FAIRMol

OSA_Lib_326

Pose ID 261 Compound 68 Pose 261

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_326
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 high Native strong SASA done
Strain ΔE
16.5 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.86, Jaccard 0.82, H-bond role recall 0.40
Burial
96%
Hydrophobic fit
98%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.915 kcal/mol/HA) ✓ Good fit quality (FQ -8.54) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (98%) ✗ Moderate strain (16.5 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (11)
Score
-24.719
kcal/mol
LE
-0.915
kcal/mol/HA
Fit Quality
-8.54
FQ (Leeson)
HAC
27
heavy atoms
MW
364
Da
LogP
1.54
cLogP
Strain ΔE
16.5 kcal/mol
SASA buried
96%
Lipo contact
98% BSA apolar/total
SASA unbound
631 Ų
Apolar buried
589 Ų

Interaction summary

HB 2 HY 24 PI 3 CLASH 1
Final rank0.772Score-24.719
Inter norm-0.957Intra norm0.042
Top1000noExcludedno
Contacts19H-bonds2
Artifact reasongeometry warning; 11 clashes; 3 protein contact clashes
Residues
ALA10 ASN65 ASP22 GLN36 GLU31 GLY21 ILE61 ILE8 LEU23 LEU68 NAP201 PHE32 PHE35 SER60 THR137 THR57 TYR34 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 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
261 0.7720849870597676 -0.957238 -24.7193 2 19 18 0.86 0.40 - 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 -24.719kcal/mol
Ligand efficiency (LE) -0.9155kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.542
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 363.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.54
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.46kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 188.07kcal/mol
Minimised FF energy 171.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 631.4Ų
Total solvent-accessible surface area of free ligand
BSA total 603.0Ų
Buried surface area upon binding
BSA apolar 588.6Ų
Hydrophobic contacts buried
BSA polar 14.3Ų
Polar contacts buried
Fraction buried 95.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 97.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1687.8Ų
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 607.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)