FAIRMol

Z1889837352

Pose ID 10038 Compound 27 Pose 552

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T15
T. brucei TR (Dimer cleft site) T. brucei Dimer cleft site
Ligand Z1889837352
PDB9IFF

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
55.2 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.69, Jaccard 0.45
Burial
64%
Hydrophobic fit
97%
Reason: strain 55.2 kcal/mol
strain ΔE 55.2 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.691 kcal/mol/HA) ✓ Good fit quality (FQ -7.02) ✓ Strong H-bond network (6 bonds) ✓ Good burial (64% SASA buried) ✓ Lipophilic contacts well-matched (97%) ✗ Extreme strain energy (55.2 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-24.873
kcal/mol
LE
-0.691
kcal/mol/HA
Fit Quality
-7.02
FQ (Leeson)
HAC
36
heavy atoms
MW
505
Da
LogP
-1.64
cLogP
Strain ΔE
55.2 kcal/mol
SASA buried
64%
Lipo contact
97% BSA apolar/total
SASA unbound
783 Ų
Apolar buried
484 Ų

Interaction summary

HB 6 HY 14 PI 0 CLASH 3

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

No pi · π–π interactions detected for this pose.

HY · Hydrophobic contacts

CLASH · Clashes

Final rank2.381Score-24.873
Inter norm-0.702Intra norm0.011
Top1000noExcludedno
Contacts16H-bonds6
Artifact reasongeometry warning; 5 clashes; 1 protein clash; high strain Δ 55.2
Residues
ALA90 ARG74 ASN208 ASN245 GLY214 GLY246 GLY85 ILE247 LYS211 LYS89 MET70 PRO212 PRO213 SER86 SER87 VAL88

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name9IFFContacts13
PoseOpen native poseHB0
IFP residues
ALA209 ARG74 ASN208 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 VAL88
Current overlap9Native recall0.69
Jaccard0.45RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

489 residues
Protein targetT15Atoms7420
Residues489Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:319; TYR:294; ASP:264; MET:204

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
462 -0.2924236749244264 -0.897491 -30.3221 7 17 0 0.00 - - no Open
529 0.2266800236437038 -0.763306 -24.8595 2 18 0 0.00 - - no Open
535 0.510708423527471 -0.726438 -24.7716 3 17 0 0.00 - - no Open
506 0.6125424365817946 -0.750888 -22.9192 4 18 0 0.00 - - no Open
496 1.6838300499446746 -0.537129 -17.9266 4 11 0 0.00 - - no Open
524 1.9630116217514917 -0.66271 -20.2398 6 19 0 0.00 - - no Open
521 2.0654308346565085 -0.584516 -20.0515 3 14 0 0.00 - - no Open
552 2.3810170928493584 -0.702076 -24.8734 6 16 9 0.69 - - 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 -24.873kcal/mol
Ligand efficiency (LE) -0.6909kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.022
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 504.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) -1.64
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 55.20kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 186.31kcal/mol
Minimised FF energy 131.11kcal/mol

SASA & burial

✓ computed
SASA (unbound) 783.1Ų
Total solvent-accessible surface area of free ligand
BSA total 500.5Ų
Buried surface area upon binding
BSA apolar 483.9Ų
Hydrophobic contacts buried
BSA polar 16.6Ų
Polar contacts buried
Fraction buried 63.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 96.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3250.9Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1517.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)