FAIRMol

Z46078212

Pose ID 9987 Compound 1077 Pose 501

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 Z46078212
PDB9IFF

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
19.2 kcal/mol
Protein clashes
0
Internal clashes
13
Native overlap
contact recall 0.77, Jaccard 0.53
Burial
80%
Hydrophobic fit
78%
Reason: 13 internal clashes
13 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.929 kcal/mol/HA) ✓ Good fit quality (FQ -8.87) ✓ Good H-bonds (4 bonds) ✓ Deep burial (80% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Moderate strain (19.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (13)
Score
-26.933
kcal/mol
LE
-0.929
kcal/mol/HA
Fit Quality
-8.87
FQ (Leeson)
HAC
29
heavy atoms
MW
417
Da
LogP
6.21
cLogP
Strain ΔE
19.2 kcal/mol
SASA buried
80%
Lipo contact
78% BSA apolar/total
SASA unbound
664 Ų
Apolar buried
414 Ų

Interaction summary

HB 4 HY 24 PI 1 CLASH 0
Final rank1.905Score-26.933
Inter norm-0.874Intra norm-0.054
Top1000noExcludedno
Contacts16H-bonds4
Artifact reasongeometry warning; 13 clashes; 1 protein clash
Residues
ALA209 ALA67 ALA90 ARG74 GLY66 GLY85 LEU73 LYS211 LYS89 MET70 PHE83 PRO212 PRO213 TYR210 TYR69 VAL88

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

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 overlap10Native recall0.77
Jaccard0.53RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

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.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
432 0.8623178535349165 -1.00322 -24.6609 2 16 0 0.00 - - no Open
403 1.0636572058242943 -0.810058 -23.5364 6 12 0 0.00 - - no Open
351 1.341002587485065 -1.2482 -38.7245 2 22 0 0.00 - - no Open
401 1.4146208906347317 -1.12411 -35.086 4 19 0 0.00 - - no Open
501 1.9050517117857513 -0.874468 -26.9335 4 16 10 0.77 - - no Current
479 2.7019193094242033 -0.790757 -20.0516 3 14 0 0.00 - - no Open
448 2.865866465048615 -0.810026 -23.0742 6 17 0 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 -26.933kcal/mol
Ligand efficiency (LE) -0.9287kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.866
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 416.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 6.21
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 19.21kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 97.14kcal/mol
Minimised FF energy 77.93kcal/mol

SASA & burial

✓ computed
SASA (unbound) 664.3Ų
Total solvent-accessible surface area of free ligand
BSA total 530.5Ų
Buried surface area upon binding
BSA apolar 413.6Ų
Hydrophobic contacts buried
BSA polar 117.0Ų
Polar contacts buried
Fraction buried 79.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3013.6Ų
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 1532.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)