FAIRMol

Z1741977993

Pose ID 4496 Compound 2907 Pose 433

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 Z1741977993
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
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
32.3 kcal/mol
Protein clashes
5
Internal clashes
6
Native overlap
contact recall 0.79, Jaccard 0.58, H-bond role recall 0.80
Burial
99%
Hydrophobic fit
89%
Reason: 6 internal clashes
5 protein-contact clashes 6 intramolecular clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>100 mg/L)
Algae IC₅₀
Not classified (>100 mg/L)
Bioaccum.
Not B (BCF≤2000)
Persistent
No
ADMET alerts (in-silico)
hERG Low Ames Clear DILI Low
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.989 kcal/mol/HA) ✓ Good fit quality (FQ -8.99) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (99% SASA buried) ✓ Lipophilic contacts well-matched (89%) ✗ Very high strain energy (32.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (10)
Score
-24.715
kcal/mol
LE
-0.989
kcal/mol/HA
Fit Quality
-8.99
FQ (Leeson)
HAC
25
heavy atoms
MW
342
Da
LogP
-0.76
cLogP
Final rank
2.4131
rank score
Inter norm
-1.220
normalised
Contacts
22
H-bonds 11
Strain ΔE
32.3 kcal/mol
SASA buried
99%
Lipo contact
89% BSA apolar/total
SASA unbound
610 Ų
Apolar buried
537 Ų

Interaction summary

HBD 8 HY 8 PI 2 CLASH 6

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. Residues: 5.

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: permissive.
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
Jaccard0.58RMSD-
HB strict5Strict recall0.83
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

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
433 2.413114424660548 -1.22 -24.7147 11 22 15 0.79 0.80 - 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 -24.715kcal/mol
Ligand efficiency (LE) -0.9886kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.987
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 25HA

Physicochemical properties

Molecular weight 342.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.76
Lipinski: ≤ 5
Rotatable bonds 10

Conformational strain (MMFF94s)

Strain energy (ΔE) 32.25kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 30.48kcal/mol
Minimised FF energy -1.77kcal/mol

SASA & burial

✓ computed
SASA (unbound) 609.9Ų
Total solvent-accessible surface area of free ligand
BSA total 603.5Ų
Buried surface area upon binding
BSA apolar 536.9Ų
Hydrophobic contacts buried
BSA polar 66.7Ų
Polar contacts buried
Fraction buried 99.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 89.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1679.0Ų
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 916.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)