FAIRMol

Z31545384

Pose ID 1896 Compound 1315 Pose 541

DB SELECTIONDocking 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 Z31545384

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
56.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.80, Jaccard 0.70, H-bond role recall 0.20
Burial
85%
Hydrophobic fit
64%
Reason: strain 56.3 kcal/mol
strain ΔE 56.3 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.736 kcal/mol/HA) ✓ Good fit quality (FQ -7.30) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (85% SASA buried) ✓ Lipophilic contacts well-matched (64%) ✗ Extreme strain energy (56.3 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-24.285
kcal/mol
LE
-0.736
kcal/mol/HA
Fit Quality
-7.30
FQ (Leeson)
HAC
33
heavy atoms
MW
518
Da
LogP
1.82
cLogP
Strain ΔE
56.3 kcal/mol
SASA buried
85%
Lipo contact
64% BSA apolar/total
SASA unbound
776 Ų
Apolar buried
425 Ų

Interaction summary

HB 6 HY 24 PI 2 CLASH 1
Final rank2.617Score-24.285
Inter norm-0.878Intra norm0.142
Top1000noExcludedno
Contacts19H-bonds6
Artifact reasongeometry warning; 5 clashes; 2 protein clashes; high strain Δ 56.2
Residues
ALA32 ARG97 ASP52 ILE45 LEU94 LYS57 LYS90 LYS95 MET53 NDP301 PHE56 PHE91 PRO93 THR54 TYR162 VAL156 VAL30 VAL31 VAL87

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

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 overlap16Native recall0.80
Jaccard0.70RMSD-
HB strict2Strict recall0.29
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
541 2.617274720249237 -0.87813 -24.2845 6 19 16 0.80 0.20 - no Current
522 2.8162579184003977 -0.830865 -24.6714 4 15 1 0.05 0.00 - no Open
513 2.883076203678775 -0.974716 -36.3498 7 22 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 -24.285kcal/mol
Ligand efficiency (LE) -0.7359kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.301
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties
Molecular weight 517.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.82
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)
Strain energy (ΔE) 56.31kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 84.92kcal/mol
Minimised FF energy 28.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 776.1Ų
Total solvent-accessible surface area of free ligand
BSA total 661.5Ų
Buried surface area upon binding
BSA apolar 425.2Ų
Hydrophobic contacts buried
BSA polar 236.3Ų
Polar contacts buried
Fraction buried 85.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1543.1Ų
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 803.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)