FAIRMol

Z49605089

Pose ID 8066 Compound 2813 Pose 614

DB fairmolDocking 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 Z49605089
PDB6FXS

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
54.6 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 1.00, Jaccard 0.84, H-bond role recall 0.50
Burial
76%
Hydrophobic fit
68%
Reason: strain 54.6 kcal/mol
strain ΔE 54.6 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 (-1.138 kcal/mol/HA) ✓ Good fit quality (FQ -10.86) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (76% SASA buried) ✓ Lipophilic contacts well-matched (68%) ✗ Extreme strain energy (54.6 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-32.995
kcal/mol
LE
-1.138
kcal/mol/HA
Fit Quality
-10.86
FQ (Leeson)
HAC
29
heavy atoms
MW
419
Da
LogP
0.56
cLogP
Strain ΔE
54.6 kcal/mol
SASA buried
76%
Lipo contact
68% BSA apolar/total
SASA unbound
668 Ų
Apolar buried
349 Ų

Interaction summary

HB 11 HY 5 PI 3 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 rank3.344Score-32.995
Inter norm-1.109Intra norm-0.029
Top1000noExcludedno
Contacts19H-bonds11
Artifact reasongeometry warning; 10 clashes; 2 protein clashes; high strain Δ 54.5
Residues
ARG140 ARG144 ASN106 HIS105 HIS141 MET101 TYR97 ARG116 ARG46 ASP13 CYS72 GLY73 GLY75 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 overlap16Native recall1.00
Jaccard0.84RMSD-
HB strict6Strict recall0.50
HB same residue+role5HB role recall0.50
HB same residue6HB residue recall0.60

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
612 1.1133265517755317 -1.05759 -31.0616 5 16 0 0.00 0.00 - no Open
614 3.344369013161312 -1.10874 -32.9951 11 19 16 1.00 0.50 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -32.995kcal/mol
Ligand efficiency (LE) -1.1378kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.861
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 419.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.56
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 54.63kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 46.78kcal/mol
Minimised FF energy -7.85kcal/mol

SASA & burial

✓ computed
SASA (unbound) 667.8Ų
Total solvent-accessible surface area of free ligand
BSA total 509.9Ų
Buried surface area upon binding
BSA apolar 349.3Ų
Hydrophobic contacts buried
BSA polar 160.6Ų
Polar contacts buried
Fraction buried 76.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 68.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2188.4Ų
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 2454.8Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 761.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)