FAIRMol

OSA_Lib_263

Pose ID 908 Compound 774 Pose 230

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_263
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
51.2 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.81, Jaccard 0.71, H-bond role recall 0.20
Burial
90%
Hydrophobic fit
95%
Reason: strain 51.2 kcal/mol
strain ΔE 51.2 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.730 kcal/mol/HA) ✓ Good fit quality (FQ -7.57) ✓ Deep burial (90% SASA buried) ✓ Lipophilic contacts well-matched (95%) ✗ Extreme strain energy (51.2 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (15)
Score
-28.462
kcal/mol
LE
-0.730
kcal/mol/HA
Fit Quality
-7.57
FQ (Leeson)
HAC
39
heavy atoms
MW
522
Da
LogP
2.86
cLogP
Final rank
1.3079
rank score
Inter norm
-0.745
normalised
Contacts
20
H-bonds 1
Strain ΔE
51.2 kcal/mol
SASA buried
90%
Lipo contact
95% BSA apolar/total
SASA unbound
777 Ų
Apolar buried
665 Ų

Interaction summary

HBA 1 HY 8 PI 4 CLASH 1

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

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 overlap17Native recall0.81
Jaccard0.71RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
230 1.3078938872009456 -0.744747 -28.4625 1 20 17 0.81 0.20 - 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 -28.462kcal/mol
Ligand efficiency (LE) -0.7298kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.574
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 39HA

Physicochemical properties

Molecular weight 521.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.86
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 51.21kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 225.10kcal/mol
Minimised FF energy 173.88kcal/mol

SASA & burial

✓ computed
SASA (unbound) 776.8Ų
Total solvent-accessible surface area of free ligand
BSA total 698.8Ų
Buried surface area upon binding
BSA apolar 665.1Ų
Hydrophobic contacts buried
BSA polar 33.8Ų
Polar contacts buried
Fraction buried 90.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 95.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1824.8Ų
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 596.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)