligand
BSA total 664.0Ų
Buried surface area upon binding
BSA apolar 664.0Ų
Hydrophobic contacts buried
BSA polar 0.0Ų
Polar contacts buried
Fraction buried 94.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 100.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1776.5Ų
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 605.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)