FAIRMol

OHD_MAC_47

Pose ID 11254 Compound 423 Pose 411

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand OHD_MAC_47
PDB5S9T

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
50.2 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.58, Jaccard 0.27, H-bond role recall 1.00
Burial
85%
Hydrophobic fit
78%
Reason: strain 50.2 kcal/mol
strain ΔE 50.2 kcal/mol 1 protein-contact clashes 39% of hydrophobic surface appears solvent-exposed (9/23 atoms). Partial exposure is common but may limit selectivity and membrane permeability.
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 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 (-0.565 kcal/mol/HA) ✓ Good fit quality (FQ -5.65) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (85% SASA buried) ✓ Lipophilic contacts well-matched (78%) ✗ Extreme strain energy (50.2 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (7) ✗ Many internal clashes (15)
Score
-19.193
kcal/mol
LE
-0.565
kcal/mol/HA
Fit Quality
-5.65
FQ (Leeson)
HAC
34
heavy atoms
MW
461
Da
LogP
3.08
cLogP
Final rank
2.2105
rank score
Inter norm
-0.669
normalised
Contacts
21
H-bonds 12
Strain ΔE
50.2 kcal/mol
SASA buried
85%
Lipo contact
78% BSA apolar/total
SASA unbound
783 Ų
Apolar buried
520 Ų

Interaction summary

HBD 2 HBA 4 HY 6 PI 3 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.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap7Native recall0.58
Jaccard0.27RMSD-
HB strict1Strict recall1.00
HB same residue+role1HB role recall1.00
HB same residue1HB residue recall1.00

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
427 1.3468576735481605 -0.808417 -18.675 5 20 0 0.00 0.00 - no Open
372 1.6823460811845725 -0.78016 -19.7888 7 22 0 0.00 0.00 - no Open
411 2.2104857339584942 -0.669199 -19.1927 12 21 7 0.58 1.00 - no Current
444 2.4534108204004426 -0.764614 -17.3765 9 22 0 0.00 0.00 - no Open
378 3.765478119320939 -0.643558 -19.7646 4 17 0 0.00 0.00 - no Open
337 5.369926118840396 -0.895866 -25.0991 15 23 0 0.00 0.00 - no Open
313 5.56934551442081 -0.761521 -17.001 13 17 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 -19.193kcal/mol
Ligand efficiency (LE) -0.5645kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.648
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 461.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.08
Lipinski: ≤ 5
Rotatable bonds 12

Conformational strain (MMFF94s)

Strain energy (ΔE) 50.21kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 131.23kcal/mol
Minimised FF energy 81.02kcal/mol

SASA & burial

✓ computed
SASA (unbound) 783.1Ų
Total solvent-accessible surface area of free ligand
BSA total 666.8Ų
Buried surface area upon binding
BSA apolar 520.3Ų
Hydrophobic contacts buried
BSA polar 146.5Ų
Polar contacts buried
Fraction buried 85.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6597.4Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2088.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)