FAIRMol

OHD_TB2021_36

Pose ID 13594 Compound 1141 Pose 36

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T21
T. cruzi R5P T. cruzi
Ligand OHD_TB2021_36
PDB3K7O

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
48.1 kcal/mol
Protein clashes
10
Internal clashes
10
Native overlap
contact recall 0.93, Jaccard 0.72, H-bond role recall 0.67
Burial
82%
Hydrophobic fit
62%
Reason: 10 protein-contact clashes, 10 internal clashes, strain 48.1 kcal/mol
strain ΔE 48.1 kcal/mol 10 protein-contact clashes 10 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.698 kcal/mol/HA) ✓ Good fit quality (FQ -6.16) ✓ Strong H-bond network (16 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (62%) ✗ Extreme strain energy (48.1 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (5)
Score
-16.053
kcal/mol
LE
-0.698
kcal/mol/HA
Fit Quality
-6.16
FQ (Leeson)
HAC
23
heavy atoms
MW
347
Da
LogP
-0.54
cLogP
Strain ΔE
48.1 kcal/mol
SASA buried
82%
Lipo contact
62% BSA apolar/total
SASA unbound
583 Ų
Apolar buried
296 Ų

Interaction summary

HB 16 HY 3 PI 1 CLASH 10

HB · H-bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

PI · π–π interactions

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

HY · Hydrophobic contacts

CLASH · Clashes

Final rank5.629Score-16.053
Inter norm-1.050Intra norm0.352
Top1000noExcludedno
Contacts17H-bonds16
Artifact reasongeometry warning; 5 clashes; 3 protein clashes; high strain Δ 48.0
Residues
ARG137 ARG141 ASN103 HIS102 MET98 ASP10 ASP45 CYS69 GLY70 GLY72 GLY74 HIS11 ILE73 PRO12 SER71 TYR46 VAL44

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name3K7OContacts14
PoseOpen native poseHB0
IFP residues
ARG137 ARG141 ASN103 HIS102 HIS138 ASP10 CYS69 GLY70 GLY74 HIS11 ILE73 PRO12 SER71 TYR46
Current overlap13Native recall0.93
Jaccard0.72RMSD-
HB strict8Strict recall0.67
HB same residue+role6HB role recall0.67
HB same residue6HB residue recall0.75

Protein summary

305 residues
Protein targetT21Atoms4646
Residues305Chains2
Residue summaryARG:576; ILE:532; VAL:512; GLU:420; ALA:360; PHE:240; HIS:238; LYS:220; THR:210; LEU:190; PRO:168; TYR:168; GLY:154; SER:154; ASP:144; ASN:112

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
52 0.39888311726196213 -1.49478 -32.7747 11 17 0 0.00 0.00 - no Open
63 1.390351737555636 -1.47841 -33.555 16 17 0 0.00 0.00 - no Open
64 1.5404708740171311 -1.28844 -24.3069 11 18 0 0.00 0.00 - no Open
55 1.8635607182521439 -1.02657 -20.4374 5 17 0 0.00 0.00 - no Open
36 5.629077189323515 -1.04968 -16.0535 16 17 13 0.93 0.67 - 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 -16.053kcal/mol
Ligand efficiency (LE) -0.6980kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.160
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 347.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.54
Lipinski: ≤ 5
Rotatable bonds 12

Conformational strain (MMFF94s)

Strain energy (ΔE) 48.10kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 29.54kcal/mol
Minimised FF energy -18.57kcal/mol

SASA & burial

✓ computed
SASA (unbound) 582.9Ų
Total solvent-accessible surface area of free ligand
BSA total 475.3Ų
Buried surface area upon binding
BSA apolar 296.2Ų
Hydrophobic contacts buried
BSA polar 179.1Ų
Polar contacts buried
Fraction buried 81.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 62.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2109.8Ų
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 2482.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 741.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)