FAIRMol

OHD_TB2021_23

Pose ID 10901 Compound 4817 Pose 58

DB fairmolDocking pose analysis is being read from this database.
Compound detail Protein structures Back to compounds
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_23
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
45.0 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.75, Jaccard 0.41, H-bond role recall 0.00
Burial
79%
Hydrophobic fit
77%
Reason: strain 45.0 kcal/mol
strain ΔE 45.0 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.673 kcal/mol/HA) ✓ Good fit quality (FQ -6.62) ✓ Good H-bonds (4 bonds) ✓ Deep burial (79% SASA buried) ✓ Lipophilic contacts well-matched (77%) ✗ Extreme strain energy (45.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-21.546
kcal/mol
LE
-0.673
kcal/mol/HA
Fit Quality
-6.62
FQ (Leeson)
HAC
32
heavy atoms
MW
462
Da
LogP
4.14
cLogP
Final rank
4.5786
rank score
Inter norm
-0.740
normalised
Contacts
19
H-bonds 12
Strain ΔE
45.0 kcal/mol
SASA buried
79%
Lipo contact
77% BSA apolar/total
SASA unbound
792 Ų
Apolar buried
481 Ų

Interaction summary

HBD 1 HBA 3 HY 8 PI 2 CLASH 1

HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 4.

PI · π–π interactions
Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: permissive.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap9Native recall0.75
Jaccard0.41RMSD-
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
58 4.57860739417685 -0.740279 -21.5462 12 19 9 0.75 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 -21.546kcal/mol
Ligand efficiency (LE) -0.6733kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.621
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties
Molecular weight 461.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.14
Lipinski: ≤ 5
Rotatable bonds 12

Conformational strain (MMFF94s)
Strain energy (ΔE) 44.99kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 54.66kcal/mol
Minimised FF energy 9.67kcal/mol

SASA & burial

✓ computed
SASA (unbound) 792.2Ų
Total solvent-accessible surface area of free ligand
BSA total 624.4Ų
Buried surface area upon binding
BSA apolar 480.6Ų
Hydrophobic contacts buried
BSA polar 143.8Ų
Polar contacts buried
Fraction buried 78.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 77.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6652.7Ų
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 2056.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)