FAIRMol

Z49610429

Pose ID 4577 Compound 2687 Pose 514

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 Z49610429
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
60.4 kcal/mol
Protein clashes
0
Internal clashes
9
Native overlap
contact recall 0.74, Jaccard 0.70, H-bond role recall 0.40
Burial
95%
Hydrophobic fit
65%
Reason: 9 internal clashes, strain 60.4 kcal/mol
strain ΔE 60.4 kcal/mol 9 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.234 kcal/mol/HA) ✓ Good fit quality (FQ -11.22) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (65%) ✗ Extreme strain energy (60.4 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-30.851
kcal/mol
LE
-1.234
kcal/mol/HA
Fit Quality
-11.22
FQ (Leeson)
HAC
25
heavy atoms
MW
366
Da
LogP
1.82
cLogP
Strain ΔE
60.4 kcal/mol
SASA buried
95%
Lipo contact
65% BSA apolar/total
SASA unbound
560 Ų
Apolar buried
345 Ų

Interaction summary

HB 6 HY 24 PI 3 CLASH 0
Final rank-0.143Score-30.851
Inter norm-1.234Intra norm0.000
Top1000noExcludedno
Contacts15H-bonds6
Artifact reasongeometry warning; 9 clashes; 1 severe cofactor-context clash; high strain Δ 60.4
Residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 MET163 MET213 NAP301 PHE171 PHE97 PRO210 TRP221 TYR174 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 overlap14Native recall0.74
Jaccard0.70RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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.

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
514 -0.1429926491005689 -1.23447 -30.8509 6 15 14 0.74 0.40 - no Current
534 2.822632311412465 -1.02181 -26.26 9 16 0 0.00 0.00 - no Open
531 3.29596653465704 -1.13052 -25.261 11 17 0 0.00 0.00 - no Open
562 3.7968333606254645 -0.839394 -20.5604 6 13 0 0.00 0.00 - no Open
526 3.868576881948521 -1.22455 -28.8284 10 12 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 -30.851kcal/mol
Ligand efficiency (LE) -1.2340kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.219
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 366.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.82
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 60.44kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 159.53kcal/mol
Minimised FF energy 99.09kcal/mol

SASA & burial

✓ computed
SASA (unbound) 560.1Ų
Total solvent-accessible surface area of free ligand
BSA total 531.0Ų
Buried surface area upon binding
BSA apolar 344.6Ų
Hydrophobic contacts buried
BSA polar 186.4Ų
Polar contacts buried
Fraction buried 94.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1505.9Ų
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 909.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)