FAIRMol

OHD_TB2020_17

Pose ID 13588 Compound 3800 Pose 30

DB SELECTIONDocking pose analysis is being read from this database.
Compound detail Protein structures Back to compounds
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T21
T. cruzi R5P T. cruzi
Ligand OHD_TB2020_17
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
67.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 1.00, Jaccard 0.74, H-bond role recall 0.44
Burial
74%
Hydrophobic fit
81%
Reason: strain 67.3 kcal/mol
strain ΔE 67.3 kcal/mol 1 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Algae IC₅₀
Cat. 2 — Toxic (1–10 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG High Ames Clear DILI Low
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.538 kcal/mol/HA) ✓ Good fit quality (FQ -5.43) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (74% SASA buried) ✓ Lipophilic contacts well-matched (81%) ✗ Extreme strain energy (67.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (17)
Score
-18.831
kcal/mol
LE
-0.538
kcal/mol/HA
Fit Quality
-5.43
FQ (Leeson)
HAC
35
heavy atoms
MW
497
Da
LogP
3.67
cLogP
Final rank
3.5030
rank score
Inter norm
-0.709
normalised
Contacts
19
H-bonds 11
Strain ΔE
67.3 kcal/mol
SASA buried
74%
Lipo contact
81% BSA apolar/total
SASA unbound
780 Ų
Apolar buried
466 Ų

Interaction summary

HBD 2 HBA 4 HY 3 PI 5 CLASH 1

HBD/HBA · H-bonds (geometric)
HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 5.

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.
Name3K7OContacts14
PoseOpen native poseHB0
IFP residues
ARG137 ARG141 ASN103 HIS102 HIS138 ASP10 CYS69 GLY70 GLY74 HIS11 ILE73 PRO12 SER71 TYR46
Current overlap14Native recall1.00
Jaccard0.74RMSD-
HB strict6Strict recall0.50
HB same residue+role4HB role recall0.44
HB same residue4HB residue recall0.50

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
42 1.9264860009824365 -0.743576 -22.1999 5 17 0 0.00 0.00 - no Open
30 3.503007672678255 -0.708799 -18.8309 11 19 14 1.00 0.44 - no Current
44 3.7102556706653336 -0.750081 -22.0769 4 18 0 0.00 0.00 - no Open
35 4.627384423488405 -0.653428 -21.3157 6 14 0 0.00 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 -18.831kcal/mol
Ligand efficiency (LE) -0.5380kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.427
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 35HA

Physicochemical properties
Molecular weight 496.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.67
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)
Strain energy (ΔE) 67.27kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 79.13kcal/mol
Minimised FF energy 11.86kcal/mol

SASA & burial

✓ computed
SASA (unbound) 780.3Ų
Total solvent-accessible surface area of free ligand
BSA total 574.9Ų
Buried surface area upon binding
BSA apolar 466.1Ų
Hydrophobic contacts buried
BSA polar 108.8Ų
Polar contacts buried
Fraction buried 73.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2367.6Ų
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 2482.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 784.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)