FAIRMol

OSA_Lib_235

Pose ID 237 Compound 158 Pose 237

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_235
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
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
21.7 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.81, Jaccard 0.71, H-bond role recall 0.20
Burial
93%
Hydrophobic fit
100%
Reason: no major geometry red flags detected
3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.700 kcal/mol/HA) ✓ Good fit quality (FQ -6.94) ✓ Good H-bonds (3 bonds) ✓ Deep burial (93% SASA buried) ✓ Lipophilic contacts well-matched (100%) ✗ High strain energy (21.7 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (11)
Score
-23.089
kcal/mol
LE
-0.700
kcal/mol/HA
Fit Quality
-6.94
FQ (Leeson)
HAC
33
heavy atoms
MW
447
Da
LogP
1.40
cLogP
Strain ΔE
21.7 kcal/mol
SASA buried
93%
Lipo contact
100% BSA apolar/total
SASA unbound
743 Ų
Apolar buried
688 Ų

Interaction summary

HB 3 HY 24 PI 2 CLASH 3
Final rank1.280Score-23.089
Inter norm-0.827Intra norm0.127
Top1000noExcludedno
Contacts20H-bonds3
Artifact reasongeometry warning; 11 clashes; 5 protein contact clashes; 1 severe cofactor-context clash; moderate strain Δ 21.7
Residues
ALA10 ASP22 GLU31 GLY21 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 PRO62 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 overlap17Native recall0.81
Jaccard0.71RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

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
237 1.2804447006144368 -0.826832 -23.0888 3 20 17 0.81 0.20 - no Current
222 1.6391197085871712 -0.84579 -22.4912 3 20 17 0.81 0.20 - 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 -23.089kcal/mol
Ligand efficiency (LE) -0.6997kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.942
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 446.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.40
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.65kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 289.60kcal/mol
Minimised FF energy 267.94kcal/mol

SASA & burial

✓ computed
SASA (unbound) 743.1Ų
Total solvent-accessible surface area of free ligand
BSA total 688.1Ų
Buried surface area upon binding
BSA apolar 688.1Ų
Hydrophobic contacts buried
BSA polar 0.0Ų
Polar contacts buried
Fraction buried 92.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 100.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1825.0Ų
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 595.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)