FAIRMol

Z25778757

Pose ID 10765 Compound 2755 Pose 600

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T16
T. brucei TR (Dimer interface (site 2)) T. brucei Dimer interface (site 2)
Ligand Z25778757
PDB6RB5

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry medium Native strong SASA done
Strain ΔE
37.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.67, Jaccard 0.44
Burial
66%
Hydrophobic fit
92%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.684 kcal/mol/HA) ✓ Good fit quality (FQ -6.90) ✓ Good H-bonds (4 bonds) ✓ Deep burial (66% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ Very high strain energy (37.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-23.941
kcal/mol
LE
-0.684
kcal/mol/HA
Fit Quality
-6.90
FQ (Leeson)
HAC
35
heavy atoms
MW
471
Da
LogP
4.43
cLogP
Strain ΔE
37.3 kcal/mol
SASA buried
66%
Lipo contact
92% BSA apolar/total
SASA unbound
833 Ų
Apolar buried
500 Ų

Interaction summary

HB 4 HY 24 PI 1 CLASH 1
Final rank3.546Score-23.941
Inter norm-0.722Intra norm0.038
Top1000noExcludedno
Contacts14H-bonds4
Artifact reasongeometry warning; 10 clashes; 2 protein clashes; high strain Δ 37.3
Residues
ALA209 ALA67 ALA90 GLY66 LEU73 LYS211 LYS89 MET70 PRO212 PRO213 SER86 TYR210 TYR69 VAL88

Protein summary

493 residues
Protein targetT16Atoms7551
Residues493Chains1
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:276; 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

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6RB5Contacts12
PoseOpen native poseHB0
IFP residues
ALA90 ARG74 GLY85 LEU73 LYS89 MET70 PHE83 PRO212 PRO213 SER86 SER87 VAL88
Current overlap8Native recall0.67
Jaccard0.44RMSD-
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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
581 0.5279466170560568 -0.92298 -21.7341 3 18 0 0.00 - - no Open
584 1.6032710136530173 -0.671895 -22.2796 5 16 0 0.00 - - no Open
580 2.233058305090961 -0.978889 -25.9835 3 16 0 0.00 - - no Open
619 2.798593001434877 -0.91104 -35.0462 4 16 0 0.00 - - no Open
600 3.5461906514861314 -0.721784 -23.941 4 14 8 0.67 - - no Current
598 3.9640623284702365 -0.540965 -15.9625 3 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 -23.941kcal/mol
Ligand efficiency (LE) -0.6840kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.899
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 35HA

Physicochemical properties

Molecular weight 470.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.43
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 37.34kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 125.27kcal/mol
Minimised FF energy 87.92kcal/mol

SASA & burial

✓ computed
SASA (unbound) 833.3Ų
Total solvent-accessible surface area of free ligand
BSA total 546.1Ų
Buried surface area upon binding
BSA apolar 500.1Ų
Hydrophobic contacts buried
BSA polar 46.1Ų
Polar contacts buried
Fraction buried 65.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 91.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3384.8Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1466.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)