FAIRMol

Z49604116

Pose ID 4410 Compound 666 Pose 347

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 Z49604116
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
44.1 kcal/mol
Protein clashes
2
Internal clashes
3
Native overlap
contact recall 0.79, Jaccard 0.68, H-bond role recall 0.60
Burial
81%
Hydrophobic fit
69%
Reason: strain 44.1 kcal/mol
strain ΔE 44.1 kcal/mol 2 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.324 kcal/mol/HA) ✓ Good fit quality (FQ -12.50) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (81% SASA buried) ✓ Lipophilic contacts well-matched (69%) ✗ Extreme strain energy (44.1 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Internal clashes (9)
Score
-37.067
kcal/mol
LE
-1.324
kcal/mol/HA
Fit Quality
-12.50
FQ (Leeson)
HAC
28
heavy atoms
MW
407
Da
LogP
2.17
cLogP
Strain ΔE
44.1 kcal/mol
SASA buried
81%
Lipo contact
69% BSA apolar/total
SASA unbound
662 Ų
Apolar buried
371 Ų

Interaction summary

HB 11 HY 24 PI 4 CLASH 3
Final rank0.572Score-37.067
Inter norm-1.252Intra norm-0.072
Top1000noExcludedno
Contacts18H-bonds11
Artifact reasongeometry warning; 9 clashes; 4 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 44.1
Residues
ARG14 ASP161 CYS168 GLU217 LEU208 LEU209 LYS178 LYS220 MET169 MET213 NAP301 PHE171 PHE97 PRO210 PRO99 SER95 TRP221 TYR174

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
Jaccard0.68RMSD-
HB strict3Strict recall0.50
HB same residue+role3HB role recall0.60
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
449 0.11150087522348105 -0.946596 -19.4906 5 19 0 0.00 0.00 - no Open
347 0.5722519427617813 -1.25157 -37.0671 11 18 15 0.79 0.60 - no Current
332 3.0831637024833767 -1.00866 -32.5527 9 10 0 0.00 0.00 - no Open
432 3.9640597332746412 -0.799965 -19.0924 7 14 0 0.00 0.00 - no Open
411 4.101860251337667 -1.10461 -32.7967 11 14 0 0.00 0.00 - no Open
393 4.338577277465298 -0.928563 -24.6787 6 19 0 0.00 0.00 - no Open
375 4.593979214038776 -0.9842 -26.6114 9 14 0 0.00 0.00 - no Open
360 4.946404916184476 -0.967244 -20.8301 10 17 0 0.00 0.00 - no Open
393 4.9811626547498475 -0.995794 -30.4779 16 16 0 0.00 0.00 - no Open
367 5.1394758644269976 -1.14157 -25.6203 16 23 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 -37.067kcal/mol
Ligand efficiency (LE) -1.3238kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.497
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 28HA

Physicochemical properties

Molecular weight 407.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.17
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 44.13kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 45.47kcal/mol
Minimised FF energy 1.33kcal/mol

SASA & burial

✓ computed
SASA (unbound) 662.4Ų
Total solvent-accessible surface area of free ligand
BSA total 539.3Ų
Buried surface area upon binding
BSA apolar 371.3Ų
Hydrophobic contacts buried
BSA polar 167.9Ų
Polar contacts buried
Fraction buried 81.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 68.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1606.2Ų
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 926.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)