FAIRMol

OSA_Lib_218

Pose ID 1558 Compound 1352 Pose 203

DB fairmolDocking pose analysis is being read from this database.
Compound detail Protein structures Back to compounds
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T03
L. major DHFR L. major
Ligand OSA_Lib_218

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
32.8 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.75, Jaccard 0.62, H-bond role recall 0.40
Burial
92%
Hydrophobic fit
96%
Reason: no major geometry red flags detected
2 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Good LE (-0.354 kcal/mol/HA) ✓ Good fit quality (FQ -3.65) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (96%) ✗ Very high strain energy (32.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (18)
Score
-13.472
kcal/mol
LE
-0.354
kcal/mol/HA
Fit Quality
-3.65
FQ (Leeson)
HAC
38
heavy atoms
MW
518
Da
LogP
2.31
cLogP
Strain ΔE
32.8 kcal/mol
SASA buried
92%
Lipo contact
96% BSA apolar/total
SASA unbound
876 Ų
Apolar buried
772 Ų

Interaction summary

HB 2 HY 24 PI 1 CLASH 2

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
Final rank2.911Score-13.472
Inter norm-0.696Intra norm0.342
Top1000noExcludedno
Contacts19H-bonds2
Artifact reasongeometry warning; 18 clashes; 1 protein clash; high strain Δ 32.8
Residues
ALA32 ARG48 ARG97 ASP52 ILE45 LEU94 LYS57 LYS95 MET53 NDP301 PHE56 PHE91 SER44 THR180 THR83 TRP47 VAL30 VAL31 VAL87

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name3CL9Contacts20
PoseOpen native poseHB0
IFP residues
ALA32 ARG97 ASP52 ILE45 LEU94 LYS57 MET53 NDP301 PHE56 PHE91 PRO88 SER86 THR180 THR54 THR83 TYR162 VAL156 VAL30 VAL31 VAL87
Current overlap15Native recall0.75
Jaccard0.62RMSD-
HB strict2Strict recall0.29
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

Protein summary

225 residues
Protein targetT03Atoms3428
Residues225Chains2
Residue summaryLEU:380; ARG:360; VAL:272; LYS:264; ALA:240; GLU:240; PRO:224; PHE:180; THR:154; ILE:152; SER:132; TYR:126; GLN:119; ASN:98; GLY:84; NDP:74

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:NDP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
203 2.9106508568109195 -0.696341 -13.4716 2 19 15 0.75 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 -13.472kcal/mol
Ligand efficiency (LE) -0.3545kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -3.655
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 38HA

Physicochemical properties
Molecular weight 517.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.31
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)
Strain energy (ΔE) 32.82kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 185.99kcal/mol
Minimised FF energy 153.17kcal/mol

SASA & burial

✓ computed
SASA (unbound) 875.6Ų
Total solvent-accessible surface area of free ligand
BSA total 806.0Ų
Buried surface area upon binding
BSA apolar 771.6Ų
Hydrophobic contacts buried
BSA polar 34.4Ų
Polar contacts buried
Fraction buried 92.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 95.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1849.8Ų
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 1820.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 811.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)