FAIRMol

Z49732277

Pose ID 4676 Compound 694 Pose 613

DB SELECTIONDocking 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 Z49732277
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
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
33.6 kcal/mol
Protein clashes
5
Internal clashes
5
Native overlap
contact recall 0.68, Jaccard 0.59, H-bond role recall 0.00
Burial
93%
Hydrophobic fit
84%
Reason: no major geometry red flags detected
5 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.951 kcal/mol/HA) ✓ Good fit quality (FQ -9.17) ✓ Good H-bonds (3 bonds) ✓ Deep burial (93% SASA buried) ✓ Lipophilic contacts well-matched (84%) ✗ Very high strain energy (33.6 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (13)
Score
-28.518
kcal/mol
LE
-0.951
kcal/mol/HA
Fit Quality
-9.17
FQ (Leeson)
HAC
30
heavy atoms
MW
411
Da
LogP
4.50
cLogP
Strain ΔE
33.6 kcal/mol
SASA buried
93%
Lipo contact
84% BSA apolar/total
SASA unbound
661 Ų
Apolar buried
514 Ų

Interaction summary

HB 3 HY 24 PI 6 CLASH 5
Final rank1.174Score-28.518
Inter norm-1.067Intra norm0.116
Top1000noExcludedno
Contacts16H-bonds3
Artifact reasongeometry warning; 13 clashes; 5 protein contact clashes; high strain Δ 33.6
Residues
ARG14 ASN175 ASP161 CYS168 LEU209 MET163 MET213 NAP301 PHE171 PHE97 PRO167 PRO210 SER95 TRP221 TYR174 VAL206

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

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 overlap13Native recall0.68
Jaccard0.59RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue1HB residue recall0.20

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
610 0.6738756674514651 -0.871574 -27.3931 0 20 0 0.00 0.00 - no Open
613 1.1737854711301798 -1.06654 -28.5184 3 16 13 0.68 0.00 - 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 -28.518kcal/mol
Ligand efficiency (LE) -0.9506kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.170
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 411.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.50
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 33.56kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 114.01kcal/mol
Minimised FF energy 80.45kcal/mol

SASA & burial

✓ computed
SASA (unbound) 660.8Ų
Total solvent-accessible surface area of free ligand
BSA total 612.4Ų
Buried surface area upon binding
BSA apolar 514.3Ų
Hydrophobic contacts buried
BSA polar 98.1Ų
Polar contacts buried
Fraction buried 92.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 84.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1696.0Ų
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 918.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)