FAIRMol

Z45290023

Pose ID 7868 Compound 3838 Pose 416

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 Z45290023
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
23.7 kcal/mol
Protein clashes
8
Internal clashes
6
Native overlap
contact recall 0.81, Jaccard 0.72, H-bond role recall 0.60
Burial
76%
Hydrophobic fit
67%
Reason: 6 internal clashes
8 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.245 kcal/mol/HA) ✓ Good fit quality (FQ -11.16) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (76% SASA buried) ✓ Lipophilic contacts well-matched (67%) ✗ High strain energy (23.7 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (8) ✗ Internal clashes (6)
Score
-29.878
kcal/mol
LE
-1.245
kcal/mol/HA
Fit Quality
-11.16
FQ (Leeson)
HAC
24
heavy atoms
MW
359
Da
LogP
3.03
cLogP
Strain ΔE
23.7 kcal/mol
SASA buried
76%
Lipo contact
67% BSA apolar/total
SASA unbound
604 Ų
Apolar buried
310 Ų

Interaction summary

HB 11 HY 6 PI 3 CLASH 0
Final rank0.798Score-29.878
Inter norm-1.257Intra norm0.012
Top1000noExcludedno
Contacts15H-bonds11
Artifact reasongeometry warning; 6 clashes; 8 protein contact clashes; moderate strain Δ 23.7
Residues
ARG140 ARG144 ASN106 HIS105 HIS141 MET101 ARG116 ARG46 CYS72 GLY73 GLY77 HIS14 ILE15 ILE76 SER74

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

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 overlap13Native recall0.81
Jaccard0.72RMSD-
HB strict6Strict recall0.50
HB same residue+role6HB role recall0.60
HB same residue8HB residue recall0.80

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

No clash · clashes detected for this pose.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
416 0.7977187698621058 -1.25698 -29.8779 11 15 13 0.81 0.60 - no Current
442 1.9904283981561657 -0.819566 -19.857 4 9 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 -29.878kcal/mol
Ligand efficiency (LE) -1.2449kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.157
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 359.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.03
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 23.68kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -43.12kcal/mol
Minimised FF energy -66.79kcal/mol

SASA & burial

✓ computed
SASA (unbound) 604.5Ų
Total solvent-accessible surface area of free ligand
BSA total 461.8Ų
Buried surface area upon binding
BSA apolar 310.5Ų
Hydrophobic contacts buried
BSA polar 151.3Ų
Polar contacts buried
Fraction buried 76.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 67.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2117.6Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 757.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)