FAIRMol

OHD_Babesia_19

Pose ID 9513 Compound 646 Pose 27

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T15
T. brucei TR (Dimer cleft site) T. brucei Dimer cleft site
Ligand OHD_Babesia_19
PDB9IFF

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
58.9 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.69, Jaccard 0.45
Burial
76%
Hydrophobic fit
75%
Reason: strain 58.9 kcal/mol
strain ΔE 58.9 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.725 kcal/mol/HA) ✓ Good fit quality (FQ -7.36) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (76% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Extreme strain energy (58.9 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (22)
Score
-26.083
kcal/mol
LE
-0.725
kcal/mol/HA
Fit Quality
-7.36
FQ (Leeson)
HAC
36
heavy atoms
MW
499
Da
LogP
0.30
cLogP
Strain ΔE
58.9 kcal/mol
SASA buried
76%
Lipo contact
75% BSA apolar/total
SASA unbound
735 Ų
Apolar buried
416 Ų

Interaction summary

HB 10 HY 17 PI 0 CLASH 2

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

Final rank7.654Score-26.083
Inter norm-0.885Intra norm0.161
Top1000noExcludedno
Contacts16H-bonds10
Artifact reasongeometry warning; 22 clashes; 5 protein clashes; high strain Δ 58.9
Residues
ALA209 ALA244 ALA90 ARG74 ASN245 ASP71 GLY246 LEU73 LYS211 LYS89 MET70 PHE83 PRO212 PRO213 TYR210 VAL88

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name9IFFContacts13
PoseOpen native poseHB0
IFP residues
ALA209 ARG74 ASN208 GLY214 GLY215 GLY85 LEU73 LYS211 MET70 PHE83 PRO212 PRO213 VAL88
Current overlap9Native recall0.69
Jaccard0.45RMSD-
HB strict0Strict recall-
HB same residue+role0HB role recall-
HB same residue0HB residue recall-

Protein summary

489 residues
Protein targetT15Atoms7420
Residues489Chains1
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:264; MET:204

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
44 1.452976274811799 -0.937992 -32.885 6 17 0 0.00 - - no Open
39 4.200642631864899 -0.776532 -22.6213 7 20 0 0.00 - - no Open
48 4.703585773444064 -0.844561 -30.2249 6 19 0 0.00 - - no Open
37 4.758837592640915 -0.748282 -30.1587 4 16 0 0.00 - - no Open
18 4.863072999448453 -0.815571 -27.29 9 18 0 0.00 - - no Open
25 4.869203347635882 -0.719158 -17.5583 9 14 0 0.00 - - no Open
23 5.554151874370524 -0.890878 -28.0561 10 20 0 0.00 - - no Open
24 5.904580313916113 -0.711855 -22.6477 7 12 0 0.00 - - no Open
27 7.654408270481058 -0.885409 -26.0831 10 16 9 0.69 - - 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 -26.083kcal/mol
Ligand efficiency (LE) -0.7245kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.364
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 498.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.30
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 58.92kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 133.27kcal/mol
Minimised FF energy 74.34kcal/mol

SASA & burial

✓ computed
SASA (unbound) 735.5Ų
Total solvent-accessible surface area of free ligand
BSA total 558.1Ų
Buried surface area upon binding
BSA apolar 416.3Ų
Hydrophobic contacts buried
BSA polar 141.8Ų
Polar contacts buried
Fraction buried 75.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3021.5Ų
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 4005.2Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1548.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)