FAIRMol

OHD_Babesia_50

Pose ID 11563 Compound 4961 Pose 42

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T18
T. brucei TR (Mepacrine binding site (MBS, site 1)) T. brucei Mepacrine binding site (MBS, site 1)
Ligand OHD_Babesia_50
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
79.8 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.92, Jaccard 0.75
Burial
60%
Hydrophobic fit
79%
Reason: strain 79.8 kcal/mol
strain ΔE 79.8 kcal/mol 2 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Medium Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.528 kcal/mol/HA) ✓ Good fit quality (FQ -5.70) ✓ Good H-bonds (3 bonds) ✓ Good burial (60% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Extreme strain energy (79.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (19)
Score
-24.271
kcal/mol
LE
-0.528
kcal/mol/HA
Fit Quality
-5.70
FQ (Leeson)
HAC
46
heavy atoms
MW
631
Da
LogP
2.62
cLogP
Final rank
3.6001
rank score
Inter norm
-0.496
normalised
Contacts
15
H-bonds 3
Strain ΔE
79.8 kcal/mol
SASA buried
60%
Lipo contact
79% BSA apolar/total
SASA unbound
937 Ų
Apolar buried
446 Ų

Interaction summary

HBA 3 HY 9 PI 2 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

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: strict.
Name6RB5Contacts13
PoseOpen native poseHB0
IFP residues
ASP116 GLU18 GLY112 ILE106 LEU17 MET113 SER109 THR117 THR335 TRP21 TYR110 VAL53 VAL58
Current overlap12Native recall0.92
Jaccard0.75RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

493 residues
Protein targetT18Atoms7550
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
42 3.6000794961610736 -0.496315 -24.2713 3 15 12 0.92 - - 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 -24.271kcal/mol
Ligand efficiency (LE) -0.5276kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.695
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 46HA

Physicochemical properties

Molecular weight 630.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.62
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 79.78kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 267.08kcal/mol
Minimised FF energy 187.30kcal/mol

SASA & burial

✓ computed
SASA (unbound) 936.8Ų
Total solvent-accessible surface area of free ligand
BSA total 564.8Ų
Buried surface area upon binding
BSA apolar 445.8Ų
Hydrophobic contacts buried
BSA polar 119.0Ų
Polar contacts buried
Fraction buried 60.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3351.0Ų
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 1478.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)