FAIRMol

Z1431039903

Pose ID 4019 Compound 2445 Pose 633

DB fairmolDocking 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 Z1431039903
PDB8RHT

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
22.8 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.76, Jaccard 0.73, H-bond role recall 0.75
Burial
98%
Hydrophobic fit
90%
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 (-1.013 kcal/mol/HA) ✓ Good fit quality (FQ -8.30) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ High strain energy (22.8 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (11)
Score
-19.241
kcal/mol
LE
-1.013
kcal/mol/HA
Fit Quality
-8.30
FQ (Leeson)
HAC
19
heavy atoms
MW
250
Da
LogP
2.82
cLogP
Strain ΔE
22.8 kcal/mol
SASA buried
98%
Lipo contact
90% BSA apolar/total
SASA unbound
474 Ų
Apolar buried
419 Ų

Interaction summary

HB 8 HY 24 PI 2 CLASH 3

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

Final rank0.783Score-19.241
Inter norm-1.305Intra norm0.292
Top1000noExcludedno
Contacts17H-bonds8
Artifact reasongeometry warning; 11 clashes; 5 protein contact clashes; 1 cofactor-context clash; moderate strain Δ 22.8
Residues
ALA34 ARG183 ASP54 HIS182 ILE160 ILE47 LEU90 MET55 NDP301 PHE233 PHE58 THR184 THR86 TYR166 TYR57 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 overlap16Native recall0.76
Jaccard0.73RMSD-
HB strict3Strict recall0.60
HB same residue+role3HB role recall0.75
HB same residue3HB residue recall0.75

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
633 0.7834899590021609 -1.30463 -19.2405 8 17 16 0.76 0.75 - 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 -19.241kcal/mol
Ligand efficiency (LE) -1.0127kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.300
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 250.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.82
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 22.81kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -78.52kcal/mol
Minimised FF energy -101.32kcal/mol

SASA & burial

✓ computed
SASA (unbound) 473.6Ų
Total solvent-accessible surface area of free ligand
BSA total 465.4Ų
Buried surface area upon binding
BSA apolar 419.0Ų
Hydrophobic contacts buried
BSA polar 46.4Ų
Polar contacts buried
Fraction buried 98.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1632.4Ų
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 603.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)