FAIRMol

Z57009636

Pose ID 13512 Compound 1669 Pose 633

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T20
T. brucei TR (Z-site (fragment hotspot)) T. brucei Z-site (fragment hotspot)
Ligand Z57009636
PDB9IFH

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
18.9 kcal/mol
Protein clashes
0
Internal clashes
8
Native overlap
contact recall 0.62, Jaccard 0.42, H-bond role recall 0.00
Burial
60%
Hydrophobic fit
83%
Reason: 8 internal clashes
8 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-0.703 kcal/mol/HA) ✓ Good fit quality (FQ -6.20) ✓ Good H-bonds (5 bonds) ✓ Good burial (60% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Moderate strain (18.9 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (8)
Score
-16.168
kcal/mol
LE
-0.703
kcal/mol/HA
Fit Quality
-6.20
FQ (Leeson)
HAC
23
heavy atoms
MW
315
Da
LogP
1.60
cLogP
Strain ΔE
18.9 kcal/mol
SASA buried
60%
Lipo contact
83% BSA apolar/total
SASA unbound
571 Ų
Apolar buried
284 Ų

Interaction summary

HB 5 HY 17 PI 1 CLASH 0

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.
Final rank1.799Score-16.168
Inter norm-0.813Intra norm0.110
Top1000noExcludedno
Contacts9H-bonds5
Artifact reasongeometry warning; 8 clashes; 1 protein clash
Residues
GLU467 LEU399 PHE396 PRO398 PRO462 SER394 SER395 SER464 THR463

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name9IFHContacts8
PoseOpen native poseHB0
IFP residues
ASN402 GLU467 LEU399 PHE396 PRO398 SER394 SER470 THR397
Current overlap5Native recall0.62
Jaccard0.42RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

492 residues
Protein targetT20Atoms7539
Residues492Chains1
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:221

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:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
623 0.4692329734738732 -1.23183 -24.7094 2 11 0 0.00 0.00 - no Open
633 1.7986745457374567 -0.813408 -16.1677 5 9 5 0.62 0.00 - no Current
635 1.9539917069857409 -1.35678 -26.6696 8 18 0 0.00 0.00 - no Open
634 1.9666833745950003 -0.914625 -16.2684 6 13 0 0.00 0.00 - no Open
639 2.3969626937932036 -1.08884 -21.8115 10 15 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 -16.168kcal/mol
Ligand efficiency (LE) -0.7029kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.204
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 315.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.60
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.89kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 84.01kcal/mol
Minimised FF energy 65.12kcal/mol

SASA & burial

✓ computed
SASA (unbound) 571.3Ų
Total solvent-accessible surface area of free ligand
BSA total 342.0Ų
Buried surface area upon binding
BSA apolar 283.7Ų
Hydrophobic contacts buried
BSA polar 58.3Ų
Polar contacts buried
Fraction buried 59.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3047.2Ų
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 4069.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1481.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)