FAIRMol

Z49575719

Pose ID 10138 Compound 3017 Pose 652

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 Z49575719
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
50.8 kcal/mol
Protein clashes
0
Internal clashes
7
Native overlap
contact recall 0.69, Jaccard 0.45
Burial
81%
Hydrophobic fit
81%
Reason: 7 internal clashes, strain 50.8 kcal/mol
strain ΔE 50.8 kcal/mol 7 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.083 kcal/mol/HA) ✓ Good fit quality (FQ -10.11) ✓ Good H-bonds (3 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Extreme strain energy (50.8 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-29.247
kcal/mol
LE
-1.083
kcal/mol/HA
Fit Quality
-10.11
FQ (Leeson)
HAC
27
heavy atoms
MW
398
Da
LogP
4.60
cLogP
Strain ΔE
50.8 kcal/mol
SASA buried
81%
Lipo contact
81% BSA apolar/total
SASA unbound
682 Ų
Apolar buried
445 Ų

Interaction summary

HB 3 HY 24 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 rank0.264Score-29.247
Inter norm-0.899Intra norm-0.184
Top1000noExcludedno
Contacts16H-bonds3
Artifact reasongeometry warning; 7 clashes; 1 protein contact clash; high strain Δ 50.8
Residues
ALA209 ALA67 ALA90 ARG74 GLY66 LEU73 LYS211 LYS89 MET70 PHE83 PRO187 PRO212 PRO213 TYR210 TYR69 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
652 0.26353728393015735 -0.899309 -29.2471 3 16 9 0.69 - - no Current
669 0.6988780016288693 -1.12213 -32.1696 9 20 0 0.00 - - no Open
646 0.7096742050371946 -1.21867 -31.7004 4 18 0 0.00 - - no Open
635 2.4587450875136847 -0.850814 -24.0576 2 12 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 -29.247kcal/mol
Ligand efficiency (LE) -1.0832kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.106
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 397.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.60
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 50.79kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 67.90kcal/mol
Minimised FF energy 17.11kcal/mol

SASA & burial

✓ computed
SASA (unbound) 682.2Ų
Total solvent-accessible surface area of free ligand
BSA total 551.4Ų
Buried surface area upon binding
BSA apolar 444.6Ų
Hydrophobic contacts buried
BSA polar 106.8Ų
Polar contacts buried
Fraction buried 80.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3029.2Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1501.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)