FAIRMol

OHD_TbNat_15

Pose ID 4823 Compound 3103 Pose 82

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T08
T. brucei PTR1 T. brucei
Ligand OHD_TbNat_15
PDB6RX6

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 medium Native strong SASA done
Strain ΔE
22.3 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.68, Jaccard 0.52, H-bond role recall 0.20
Burial
98%
Hydrophobic fit
79%
Reason: no major geometry red flags detected
2 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.421 kcal/mol/HA) ✓ Good fit quality (FQ -13.26) ✓ Good H-bonds (4 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ High strain energy (22.3 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-38.372
kcal/mol
LE
-1.421
kcal/mol/HA
Fit Quality
-13.26
FQ (Leeson)
HAC
27
heavy atoms
MW
365
Da
LogP
3.52
cLogP
Final rank
1.8180
rank score
Inter norm
-1.182
normalised
Contacts
19
H-bonds 5
Strain ΔE
22.3 kcal/mol
SASA buried
98%
Lipo contact
79% BSA apolar/total
SASA unbound
630 Ų
Apolar buried
489 Ų

Interaction summary

HBD 2 HBA 2 HY 8 PI 2 CLASH 3

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.
NameTbPTR1_cW_6RX6_ReadyContacts19
PoseOpen native poseHB0
IFP residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER207 SER95 TRP221 TYR174 TYR98 VAL206
Current overlap13Native recall0.68
Jaccard0.52RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

Protein summary

258 residues
Protein targetT08Atoms3881
Residues258Chains2
Residue summaryLEU:437; VAL:433; ALA:361; ARG:288; ILE:266; GLU:210; LYS:198; SER:198; ASN:182; THR:154; GLN:153; PHE:140; PRO:140; TYR:126; GLY:112; HIS:103

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:NAP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
82 1.8180479671230898 -1.18206 -38.3723 5 19 13 0.68 0.20 - 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 -38.372kcal/mol
Ligand efficiency (LE) -1.4212kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -13.259
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 365.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.52
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 22.33kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 93.39kcal/mol
Minimised FF energy 71.06kcal/mol

SASA & burial

✓ computed
SASA (unbound) 630.1Ų
Total solvent-accessible surface area of free ligand
BSA total 616.8Ų
Buried surface area upon binding
BSA apolar 488.9Ų
Hydrophobic contacts buried
BSA polar 127.9Ų
Polar contacts buried
Fraction buried 97.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 79.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1641.2Ų
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 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 910.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)