FAIRMol

Z49613286

Pose ID 8056 Compound 1321 Pose 604

DB SELECTIONDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T12
T. brucei R5P T. brucei
Ligand Z49613286
PDB6FXS

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
34.8 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.94, Jaccard 0.75, H-bond role recall 0.20
Burial
83%
Hydrophobic fit
63%
Reason: 6 internal clashes
6 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.107 kcal/mol/HA) ✓ Good fit quality (FQ -10.20) ✓ Strong H-bond network (12 bonds) ✓ Deep burial (83% SASA buried) ✓ Lipophilic contacts well-matched (63%) ✗ Very high strain energy (34.8 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-28.772
kcal/mol
LE
-1.107
kcal/mol/HA
Fit Quality
-10.20
FQ (Leeson)
HAC
26
heavy atoms
MW
358
Da
LogP
0.11
cLogP
Strain ΔE
34.8 kcal/mol
SASA buried
83%
Lipo contact
63% BSA apolar/total
SASA unbound
585 Ų
Apolar buried
304 Ų

Interaction summary

HB 12 HY 9 PI 2 CLASH 6

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 rank3.595Score-28.772
Inter norm-1.233Intra norm0.126
Top1000noExcludedno
Contacts19H-bonds12
Artifact reasongeometry warning; 9 clashes; 2 protein clashes; high strain Δ 34.8
Residues
ALA102 ARG140 ARG144 ASN106 HIS105 HIS141 MET101 TYR97 ARG116 ARG46 ASP13 CYS72 GLY73 GLY77 HIS14 ILE15 ILE76 SER74 TYR49

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name6FXSContacts16
PoseOpen native poseHB0
IFP residues
ARG140 ARG144 ASN106 HIS105 HIS141 ARG46 ASP13 CYS72 GLY73 GLY75 GLY77 HIS14 ILE15 ILE76 SER74 TYR49
Current overlap15Native recall0.94
Jaccard0.75RMSD-
HB strict3Strict recall0.25
HB same residue+role2HB role recall0.20
HB same residue4HB residue recall0.40

Protein summary

302 residues
Protein targetT12Atoms4598
Residues302Chains2
Residue summaryARG:576; ILE:456; VAL:448; GLU:360; ALA:340; LEU:304; TYR:252; HIS:204; PRO:196; THR:196; GLY:182; LYS:176; ASP:168; PHE:160; MET:153; SER:121

Receptor context

1 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 1 Excluded HETATM 0
Kept cofactors / ions
A:CSD72

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
615 1.9814526955982046 -0.81173 -22.1082 8 14 0 0.00 0.00 - no Open
593 2.1246165125633567 -1.45629 -41.4862 14 11 0 0.00 0.00 - no Open
600 2.129495667847415 -1.52839 -33.3711 10 20 0 0.00 0.00 - no Open
610 2.3040923937170814 -0.959116 -25.444 4 12 0 0.00 0.00 - no Open
609 2.662306438978959 -1.09542 -25.9422 8 15 0 0.00 0.00 - no Open
604 3.5954968466101134 -1.23305 -28.772 12 19 15 0.94 0.20 - no Current
624 3.6470603085999342 -1.05347 -34.1919 9 16 0 0.00 0.00 - no Open
622 3.9687442161044406 -0.993806 -26.7144 9 14 0 0.00 0.00 - no Open
614 5.561407115049735 -1.25648 -39.0428 16 17 5 0.31 0.30 - 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 -28.772kcal/mol
Ligand efficiency (LE) -1.1066kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.196
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 358.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.11
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 34.81kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 204.83kcal/mol
Minimised FF energy 170.02kcal/mol

SASA & burial

✓ computed
SASA (unbound) 585.3Ų
Total solvent-accessible surface area of free ligand
BSA total 483.4Ų
Buried surface area upon binding
BSA apolar 303.9Ų
Hydrophobic contacts buried
BSA polar 179.5Ų
Polar contacts buried
Fraction buried 82.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 62.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2058.2Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 767.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)