FAIRMol

Z49558975

Pose ID 4707 Compound 1455 Pose 644

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 Z49558975
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
52.7 kcal/mol
Protein clashes
1
Internal clashes
4
Native overlap
contact recall 0.63, Jaccard 0.60, H-bond role recall 0.60
Burial
82%
Hydrophobic fit
69%
Reason: strain 52.7 kcal/mol
strain ΔE 52.7 kcal/mol 1 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.076 kcal/mol/HA) ✓ Good fit quality (FQ -9.91) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (69%) ✗ Extreme strain energy (52.7 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Internal clashes (6)
Score
-27.970
kcal/mol
LE
-1.076
kcal/mol/HA
Fit Quality
-9.91
FQ (Leeson)
HAC
26
heavy atoms
MW
354
Da
LogP
2.82
cLogP
Strain ΔE
52.7 kcal/mol
SASA buried
82%
Lipo contact
69% BSA apolar/total
SASA unbound
595 Ų
Apolar buried
337 Ų

Interaction summary

HB 10 HY 24 PI 4 CLASH 4
Final rank0.075Score-27.970
Inter norm-1.176Intra norm0.100
Top1000noExcludedno
Contacts13H-bonds10
Artifact reasongeometry warning; 6 clashes; 2 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 52.7
Residues
ARG14 ASP161 CYS168 GLU217 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 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 overlap12Native recall0.63
Jaccard0.60RMSD-
HB strict4Strict recall0.67
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
644 0.07467650484793296 -1.17551 -27.9704 10 13 12 0.63 0.60 - no Current
630 0.31605851962409415 -1.3698 -37.7576 13 12 10 0.53 0.60 - no Open
640 1.8840439934935043 -1.06732 -30.545 4 12 0 0.00 0.00 - no Open
627 1.901340798872262 -1.02422 -25.5677 8 16 0 0.00 0.00 - no Open
646 2.4604224930937084 -1.26732 -29.0037 10 16 0 0.00 0.00 - no Open
639 3.296573031191917 -1.29669 -29.6725 13 18 0 0.00 0.00 - no Open
642 3.3256697539250615 -0.924801 -16.978 8 10 0 0.00 0.00 - no Open
660 3.947674186548834 -1.35108 -30.6177 11 20 0 0.00 0.00 - no Open
649 4.311540670753228 -1.0456 -23.7588 12 16 0 0.00 0.00 - no Open
642 4.7302940548873185 -1.16836 -28.7896 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 -27.970kcal/mol
Ligand efficiency (LE) -1.0758kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.912
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 354.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.82
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 52.65kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 109.96kcal/mol
Minimised FF energy 57.30kcal/mol

SASA & burial

✓ computed
SASA (unbound) 595.0Ų
Total solvent-accessible surface area of free ligand
BSA total 491.1Ų
Buried surface area upon binding
BSA apolar 337.1Ų
Hydrophobic contacts buried
BSA polar 154.0Ų
Polar contacts buried
Fraction buried 82.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 68.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1565.3Ų
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 919.9Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)