FAIRMol

Z31183768

Pose ID 491 Compound 45 Pose 491

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 Z31183768
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
38.3 kcal/mol
Protein clashes
2
Internal clashes
10
Native overlap
contact recall 0.76, Jaccard 0.67, H-bond role recall 0.00
Burial
92%
Hydrophobic fit
74%
Reason: 10 internal clashes
2 protein-contact clashes 10 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.897 kcal/mol/HA) ✓ Good fit quality (FQ -8.65) ✓ Deep burial (92% SASA buried) ✓ Lipophilic contacts well-matched (74%) ✗ Very high strain energy (38.3 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (10)
Score
-26.916
kcal/mol
LE
-0.897
kcal/mol/HA
Fit Quality
-8.65
FQ (Leeson)
HAC
30
heavy atoms
MW
461
Da
LogP
4.40
cLogP
Strain ΔE
38.3 kcal/mol
SASA buried
92%
Lipo contact
74% BSA apolar/total
SASA unbound
691 Ų
Apolar buried
472 Ų

Interaction summary

HB 1 HY 24 PI 2 CLASH 0
Final rank0.657Score-26.916
Inter norm-0.856Intra norm-0.041
Top1000noExcludedno
Contacts19H-bonds1
Artifact reasongeometry warning; 10 clashes; 2 protein contact clashes; high strain Δ 38.3
Residues
ALA10 ASP22 GLU31 GLY21 ILE61 ILE8 LEU23 LEU28 LEU68 NAP201 PHE32 PHE35 PRO27 PRO62 SER60 TRP25 TYR122 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 overlap16Native recall0.76
Jaccard0.67RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
491 0.6568242934034779 -0.855812 -26.9155 1 19 16 0.76 0.00 - no Current
461 1.4757152030497325 -0.727168 -18.8759 4 13 0 0.00 0.00 - no Open
419 2.301587904267888 -0.810249 -24.2859 5 12 0 0.00 0.00 - no Open
482 2.4509505637358693 -0.954137 -28.3986 5 15 11 0.52 0.00 - no Open
397 2.6910133316567784 -1.10832 -33.2889 9 20 0 0.00 0.00 - no Open
433 3.1237119935793745 -1.03561 -30.7711 8 19 0 0.00 0.00 - no Open
403 3.806388656164234 -0.820277 -23.8419 13 15 0 0.00 0.00 - no Open
434 3.821146497143834 -0.80197 -21.889 8 11 0 0.00 0.00 - no Open
396 3.989000081121798 -0.947387 -21.9904 7 10 0 0.00 0.00 - no Open
519 4.4009244236670835 -0.83158 -24.0403 6 14 0 0.00 0.00 - 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 -26.916kcal/mol
Ligand efficiency (LE) -0.8972kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.655
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 461.0Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.40
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 38.26kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 68.04kcal/mol
Minimised FF energy 29.77kcal/mol

SASA & burial

✓ computed
SASA (unbound) 690.9Ų
Total solvent-accessible surface area of free ligand
BSA total 636.1Ų
Buried surface area upon binding
BSA apolar 472.5Ų
Hydrophobic contacts buried
BSA polar 163.7Ų
Polar contacts buried
Fraction buried 92.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1601.2Ų
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 601.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)