FAIRMol

OHD_TbNat_144

Pose ID 10220 Compound 4256 Pose 55

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 OHD_TbNat_144
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
78.1 kcal/mol
Protein clashes
3
Internal clashes
30
Native overlap
contact recall 1.00, Jaccard 0.71
Burial
60%
Hydrophobic fit
92%
Reason: 30 internal clashes, strain 78.1 kcal/mol
strain ΔE 78.1 kcal/mol 3 protein-contact clashes 30 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.485 kcal/mol/HA) ✓ Good fit quality (FQ -5.41) ✓ Good H-bonds (3 bonds) ✓ Good burial (60% SASA buried) ✓ Lipophilic contacts well-matched (92%) ✗ Extreme strain energy (78.1 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (30)
Score
-26.191
kcal/mol
LE
-0.485
kcal/mol/HA
Fit Quality
-5.41
FQ (Leeson)
HAC
54
heavy atoms
MW
727
Da
LogP
7.59
cLogP
Strain ΔE
78.1 kcal/mol
SASA buried
60%
Lipo contact
92% BSA apolar/total
SASA unbound
1075 Ų
Apolar buried
597 Ų

Interaction summary

HB 3 HY 24 PI 0 CLASH 0

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

No clash · clashes detected for this pose.
Final rank3.350Score-26.191
Inter norm-0.465Intra norm-0.020
Top1000noExcludedno
Contacts17H-bonds3
Artifact reasongeometry warning; 30 clashes; 3 protein contact clashes; high strain Δ 78.1
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 Current
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 Open
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 -26.191kcal/mol
Ligand efficiency (LE) -0.4850kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.414
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 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 78.07kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 259.15kcal/mol
Minimised FF energy 181.07kcal/mol

SASA & burial

✓ computed
SASA (unbound) 1074.7Ų
Total solvent-accessible surface area of free ligand
BSA total 650.3Ų
Buried surface area upon binding
BSA apolar 596.6Ų
Hydrophobic contacts buried
BSA polar 53.7Ų
Polar contacts buried
Fraction buried 60.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 91.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3615.6Ų
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 4076.6Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1473.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)