FAIRMol

Z56761309

Pose ID 4551 Compound 2806 Pose 488

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T07
T. brucei PTR1 T. brucei
Ligand Z56761309
PDB6RX6

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
30.6 kcal/mol
Protein clashes
6
Internal clashes
11
Native overlap
contact recall 0.79, Jaccard 0.68, H-bond role recall 0.40
Burial
98%
Hydrophobic fit
79%
Reason: 11 internal clashes
6 protein-contact clashes 11 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.935 kcal/mol/HA) ✓ Good fit quality (FQ -8.62) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Very high strain energy (30.6 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (6) ✗ Many internal clashes (11)
Score
-24.320
kcal/mol
LE
-0.935
kcal/mol/HA
Fit Quality
-8.62
FQ (Leeson)
HAC
26
heavy atoms
MW
362
Da
LogP
0.13
cLogP
Strain ΔE
30.6 kcal/mol
SASA buried
98%
Lipo contact
79% BSA apolar/total
SASA unbound
585 Ų
Apolar buried
449 Ų

Interaction summary

HB 10 HY 24 PI 2 CLASH 11

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 rank1.059Score-24.320
Inter norm-1.165Intra norm0.229
Top1000noExcludedno
Contacts18H-bonds10
Artifact reasongeometry warning; 11 clashes; 6 protein contact clashes; 2 severe cofactor-context clashes; high strain Δ 30.6
Residues
ALA96 ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LEU263 LYS178 MET163 NAP301 PHE97 PRO210 SER207 SER95 TRP221 TYR174 VAL206

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
NameTbPTR1_cW_6RX6_ReadyContacts19
PoseOpen native poseHB0
IFP residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER207 SER95 TRP221 TYR174 TYR98 VAL206
Current overlap15Native recall0.79
Jaccard0.68RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue3HB residue recall0.60

Protein summary

275 residues
Protein targetT07Atoms3932
Residues275Chains3
Residue summaryLEU:437; VAL:433; ALA:361; ARG:288; ILE:266; GLU:210; LYS:198; SER:198; ASN:182; THR:154; GLN:153; PHE:140; PRO:140; TYR:126; GLY:112; HIS:103

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:NAP301

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
488 1.0586621575571242 -1.16481 -24.3199 10 18 15 0.79 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 -24.320kcal/mol
Ligand efficiency (LE) -0.9354kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.618
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 362.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.13
Lipinski: ≤ 5
Rotatable bonds 2

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.59kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 182.12kcal/mol
Minimised FF energy 151.53kcal/mol

SASA & burial

✓ computed
SASA (unbound) 584.6Ų
Total solvent-accessible surface area of free ligand
BSA total 570.0Ų
Buried surface area upon binding
BSA apolar 449.3Ų
Hydrophobic contacts buried
BSA polar 120.7Ų
Polar contacts buried
Fraction buried 97.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1598.9Ų
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 2051.9Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 915.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)