FAIRMol

OHD_TB2021_21

Pose ID 10900 Compound 2935 Pose 57

DB SELECTIONDocking 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_21
PDB5S9T

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
40.9 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.67, Jaccard 0.40, H-bond role recall 0.00
Burial
77%
Hydrophobic fit
68%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.688 kcal/mol/HA) ✓ Good fit quality (FQ -6.49) ✓ Strong H-bond network (13 bonds) ✓ Deep burial (77% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ Extreme strain energy (40.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-19.255
kcal/mol
LE
-0.688
kcal/mol/HA
Fit Quality
-6.49
FQ (Leeson)
HAC
28
heavy atoms
MW
405
Da
LogP
2.66
cLogP
Strain ΔE
40.9 kcal/mol
SASA buried
77%
Lipo contact
68% BSA apolar/total
SASA unbound
678 Ų
Apolar buried
356 Ų

Interaction summary

HB 13 HY 16 PI 2 CLASH 4

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

Final rank4.819Score-19.255
Inter norm-0.835Intra norm0.146
Top1000noExcludedno
Contacts16H-bonds13
Artifact reasongeometry warning; 11 clashes; 3 protein clashes; high strain Δ 40.9
Residues
ALA363 ARG361 CYS375 GLY229 GLY376 HIS359 HIS428 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR360 THR374 VAL362

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 overlap8Native recall0.67
Jaccard0.40RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
59 0.41201140335404685 -1.15559 -31.5936 10 15 0 0.00 0.00 - no Open
49 2.0292142834745297 -0.915886 -21.3522 6 20 0 0.00 0.00 - no Open
35 2.6283299162829468 -0.869185 -14.0385 10 15 0 0.00 0.00 - no Open
47 3.4905759248111257 -1.07919 -20.4944 6 22 0 0.00 0.00 - no Open
57 4.819437786996728 -0.834728 -19.2545 13 16 8 0.67 0.00 - 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 -19.255kcal/mol
Ligand efficiency (LE) -0.6877kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.492
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 405.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.66
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 40.90kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 43.63kcal/mol
Minimised FF energy 2.73kcal/mol

SASA & burial

✓ computed
SASA (unbound) 677.8Ų
Total solvent-accessible surface area of free ligand
BSA total 520.2Ų
Buried surface area upon binding
BSA apolar 356.1Ų
Hydrophobic contacts buried
BSA polar 164.1Ų
Polar contacts buried
Fraction buried 76.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 68.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6514.8Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2060.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)