FAIRMol

Z56784540

Pose ID 5317 Compound 3011 Pose 576

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T08
T. brucei PTR1 T. brucei
Ligand Z56784540
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
26.5 kcal/mol
Protein clashes
1
Internal clashes
2
Native overlap
contact recall 0.58, Jaccard 0.52, H-bond role recall 0.20
Burial
82%
Hydrophobic fit
90%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.936 kcal/mol/HA) ✓ Good fit quality (FQ -9.36) ✓ Deep burial (82% SASA buried) ✓ Lipophilic contacts well-matched (90%) ✗ High strain energy (26.5 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Many internal clashes (12)
Score
-31.820
kcal/mol
LE
-0.936
kcal/mol/HA
Fit Quality
-9.36
FQ (Leeson)
HAC
34
heavy atoms
MW
467
Da
LogP
5.71
cLogP
Strain ΔE
26.5 kcal/mol
SASA buried
82%
Lipo contact
90% BSA apolar/total
SASA unbound
769 Ų
Apolar buried
564 Ų

Interaction summary

HB 2 HY 24 PI 4 CLASH 2

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 rank0.635Score-31.820
Inter norm-0.987Intra norm0.051
Top1000noExcludedno
Contacts13H-bonds2
Artifact reasongeometry warning; 12 clashes; 2 protein contact clashes; 1 cofactor-context clash; moderate strain Δ 26.5
Residues
ARG14 ASP161 LEU208 LEU209 LYS13 NAP301 PHE171 PHE97 PRO210 PRO99 TYR174 TYR98 VAL211

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 overlap11Native recall0.58
Jaccard0.52RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.20

Protein summary

258 residues
Protein targetT08Atoms3881
Residues258Chains2
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
576 0.6352292789363421 -0.986887 -31.8198 2 13 11 0.58 0.20 - no Current
593 2.139321928797725 -0.590921 -17.8316 6 11 0 0.00 0.00 - no Open
579 2.680199327253876 -0.644737 -23.3603 6 11 0 0.00 0.00 - no Open
584 3.932188150368959 -0.99912 -33.0857 8 20 0 0.00 0.00 - no Open
591 4.5623805146338885 -0.885953 -28.347 16 15 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 -31.820kcal/mol
Ligand efficiency (LE) -0.9359kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.364
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 466.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 5.71
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 26.55kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 95.29kcal/mol
Minimised FF energy 68.75kcal/mol

SASA & burial

✓ computed
SASA (unbound) 768.7Ų
Total solvent-accessible surface area of free ligand
BSA total 629.9Ų
Buried surface area upon binding
BSA apolar 564.1Ų
Hydrophobic contacts buried
BSA polar 65.8Ų
Polar contacts buried
Fraction buried 81.9%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.5%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1760.4Ų
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 966.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)