FAIRMol

Z1431036083

Pose ID 4004 Compound 324 Pose 618

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 Z1431036083
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
24.1 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.81, Jaccard 0.77, H-bond role recall 1.00
Burial
98%
Hydrophobic fit
92%
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.
✓ Excellent LE (-1.120 kcal/mol/HA) ✓ Good fit quality (FQ -9.38) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ High strain energy (24.1 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Many internal clashes (11)
Score
-22.405
kcal/mol
LE
-1.120
kcal/mol/HA
Fit Quality
-9.38
FQ (Leeson)
HAC
20
heavy atoms
MW
286
Da
LogP
2.90
cLogP
Strain ΔE
24.1 kcal/mol
SASA buried
98%
Lipo contact
92% BSA apolar/total
SASA unbound
499 Ų
Apolar buried
454 Ų

Interaction summary

HB 9 HY 24 PI 2 CLASH 5
Final rank1.113Score-22.405
Inter norm-1.403Intra norm0.282
Top1000noExcludedno
Contacts18H-bonds9
Artifact reasongeometry warning; 11 clashes; 8 protein contact clashes; 1 cofactor-context clash; moderate strain Δ 24.1
Residues
ALA34 ARG183 ASP54 HIS182 ILE160 ILE47 LEU90 MET55 NDP301 PHE233 PHE58 SER89 THR184 THR86 TYR166 TYR57 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 overlap17Native recall0.81
Jaccard0.77RMSD-
HB strict4Strict recall0.80
HB same residue+role4HB role recall1.00
HB same residue4HB residue recall1.00

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
615 0.28960847850830457 -1.79774 -32.3379 7 16 0 0.00 0.00 - no Open
628 0.5533442578553829 -1.59574 -27.2117 7 15 0 0.00 0.00 - no Open
618 1.1131810469424614 -1.40275 -22.4055 9 18 17 0.81 1.00 - no Current
615 1.8392976324836339 -1.43602 -28.4815 4 17 1 0.05 0.00 - no Open
622 1.94899555551666 -1.2868 -20.6349 8 17 0 0.00 0.00 - no Open
622 1.9817671477287926 -1.28066 -20.826 9 18 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 -22.405kcal/mol
Ligand efficiency (LE) -1.1203kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.375
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 20HA

Physicochemical properties

Molecular weight 285.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.90
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 24.08kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -48.56kcal/mol
Minimised FF energy -72.64kcal/mol

SASA & burial

✓ computed
SASA (unbound) 499.0Ų
Total solvent-accessible surface area of free ligand
BSA total 490.4Ų
Buried surface area upon binding
BSA apolar 453.6Ų
Hydrophobic contacts buried
BSA polar 36.8Ų
Polar contacts buried
Fraction buried 98.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 92.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1666.9Ų
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 604.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)