FAIRMol

Z31223999

Pose ID 3875 Compound 2324 Pose 489

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T06
T. brucei DHFR T. brucei
Ligand Z31223999
PDB8RHT

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
12.8 kcal/mol
Protein clashes
0
Internal clashes
7
Native overlap
contact recall 0.71, Jaccard 0.65, H-bond role recall 0.00
Burial
97%
Hydrophobic fit
85%
Reason: 7 internal clashes
7 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.124 kcal/mol/HA) ✓ Good fit quality (FQ -9.76) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (85%) ✗ Moderate strain (12.8 kcal/mol) ✗ No H-bonds detected ✗ Geometry warnings ✗ Internal clashes (7)
Score
-24.723
kcal/mol
LE
-1.124
kcal/mol/HA
Fit Quality
-9.76
FQ (Leeson)
HAC
22
heavy atoms
MW
329
Da
LogP
5.03
cLogP
Strain ΔE
12.8 kcal/mol
SASA buried
97%
Lipo contact
85% BSA apolar/total
SASA unbound
580 Ų
Apolar buried
478 Ų

Interaction summary

HB 0 HY 24 PI 3 CLASH 0

HB · H-bonds

No hb · h-bonds detected for this pose.

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.
Final rank-0.269Score-24.723
Inter norm-1.104Intra norm-0.020
Top1000noExcludedno
Contacts17H-bonds0
Artifact reasongeometry warning; 7 clashes
Residues
ALA34 ARG100 ARG59 ASP54 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE58 PHE94 THR184 THR86 TYR166 VAL32 VAL33

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name8RHTContacts21
PoseOpen native poseHB0
IFP residues
ALA34 ASP54 HIS182 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE233 PHE58 PHE94 PRO91 SER89 THR184 THR86 TRP49 TYR166 TYR57 VAL32 VAL33
Current overlap15Native recall0.71
Jaccard0.65RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

223 residues
Protein targetT06Atoms3452
Residues223Chains1
Residue summaryARG:408; VAL:352; LYS:308; LEU:304; PRO:238; ILE:209; GLU:195; THR:182; SER:176; ALA:160; PHE:140; ASN:126; GLY:126; ASP:108; GLN:85; 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
489 -0.26886332126433093 -1.10397 -24.7229 0 17 15 0.71 0.00 - 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 -24.723kcal/mol
Ligand efficiency (LE) -1.1238kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.756
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 22HA

Physicochemical properties

Molecular weight 329.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.03
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 12.75kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 17.90kcal/mol
Minimised FF energy 5.15kcal/mol

SASA & burial

✓ computed
SASA (unbound) 580.1Ų
Total solvent-accessible surface area of free ligand
BSA total 561.6Ų
Buried surface area upon binding
BSA apolar 478.0Ų
Hydrophobic contacts buried
BSA polar 83.6Ų
Polar contacts buried
Fraction buried 96.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 85.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1729.2Ų
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 1808.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 575.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)