FAIRMol

OHD_TB2021_35

Pose ID 10903 Compound 1235 Pose 60

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand OHD_TB2021_35
PDB5S9T

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 high Native strong SASA done
Strain ΔE
26.6 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.33, Jaccard 0.20, H-bond role recall 1.00
Burial
85%
Hydrophobic fit
68%
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 (-0.959 kcal/mol/HA) ✓ Good fit quality (FQ -8.03) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (85% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ High strain energy (26.6 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-19.181
kcal/mol
LE
-0.959
kcal/mol/HA
Fit Quality
-8.03
FQ (Leeson)
HAC
20
heavy atoms
MW
301
Da
LogP
0.51
cLogP
Strain ΔE
26.6 kcal/mol
SASA buried
85%
Lipo contact
68% BSA apolar/total
SASA unbound
507 Ų
Apolar buried
293 Ų

Interaction summary

HB 9 HY 16 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 rank3.935Score-19.181
Inter norm-1.181Intra norm0.214
Top1000noExcludedno
Contacts12H-bonds9
Artifact reasongeometry warning; 5 clashes; 4 protein clashes; moderate strain Δ 26.6
Residues
ALA284 ARG287 ARG331 ASP330 FAD501 GLY197 GLY286 ILE199 LEU332 MET333 PHE198 SER200

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap4Native recall0.33
Jaccard0.20RMSD-
HB strict1Strict recall1.00
HB same residue+role1HB role recall1.00
HB same residue1HB residue recall1.00

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
51 1.7406734057768396 -1.55099 -25.3992 14 15 0 0.00 0.00 - no Open
63 2.0699265523486603 -1.3784 -25.6176 12 16 0 0.00 0.00 - no Open
30 3.037310309051502 -1.6924 -29.4294 12 19 0 0.00 0.00 - no Open
60 3.9346894583368592 -1.18087 -19.1811 9 12 4 0.33 1.00 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -19.181kcal/mol
Ligand efficiency (LE) -0.9591kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.026
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 20HA

Physicochemical properties

Molecular weight 301.2Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.51
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.62kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 60.34kcal/mol
Minimised FF energy 33.72kcal/mol

SASA & burial

✓ computed
SASA (unbound) 507.1Ų
Total solvent-accessible surface area of free ligand
BSA total 429.7Ų
Buried surface area upon binding
BSA apolar 293.2Ų
Hydrophobic contacts buried
BSA polar 136.4Ų
Polar contacts buried
Fraction buried 84.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 68.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6326.1Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2078.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)