FAIRMol

OHD_Babesia_21

Pose ID 10190 Compound 644 Pose 25

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T16
T. brucei TR (Dimer interface (site 2)) T. brucei Dimer interface (site 2)
Ligand OHD_Babesia_21
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
56.9 kcal/mol
Protein clashes
0
Internal clashes
23
Native overlap
contact recall 0.67, Jaccard 0.42
Burial
61%
Hydrophobic fit
79%
Reason: 23 internal clashes, strain 56.9 kcal/mol
strain ΔE 56.9 kcal/mol 23 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.594 kcal/mol/HA) ✓ Good fit quality (FQ -6.16) ✓ Strong H-bond network (6 bonds) ✓ Good burial (61% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Extreme strain energy (56.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (23)
Score
-23.155
kcal/mol
LE
-0.594
kcal/mol/HA
Fit Quality
-6.16
FQ (Leeson)
HAC
39
heavy atoms
MW
545
Da
LogP
-0.72
cLogP
Strain ΔE
56.9 kcal/mol
SASA buried
61%
Lipo contact
79% BSA apolar/total
SASA unbound
766 Ų
Apolar buried
370 Ų

Interaction summary

HB 6 HY 13 PI 0 CLASH 0

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

No clash · clashes detected for this pose.
Final rank4.546Score-23.155
Inter norm-0.612Intra norm0.018
Top1000noExcludedno
Contacts15H-bonds6
Artifact reasongeometry warning; 23 clashes; 2 protein clashes; high strain Δ 56.9
Residues
ALA209 ALA90 ASN208 ASN91 GLY214 GLY215 GLY85 LYS211 LYS89 MET70 PRO212 PRO213 SER86 TYR210 VAL88

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6RB5Contacts12
PoseOpen native poseHB0
IFP residues
ALA90 ARG74 GLY85 LEU73 LYS89 MET70 PHE83 PRO212 PRO213 SER86 SER87 VAL88
Current overlap8Native recall0.67
Jaccard0.42RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

493 residues
Protein targetT16Atoms7551
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
25 4.545849938916814 -0.612181 -23.1555 6 15 8 0.67 - - no Current
50 4.558542500238084 -0.750709 -26.6034 12 17 0 0.00 - - no Open
37 5.41903790277031 -0.585366 -22.3397 7 9 0 0.00 - - no Open
46 5.925882696488416 -0.670681 -24.862 9 11 0 0.00 - - no Open
29 7.449320461081546 -0.724751 -26.6738 7 16 0 0.00 - - no Open

Molecular metrics

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

Scoring & efficiency

Docking score -23.155kcal/mol
Ligand efficiency (LE) -0.5937kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.162
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 39HA

Physicochemical properties

Molecular weight 544.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.72
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 56.89kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 155.70kcal/mol
Minimised FF energy 98.81kcal/mol

SASA & burial

✓ computed
SASA (unbound) 765.8Ų
Total solvent-accessible surface area of free ligand
BSA total 469.9Ų
Buried surface area upon binding
BSA apolar 369.9Ų
Hydrophobic contacts buried
BSA polar 99.9Ų
Polar contacts buried
Fraction buried 61.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3203.6Ų
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 1457.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)