FAIRMol

Z56815073

Pose ID 10806 Compound 318 Pose 641

DB fairmolDocking 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 Z56815073
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 mixed SASA done
Strain ΔE
35.5 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.42, Jaccard 0.25
Burial
64%
Hydrophobic fit
75%
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 (-0.697 kcal/mol/HA) ✓ Good fit quality (FQ -6.85) ✓ Good H-bonds (4 bonds) ✓ Good burial (64% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Very high strain energy (35.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-22.297
kcal/mol
LE
-0.697
kcal/mol/HA
Fit Quality
-6.85
FQ (Leeson)
HAC
32
heavy atoms
MW
569
Da
LogP
6.24
cLogP
Strain ΔE
35.5 kcal/mol
SASA buried
64%
Lipo contact
75% BSA apolar/total
SASA unbound
756 Ų
Apolar buried
365 Ų

Interaction summary

HB 4 HY 17 PI 0 CLASH 1

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 rank2.292Score-22.297
Inter norm-0.726Intra norm0.029
Top1000noExcludedno
Contacts13H-bonds4
Artifact reasongeometry warning; 14 clashes; 1 protein clash; high strain Δ 35.4
Residues
ALA90 ASN91 GLY214 GLY215 LYS211 LYS89 LYS93 MET70 PRO187 PRO212 PRO213 TRP92 TYR210

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 overlap5Native recall0.42
Jaccard0.25RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
662 0.6661725537921506 -1.04002 -28.6522 3 19 0 0.00 - - no Open
659 0.7707737947628458 -0.753505 -21.1708 0 16 0 0.00 - - no Open
652 0.8225922751736459 -1.01993 -29.9798 1 17 0 0.00 - - no Open
642 1.139808952940768 -0.847734 -26.7285 5 14 0 0.00 - - no Open
656 1.7653889637304623 -0.867492 -24.6089 3 18 0 0.00 - - no Open
655 1.8473635475241321 -1.0072 -32.0974 3 18 0 0.00 - - no Open
638 1.9648568381193203 -0.927569 -29.9449 4 16 0 0.00 - - no Open
645 2.1923496622071084 -0.758001 -17.56 2 18 0 0.00 - - no Open
661 2.2567473265764555 -0.765666 -25.1725 7 20 0 0.00 - - no Open
641 2.292373942513122 -0.725642 -22.2969 4 13 5 0.42 - - no Current
641 2.2974884616866427 -0.933418 -28.8424 4 19 0 0.00 - - no Open
654 3.071439811116401 -0.870778 -29.2301 13 16 0 0.00 - - no Open
659 3.8692944863611776 -0.656079 -21.7278 6 10 0 0.00 - - no Open
660 3.931763085408765 -0.81696 -27.3427 3 19 0 0.00 - - no Open
666 5.297500006745246 -0.919049 -23.1364 13 21 1 0.08 - - 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 -22.297kcal/mol
Ligand efficiency (LE) -0.6968kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.852
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 568.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 6.24
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.48kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 54.15kcal/mol
Minimised FF energy 18.67kcal/mol

SASA & burial

✓ computed
SASA (unbound) 755.8Ų
Total solvent-accessible surface area of free ligand
BSA total 484.4Ų
Buried surface area upon binding
BSA apolar 365.3Ų
Hydrophobic contacts buried
BSA polar 119.2Ų
Polar contacts buried
Fraction buried 64.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 75.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3118.5Ų
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 1533.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)