FAIRMol

OHD_MAC_21

Pose ID 11240 Compound 3163 Pose 397

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_21
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
45.3 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.58, Jaccard 0.26, H-bond role recall 0.00
Burial
83%
Hydrophobic fit
83%
Reason: strain 45.3 kcal/mol
strain ΔE 45.3 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.625 kcal/mol/HA) ✓ Good fit quality (FQ -6.15) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (83% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Extreme strain energy (45.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (19)
Score
-19.999
kcal/mol
LE
-0.625
kcal/mol/HA
Fit Quality
-6.15
FQ (Leeson)
HAC
32
heavy atoms
MW
433
Da
LogP
-0.00
cLogP
Strain ΔE
45.3 kcal/mol
SASA buried
83%
Lipo contact
83% BSA apolar/total
SASA unbound
738 Ų
Apolar buried
508 Ų

Interaction summary

HB 7 HY 18 PI 2 CLASH 3

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 rank4.965Score-19.999
Inter norm-0.839Intra norm0.214
Top1000noExcludedno
Contacts22H-bonds7
Artifact reasongeometry warning; 19 clashes; 2 protein clashes; high strain Δ 45.3
Residues
ALA284 ARG228 ARG361 CYS375 GLY195 GLY196 GLY197 GLY229 GLY286 GLY376 ILE199 ILE285 LEU227 LEU332 LEU334 PHE198 PHE230 SER200 SER364 THR360 TYR221 VAL362

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
Jaccard0.26RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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
359 2.244470784373827 -0.798467 -14.7208 4 15 0 0.00 0.00 - no Open
357 2.8793379368286023 -0.818089 -19.7883 13 18 0 0.00 0.00 - no Open
339 4.037169782378875 -1.25769 -31.2658 9 19 0 0.00 0.00 - no Open
303 4.54368954996928 -0.824304 -21.8567 11 18 0 0.00 0.00 - no Open
326 4.921780442364073 -1.03614 -25.2784 13 18 0 0.00 0.00 - no Open
397 4.964586519044101 -0.839228 -19.9991 7 22 7 0.58 0.00 - no Current
322 5.335617475749751 -0.879574 -24.4531 11 20 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 -19.999kcal/mol
Ligand efficiency (LE) -0.6250kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.146
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 433.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.00
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 45.28kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 169.39kcal/mol
Minimised FF energy 124.11kcal/mol

SASA & burial

✓ computed
SASA (unbound) 737.8Ų
Total solvent-accessible surface area of free ligand
BSA total 611.5Ų
Buried surface area upon binding
BSA apolar 507.9Ų
Hydrophobic contacts buried
BSA polar 103.6Ų
Polar contacts buried
Fraction buried 82.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 83.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6572.6Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2101.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)