FAIRMol

Z57159620

Pose ID 4543 Compound 2476 Pose 480

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 Z57159620
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
20.3 kcal/mol
Protein clashes
4
Internal clashes
4
Native overlap
contact recall 0.74, Jaccard 0.64, H-bond role recall 0.60
Burial
97%
Hydrophobic fit
98%
Reason: no major geometry red flags detected
4 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.066 kcal/mol/HA) ✓ Good fit quality (FQ -9.82) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (98%) ✗ High strain energy (20.3 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (14)
Score
-27.711
kcal/mol
LE
-1.066
kcal/mol/HA
Fit Quality
-9.82
FQ (Leeson)
HAC
26
heavy atoms
MW
345
Da
LogP
4.54
cLogP
Final rank
1.2011
rank score
Inter norm
-1.218
normalised
Contacts
17
H-bonds 3
Strain ΔE
20.3 kcal/mol
SASA buried
97%
Lipo contact
98% BSA apolar/total
SASA unbound
595 Ų
Apolar buried
565 Ų

Interaction summary

HBD 1 HY 9 PI 6 CLASH 4

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

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
Jaccard0.64RMSD-
HB strict2Strict recall0.33
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
501 0.7428377001523537 -1.22092 -22.1565 8 14 12 0.63 0.40 - no Open
491 0.9775848548174668 -0.88735 -18.8895 1 17 0 0.00 0.00 - no Open
480 1.2010849974111082 -1.21817 -27.7111 3 17 14 0.74 0.60 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -27.711kcal/mol
Ligand efficiency (LE) -1.0658kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.820
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 26HA

Physicochemical properties

Molecular weight 345.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.54
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 20.26kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -18.19kcal/mol
Minimised FF energy -38.45kcal/mol

SASA & burial

✓ computed
SASA (unbound) 595.3Ų
Total solvent-accessible surface area of free ligand
BSA total 575.0Ų
Buried surface area upon binding
BSA apolar 564.6Ų
Hydrophobic contacts buried
BSA polar 10.4Ų
Polar contacts buried
Fraction buried 96.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 98.2%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1725.2Ų
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 911.6Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)