FAIRMol

Z49613286

Pose ID 4663 Compound 1321 Pose 600

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 Z49613286
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 strong SASA done
Strain ΔE
46.8 kcal/mol
Protein clashes
5
Internal clashes
6
Native overlap
contact recall 0.79, Jaccard 0.62, H-bond role recall 0.80
Burial
98%
Hydrophobic fit
63%
Reason: 6 internal clashes, strain 46.8 kcal/mol
strain ΔE 46.8 kcal/mol 5 protein-contact clashes 6 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.284 kcal/mol/HA) ✓ Good fit quality (FQ -11.82) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (98% SASA buried) ✓ Lipophilic contacts well-matched (63%) ✗ Extreme strain energy (46.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-33.371
kcal/mol
LE
-1.284
kcal/mol/HA
Fit Quality
-11.82
FQ (Leeson)
HAC
26
heavy atoms
MW
358
Da
LogP
0.95
cLogP
Strain ΔE
46.8 kcal/mol
SASA buried
98%
Lipo contact
63% BSA apolar/total
SASA unbound
586 Ų
Apolar buried
361 Ų

Interaction summary

HB 10 HY 24 PI 2 CLASH 6

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

Final rank2.129Score-33.371
Inter norm-1.528Intra norm0.245
Top1000noExcludedno
Contacts20H-bonds10
Artifact reasongeometry warning; 10 clashes; 1 protein clash; 1 severe cofactor-context clash; high strain Δ 46.8
Residues
ARG14 ASN175 ASP161 CYS168 GLN166 LEU208 LEU209 LYS178 MET163 MET213 NAP301 PHE171 PHE97 PRO167 PRO210 SER95 TRP221 TYR174 VAL164 VAL206

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
Jaccard0.62RMSD-
HB strict5Strict recall0.83
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

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
615 1.9814526955982046 -0.81173 -22.1082 8 14 0 0.00 0.00 - no Open
593 2.1246165125633567 -1.45629 -41.4862 14 11 8 0.42 0.40 - no Open
600 2.129495667847415 -1.52839 -33.3711 10 20 15 0.79 0.80 - no Current
610 2.3040923937170814 -0.959116 -25.444 4 12 0 0.00 0.00 - no Open
609 2.662306438978959 -1.09542 -25.9422 8 15 0 0.00 0.00 - no Open
604 3.5954968466101134 -1.23305 -28.772 12 19 0 0.00 0.00 - no Open
624 3.6470603085999342 -1.05347 -34.1919 9 16 0 0.00 0.00 - no Open
622 3.9687442161044406 -0.993806 -26.7144 9 14 0 0.00 0.00 - no Open
614 5.561407115049735 -1.25648 -39.0428 16 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 -33.371kcal/mol
Ligand efficiency (LE) -1.2835kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.825
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 358.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 0.95
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 46.77kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 205.37kcal/mol
Minimised FF energy 158.61kcal/mol

SASA & burial

✓ computed
SASA (unbound) 585.8Ų
Total solvent-accessible surface area of free ligand
BSA total 573.8Ų
Buried surface area upon binding
BSA apolar 360.8Ų
Hydrophobic contacts buried
BSA polar 212.9Ų
Polar contacts buried
Fraction buried 97.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 62.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1498.1Ų
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 921.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)