FAIRMol

Z56900576

Pose ID 4490 Compound 2699 Pose 427

DB fairmolDocking 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 Z56900576
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
41.7 kcal/mol
Protein clashes
2
Internal clashes
4
Native overlap
contact recall 0.79, Jaccard 0.79, H-bond role recall 0.60
Burial
86%
Hydrophobic fit
73%
Reason: no major geometry red flags detected
2 protein-contact clashes 4 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.322 kcal/mol/HA) ✓ Good fit quality (FQ -12.02) ✓ Strong H-bond network (10 bonds) ✓ Deep burial (86% SASA buried) ✓ Lipophilic contacts well-matched (73%) ✗ Extreme strain energy (41.7 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Internal clashes (6)
Score
-33.045
kcal/mol
LE
-1.322
kcal/mol/HA
Fit Quality
-12.02
FQ (Leeson)
HAC
25
heavy atoms
MW
357
Da
LogP
2.90
cLogP
Strain ΔE
41.7 kcal/mol
SASA buried
86%
Lipo contact
73% BSA apolar/total
SASA unbound
583 Ų
Apolar buried
364 Ų

Interaction summary

HB 10 HY 24 PI 3 CLASH 4

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 rank-0.028Score-33.045
Inter norm-1.376Intra norm0.054
Top1000noExcludedno
Contacts15H-bonds10
Artifact reasongeometry warning; 6 clashes; 3 protein contact clashes; 1 severe cofactor-context clash; high strain Δ 41.7
Residues
ARG14 ASP161 LEU208 LEU209 LYS178 MET213 NAP301 PHE171 PHE97 PRO210 SER207 SER95 TRP221 TYR174 VAL206

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
Jaccard0.79RMSD-
HB strict3Strict recall0.50
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
427 -0.02823959978919552 -1.37557 -33.0446 10 15 15 0.79 0.60 - no Current
437 3.4576121938663253 -0.993154 -24.7834 11 14 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 -33.045kcal/mol
Ligand efficiency (LE) -1.3218kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.016
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 357.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.90
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.67kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 101.52kcal/mol
Minimised FF energy 59.85kcal/mol

SASA & burial

✓ computed
SASA (unbound) 582.6Ų
Total solvent-accessible surface area of free ligand
BSA total 499.6Ų
Buried surface area upon binding
BSA apolar 363.6Ų
Hydrophobic contacts buried
BSA polar 136.0Ų
Polar contacts buried
Fraction buried 85.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 72.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1568.4Ų
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 917.0Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)