FAIRMol

Z18451981

Pose ID 4613 Compound 1057 Pose 550

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 Z18451981
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Strong hit SASA cached
Strong candidate with consistent geometry
Binding strong Geometry high Native strong SASA done
Strain ΔE
13.2 kcal/mol
Protein clashes
0
Internal clashes
1
Native overlap
contact recall 0.79, Jaccard 0.79, H-bond role recall 0.40
Burial
86%
Hydrophobic fit
64%
Reason: no major geometry red flags detected
Molecular report
Full metrics ↗
Strong hit Multiple positive indicators. High-priority candidate for follow-up.
✓ Excellent LE (-1.138 kcal/mol/HA) ✓ Good fit quality (FQ -10.04) ✓ Good H-bonds (5 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (64%) ✗ Moderate strain (13.2 kcal/mol)
Score
-26.178
kcal/mol
LE
-1.138
kcal/mol/HA
Fit Quality
-10.04
FQ (Leeson)
HAC
23
heavy atoms
MW
365
Da
LogP
3.62
cLogP
Strain ΔE
13.2 kcal/mol
SASA buried
86%
Lipo contact
64% BSA apolar/total
SASA unbound
597 Ų
Apolar buried
330 Ų

Interaction summary

HB 5 HY 24 PI 6 CLASH 1
Final rank-1.103Score-26.178
Inter norm-1.325Intra norm0.187
Top1000noExcludedno
Contacts15H-bonds5
Artifact reason1 protein contact clash; 3 cofactor-context clashes
Residues
ARG14 CYS168 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER95 TRP221 TYR174 TYR98 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 overlap15Native recall0.79
Jaccard0.79RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
HB same residue3HB residue recall0.60

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
550 -1.1031445926474317 -1.32498 -26.1779 5 15 15 0.79 0.40 - no Current
572 0.5384064847970818 -1.19693 -27.0393 3 17 0 0.00 0.00 - no Open
565 0.7358606903141827 -1.48535 -30.611 3 14 0 0.00 0.00 - no Open
551 2.3826230900915797 -1.2972 -30.215 4 15 0 0.00 0.00 - no Open
563 3.9073879259769755 -1.04293 -23.7375 9 17 0 0.00 0.00 - no Open

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -26.178kcal/mol
Ligand efficiency (LE) -1.1382kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.045
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 23HA

Physicochemical properties

Molecular weight 364.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.62
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 13.19kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 25.76kcal/mol
Minimised FF energy 12.58kcal/mol

SASA & burial

✓ computed
SASA (unbound) 597.5Ų
Total solvent-accessible surface area of free ligand
BSA total 514.9Ų
Buried surface area upon binding
BSA apolar 330.5Ų
Hydrophobic contacts buried
BSA polar 184.3Ų
Polar contacts buried
Fraction buried 86.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1526.1Ų
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 918.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)