FAIRMol

Z49734016

Pose ID 8057 Compound 331 Pose 605

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 Z49734016
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
41.8 kcal/mol
Protein clashes
6
Internal clashes
6
Native overlap
contact recall 0.94, Jaccard 0.83, H-bond role recall 0.40
Burial
71%
Hydrophobic fit
69%
Reason: 6 internal clashes
6 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.724 kcal/mol/HA) ✓ Good fit quality (FQ -6.91) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (71% SASA buried) ✓ Lipophilic contacts well-matched (69%) ✗ Extreme strain energy (41.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-20.983
kcal/mol
LE
-0.724
kcal/mol/HA
Fit Quality
-6.91
FQ (Leeson)
HAC
29
heavy atoms
MW
408
Da
LogP
3.56
cLogP
Strain ΔE
41.8 kcal/mol
SASA buried
71%
Lipo contact
69% BSA apolar/total
SASA unbound
696 Ų
Apolar buried
343 Ų

Interaction summary

HB 10 HY 13 PI 3 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 rank6.516Score-20.983
Inter norm-0.924Intra norm0.201
Top1000noExcludedno
Contacts17H-bonds10
Artifact reasongeometry warning; 14 clashes; 4 protein clashes; high strain Δ 41.5
Residues
ALA102 ARG140 ARG144 ASN106 HIS105 HIS141 MET101 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
Jaccard0.83RMSD-
HB strict4Strict recall0.33
HB same residue+role4HB role recall0.40
HB same residue5HB residue recall0.50

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
594 0.6547279094204518 -1.21427 -33.0798 7 15 0 0.00 0.00 - no Open
608 1.3120767754076195 -1.13381 -29.6637 7 12 0 0.00 0.00 - no Open
601 1.5338364307210228 -1.184 -35.5526 9 21 0 0.00 0.00 - no Open
611 2.0085429260812084 -0.922927 -27.4092 3 17 0 0.00 0.00 - no Open
600 2.169770923115749 -0.961824 -27.1396 3 15 0 0.00 0.00 - no Open
594 2.3539939501104934 -0.905103 -24.472 7 17 0 0.00 0.00 - no Open
627 3.9297746209403894 -0.827527 -25.6648 7 12 0 0.00 0.00 - no Open
610 4.395035279576928 -0.959762 -27.7016 9 15 0 0.00 0.00 - no Open
616 4.913412662238806 -0.960121 -29.341 8 21 0 0.00 0.00 - no Open
605 6.5157676791760775 -0.924269 -20.9833 10 17 15 0.94 0.40 - 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 -20.983kcal/mol
Ligand efficiency (LE) -0.7236kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.907
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 408.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.56
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.79kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 85.59kcal/mol
Minimised FF energy 43.81kcal/mol

SASA & burial

✓ computed
SASA (unbound) 696.4Ų
Total solvent-accessible surface area of free ligand
BSA total 494.6Ų
Buried surface area upon binding
BSA apolar 343.3Ų
Hydrophobic contacts buried
BSA polar 151.3Ų
Polar contacts buried
Fraction buried 71.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 69.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2209.2Ų
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 780.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)