FAIRMol

OHD_TbNat_143

Pose ID 10219 Compound 4256 Pose 54

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 OHD_TbNat_143
PDB6RB5

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
60.9 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 1.00, Jaccard 0.71
Burial
60%
Hydrophobic fit
90%
Reason: strain 60.9 kcal/mol
strain ΔE 60.9 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.533 kcal/mol/HA) ✓ Good fit quality (FQ -5.95) ✓ Good H-bonds (3 bonds) ✓ Good burial (60% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ Extreme strain energy (60.9 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Many internal clashes (31)
Score
-28.798
kcal/mol
LE
-0.533
kcal/mol/HA
Fit Quality
-5.95
FQ (Leeson)
HAC
54
heavy atoms
MW
727
Da
LogP
7.59
cLogP
Strain ΔE
60.9 kcal/mol
SASA buried
60%
Lipo contact
90% BSA apolar/total
SASA unbound
1072 Ų
Apolar buried
578 Ų

Interaction summary

HB 3 HY 23 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 rank3.578Score-28.798
Inter norm-0.452Intra norm-0.081
Top1000noExcludedno
Contacts17H-bonds3
Artifact reasongeometry warning; 31 clashes; 4 protein contact clashes; high strain Δ 60.9
Residues
ALA77 ALA90 ARG74 GLY214 GLY215 GLY85 LEU73 LYS211 LYS89 MET70 PHE83 PRO212 PRO213 SER86 SER87 TYR210 VAL88

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 overlap12Native recall1.00
Jaccard0.71RMSD-
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
55 3.3497979919415495 -0.464673 -26.1912 3 17 12 1.00 - - no Open
53 3.3758863606086744 -0.464402 -25.8528 4 17 12 1.00 - - no Open
54 3.577924600809405 -0.451894 -28.7976 3 17 12 1.00 - - no Current
87 4.13827499297359 -0.389581 -24.1811 5 12 0 0.00 - - no Open
56 4.18770120335156 -0.462654 -28.0377 3 17 12 1.00 - - no Open
52 4.322987441457952 -0.456955 -29.3071 3 16 12 1.00 - - no Open
74 4.64585637414439 -0.460571 -29.366 4 20 0 0.00 - - no Open
89 5.0128806381886335 -0.357608 -20.2348 8 11 0 0.00 - - no Open
72 5.3307022059735445 -0.507201 -27.1817 4 21 0 0.00 - - no Open
91 5.437408225175003 -0.441797 -29.9598 7 15 0 0.00 - - no Open
92 5.444837849737617 -0.444097 -28.2973 7 17 0 0.00 - - no Open
73 5.678919712128663 -0.491703 -25.9507 2 20 0 0.00 - - no Open
75 5.700971264321272 -0.478973 -28.9123 3 19 0 0.00 - - no Open
76 5.778532105396608 -0.481828 -25.7334 2 19 0 0.00 - - no Open
88 5.871724657289681 -0.39485 -22.2877 5 10 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 -28.798kcal/mol
Ligand efficiency (LE) -0.5333kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.952
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 54HA

Physicochemical properties

Molecular weight 726.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 7.59
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 60.92kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 243.68kcal/mol
Minimised FF energy 182.77kcal/mol

SASA & burial

✓ computed
SASA (unbound) 1072.3Ų
Total solvent-accessible surface area of free ligand
BSA total 640.4Ų
Buried surface area upon binding
BSA apolar 578.0Ų
Hydrophobic contacts buried
BSA polar 62.4Ų
Polar contacts buried
Fraction buried 59.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3600.2Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1478.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)