FAIRMol

Z223039568

Pose ID 3880 Compound 2067 Pose 494

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 Z223039568
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
35.4 kcal/mol
Protein clashes
0
Internal clashes
7
Native overlap
contact recall 0.57, Jaccard 0.52, H-bond role recall 0.00
Burial
94%
Hydrophobic fit
78%
Reason: 7 internal clashes
7 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.035 kcal/mol/HA) ✓ Good fit quality (FQ -9.13) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Very high strain energy (35.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-23.800
kcal/mol
LE
-1.035
kcal/mol/HA
Fit Quality
-9.13
FQ (Leeson)
HAC
23
heavy atoms
MW
348
Da
LogP
3.96
cLogP
Strain ΔE
35.4 kcal/mol
SASA buried
94%
Lipo contact
78% BSA apolar/total
SASA unbound
566 Ų
Apolar buried
415 Ų

Interaction summary

HB 1 HY 24 PI 3 CLASH 0
Final rank-0.218Score-23.800
Inter norm-1.065Intra norm0.030
Top1000noExcludedno
Contacts14H-bonds1
Artifact reasongeometry warning; 7 clashes; high strain Δ 35.4
Residues
ALA34 ARG59 ASP54 GLN56 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE58 PHE94 VAL32 VAL33

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

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 overlap12Native recall0.57
Jaccard0.52RMSD-
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
494 -0.218325259221664 -1.06455 -23.8 1 14 12 0.57 0.00 - no Current
481 1.6314000145040002 -1.21466 -27.9441 3 12 0 0.00 0.00 - no Open
497 1.7255709242294228 -1.11872 -22.9764 4 18 1 0.05 0.00 - no Open
504 2.88249039759974 -1.20644 -27.3958 13 15 0 0.00 0.00 - no Open
535 3.386968071246316 -0.926468 -17.1576 4 13 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 -23.800kcal/mol
Ligand efficiency (LE) -1.0348kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.133
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 347.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.96
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.43kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 55.53kcal/mol
Minimised FF energy 20.10kcal/mol

SASA & burial

✓ computed
SASA (unbound) 566.3Ų
Total solvent-accessible surface area of free ligand
BSA total 531.9Ų
Buried surface area upon binding
BSA apolar 415.5Ų
Hydrophobic contacts buried
BSA polar 116.4Ų
Polar contacts buried
Fraction buried 93.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1682.4Ų
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 575.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)