FAIRMol

Z19459210

Pose ID 5126 Compound 944 Pose 385

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T08
T. brucei PTR1 T. brucei
Ligand Z19459210
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
Likely artefact or unreliable pose
Binding strong Geometry medium Native strong SASA done
Strain ΔE
30.4 kcal/mol
Protein clashes
5
Internal clashes
2
Native overlap
contact recall 0.68, Jaccard 0.54, H-bond role recall 0.20
Burial
88%
Hydrophobic fit
65%
Reason: no major geometry red flags detected
5 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.848 kcal/mol/HA) ✓ Good fit quality (FQ -8.34) ✓ Strong H-bond network (7 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (65%) ✗ Very high strain energy (30.4 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (11)
Score
-27.126
kcal/mol
LE
-0.848
kcal/mol/HA
Fit Quality
-8.34
FQ (Leeson)
HAC
32
heavy atoms
MW
458
Da
LogP
3.57
cLogP
Strain ΔE
30.4 kcal/mol
SASA buried
88%
Lipo contact
65% BSA apolar/total
SASA unbound
718 Ų
Apolar buried
411 Ų

Interaction summary

HB 7 HY 23 PI 3 CLASH 2

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 rank1.073Score-27.126
Inter norm-0.998Intra norm0.150
Top1000noExcludedno
Contacts18H-bonds7
Artifact reasongeometry warning; 11 clashes; 5 protein contact clashes; 3 cofactor-context clashes; high strain Δ 30.1
Residues
ALA96 ARG14 ASP161 CYS168 GLY205 LEU209 LEU263 LYS13 MET163 NAP301 PHE97 PRO210 SER207 TRP221 TYR174 TYR98 VAL206 VAL211

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 overlap13Native recall0.68
Jaccard0.54RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.40

Protein summary

258 residues
Protein targetT08Atoms3881
Residues258Chains2
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
353 0.2677846330097941 -1.07537 -27.8222 8 17 14 0.74 0.40 - no Open
385 1.072504017808142 -0.997956 -27.1257 7 18 13 0.68 0.20 - no Current
335 1.9579738510770275 -1.01092 -28.7026 6 22 0 0.00 0.00 - no Open
382 2.0108526982107993 -0.822339 -20.3127 6 13 0 0.00 0.00 - no Open
380 2.3895493898087743 -0.733724 -19.5103 13 14 0 0.00 0.00 - no Open
451 2.500575774493837 -0.801352 -19.5984 4 18 0 0.00 0.00 - no Open
365 2.585210403258686 -0.744596 -11.1465 9 20 0 0.00 0.00 - no Open
397 3.1112027661132537 -0.667648 -14.8384 8 10 0 0.00 0.00 - no Open
398 3.193158610637237 -0.881209 -19.5521 15 18 0 0.00 0.00 - no Open
436 3.954326897652338 -0.726205 -12.1702 7 19 0 0.00 0.00 - no Open
337 4.153204340630617 -0.904158 -19.2488 9 13 0 0.00 0.00 - no Open
346 5.166667667365341 -0.742034 -19.6346 11 13 0 0.00 0.00 - no Open
361 5.606440624303128 -1.02946 -25.164 13 16 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 -27.126kcal/mol
Ligand efficiency (LE) -0.8477kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.336
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 458.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.57
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 30.45kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 106.18kcal/mol
Minimised FF energy 75.73kcal/mol

SASA & burial

✓ computed
SASA (unbound) 718.4Ų
Total solvent-accessible surface area of free ligand
BSA total 634.9Ų
Buried surface area upon binding
BSA apolar 410.6Ų
Hydrophobic contacts buried
BSA polar 224.3Ų
Polar contacts buried
Fraction buried 88.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1573.8Ų
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 933.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)