FAIRMol

Z18798818

Pose ID 3770 Compound 2535 Pose 384

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 Z18798818
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 weak Geometry medium Native strong SASA done
Strain ΔE
34.3 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.76, Jaccard 0.70, H-bond role recall 0.00
Burial
96%
Hydrophobic fit
82%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ Very high strain energy (34.3 kcal/mol) ✗ Low LE (-0.144 kcal/mol/HA) ✗ No H-bonds detected ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (12)
Score
-4.315
kcal/mol
LE
-0.144
kcal/mol/HA
Fit Quality
-1.39
FQ (Leeson)
HAC
30
heavy atoms
MW
421
Da
LogP
4.62
cLogP
Strain ΔE
34.3 kcal/mol
SASA buried
96%
Lipo contact
82% BSA apolar/total
SASA unbound
695 Ų
Apolar buried
551 Ų

Interaction summary

HB 0 HY 24 PI 3 CLASH 5

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

Final rank1.424Score-4.315
Inter norm-0.751Intra norm0.607
Top1000noExcludedno
Contacts18H-bonds0
Artifact reasongeometry warning; 12 clashes; 5 protein contact clashes; high strain Δ 34.3
Residues
ALA34 ARG59 ASP54 GLN56 ILE160 ILE47 LEU90 LEU97 MET55 NDP301 PHE58 PHE94 PRO91 THR184 THR86 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
Jaccard0.70RMSD-
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
384 1.4243294239465847 -0.75061 -4.31475 0 18 16 0.76 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 -4.315kcal/mol
Ligand efficiency (LE) -0.1438kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -1.387
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 420.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.62
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 34.32kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 53.70kcal/mol
Minimised FF energy 19.39kcal/mol

SASA & burial

✓ computed
SASA (unbound) 694.8Ų
Total solvent-accessible surface area of free ligand
BSA total 668.2Ų
Buried surface area upon binding
BSA apolar 551.0Ų
Hydrophobic contacts buried
BSA polar 117.2Ų
Polar contacts buried
Fraction buried 96.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 82.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1802.3Ų
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 584.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)