FAIRMol

Z49890540

Pose ID 4665 Compound 228 Pose 602

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 Z49890540
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
13.7 kcal/mol
Protein clashes
0
Internal clashes
11
Native overlap
contact recall 0.63, Jaccard 0.63, H-bond role recall 0.40
Burial
85%
Hydrophobic fit
79%
Reason: 11 internal clashes
11 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.190 kcal/mol/HA) ✓ Good fit quality (FQ -10.81) ✓ Good H-bonds (5 bonds) ✓ Deep burial (85% SASA buried) ✓ Lipophilic contacts well-matched (79%) ✗ Moderate strain (13.7 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-29.738
kcal/mol
LE
-1.190
kcal/mol/HA
Fit Quality
-10.81
FQ (Leeson)
HAC
25
heavy atoms
MW
348
Da
LogP
4.61
cLogP
Strain ΔE
13.7 kcal/mol
SASA buried
85%
Lipo contact
79% BSA apolar/total
SASA unbound
566 Ų
Apolar buried
381 Ų

Interaction summary

HB 5 HY 24 PI 5 CLASH 0

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

No clash · clashes detected for this pose.
Final rank0.114Score-29.738
Inter norm-1.271Intra norm0.082
Top1000noExcludedno
Contacts12H-bonds5
Artifact reasongeometry warning; 11 clashes; 1 protein contact clash; 1 severe cofactor-context clash
Residues
ARG14 ASP161 LEU208 LEU209 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 TRP221 TYR174

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 overlap12Native recall0.63
Jaccard0.63RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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
602 0.11430096132212113 -1.27135 -29.7382 5 12 12 0.63 0.40 - no Current
616 0.8791360147483075 -0.830152 -18.6899 4 13 0 0.00 0.00 - no Open
601 1.2194364801494049 -1.02909 -25.5113 4 16 0 0.00 0.00 - no Open
612 1.5874584481341056 -1.13378 -28.2176 3 15 0 0.00 0.00 - no Open
595 1.8006179207427564 -1.05666 -24.4722 5 11 0 0.00 0.00 - no Open
599 3.4431675101061257 -0.887757 -22.4323 8 13 0 0.00 0.00 - no Open
611 4.478348342907414 -1.13978 -27.4314 7 9 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 -29.738kcal/mol
Ligand efficiency (LE) -1.1895kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.814
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 348.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.61
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 13.70kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 71.36kcal/mol
Minimised FF energy 57.66kcal/mol

SASA & burial

✓ computed
SASA (unbound) 566.5Ų
Total solvent-accessible surface area of free ligand
BSA total 483.7Ų
Buried surface area upon binding
BSA apolar 380.8Ų
Hydrophobic contacts buried
BSA polar 102.9Ų
Polar contacts buried
Fraction buried 85.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 78.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1587.5Ų
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 910.7Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)