FAIRMol

Z82167273

Pose ID 4674 Compound 665 Pose 611

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 Z82167273
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry medium Native strong SASA done
Strain ΔE
16.5 kcal/mol
Protein clashes
2
Internal clashes
5
Native overlap
contact recall 0.58, Jaccard 0.48, H-bond role recall 0.40
Burial
98%
Hydrophobic fit
82%
Reason: no major geometry red flags detected
2 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.191 kcal/mol/HA) ✓ Good fit quality (FQ -10.67) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ Moderate strain (16.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-28.581
kcal/mol
LE
-1.191
kcal/mol/HA
Fit Quality
-10.67
FQ (Leeson)
HAC
24
heavy atoms
MW
341
Da
LogP
3.92
cLogP
Final rank
1.6581
rank score
Inter norm
-1.304
normalised
Contacts
15
H-bonds 4
Strain ΔE
16.5 kcal/mol
SASA buried
98%
Lipo contact
82% BSA apolar/total
SASA unbound
592 Ų
Apolar buried
479 Ų

Interaction summary

HBD 1 HBA 1 HY 9 PI 2 CLASH 5

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

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 overlap11Native recall0.58
Jaccard0.48RMSD-
HB strict2Strict recall0.33
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
607 0.10723962725857518 -1.09934 -25.8703 1 16 0 0.00 0.00 - no Open
611 1.6580947749220762 -1.30405 -28.5805 4 15 11 0.58 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 -28.581kcal/mol
Ligand efficiency (LE) -1.1909kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.672
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 341.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.92
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 16.47kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 21.87kcal/mol
Minimised FF energy 5.40kcal/mol

SASA & burial

✓ computed
SASA (unbound) 591.5Ų
Total solvent-accessible surface area of free ligand
BSA total 581.4Ų
Buried surface area upon binding
BSA apolar 479.0Ų
Hydrophobic contacts buried
BSA polar 102.4Ų
Polar contacts buried
Fraction buried 98.3%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 82.4%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1614.1Ų
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 921.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)