FAIRMol

Z28162094

Pose ID 4648 Compound 2875 Pose 585

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 Z28162094
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 mixed SASA done
Strain ΔE
31.7 kcal/mol
Protein clashes
8
Internal clashes
9
Native overlap
contact recall 0.47, Jaccard 0.35, H-bond role recall 0.00
Burial
99%
Hydrophobic fit
91%
Reason: 9 internal clashes
8 protein-contact clashes 9 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.671 kcal/mol/HA) ✓ Good fit quality (FQ -6.41) ✓ Deep burial (99% SASA buried) ✓ Lipophilic contacts well-matched (91%) ✗ Very high strain energy (31.7 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (9) ✗ Many internal clashes (12)
Score
-19.462
kcal/mol
LE
-0.671
kcal/mol/HA
Fit Quality
-6.41
FQ (Leeson)
HAC
29
heavy atoms
MW
404
Da
LogP
5.45
cLogP
Strain ΔE
31.7 kcal/mol
SASA buried
99%
Lipo contact
91% BSA apolar/total
SASA unbound
676 Ų
Apolar buried
607 Ų

Interaction summary

HB 2 HY 24 PI 6 CLASH 9
Final rank1.853Score-19.462
Inter norm-1.036Intra norm0.365
Top1000noExcludedno
Contacts16H-bonds2
Artifact reasongeometry warning; 12 clashes; 9 protein contact clashes; 1 cofactor-context clash; high strain Δ 31.7
Residues
ARG14 ASN175 ASP161 CYS168 LEU263 LYS224 MET163 NAP301 PHE171 PHE97 PRO167 TRP221 TYR174 VAL206 ALA268 HIS267

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 overlap9Native recall0.47
Jaccard0.35RMSD-
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
585 1.8531693552790127 -1.03623 -19.4624 2 16 9 0.47 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 -19.462kcal/mol
Ligand efficiency (LE) -0.6711kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.406
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 403.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.45
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 31.67kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 77.19kcal/mol
Minimised FF energy 45.52kcal/mol

SASA & burial

✓ computed
SASA (unbound) 676.5Ų
Total solvent-accessible surface area of free ligand
BSA total 668.2Ų
Buried surface area upon binding
BSA apolar 606.6Ų
Hydrophobic contacts buried
BSA polar 61.6Ų
Polar contacts buried
Fraction buried 98.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1744.5Ų
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 918.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)