FAIRMol

Z49549408

Pose ID 5125 Compound 303 Pose 384

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 Z49549408
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
28.6 kcal/mol
Protein clashes
1
Internal clashes
2
Native overlap
contact recall 0.47, Jaccard 0.41, H-bond role recall 0.80
Burial
95%
Hydrophobic fit
83%
Reason: no major geometry red flags detected
1 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Daphnia EC₅₀
Cat. 3 — Harmful (10–100 mg/L)
Algae IC₅₀
Cat. 3 — Harmful (10–100 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 (-1.518 kcal/mol/HA) ✓ Good fit quality (FQ -12.44) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ High strain energy (28.6 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (4) ✗ Internal clashes (6)
Score
-28.839
kcal/mol
LE
-1.518
kcal/mol/HA
Fit Quality
-12.44
FQ (Leeson)
HAC
19
heavy atoms
MW
279
Da
LogP
2.90
cLogP
Final rank
-0.4631
rank score
Inter norm
-1.796
normalised
Contacts
12
H-bonds 13
Strain ΔE
28.6 kcal/mol
SASA buried
95%
Lipo contact
83% BSA apolar/total
SASA unbound
498 Ų
Apolar buried
394 Ų

Interaction summary

HBD 5 HBA 1 HY 6 PI 4 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

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 overlap9Native recall0.47
Jaccard0.41RMSD-
HB strict4Strict recall0.67
HB same residue+role4HB role recall0.80
HB same residue4HB residue recall0.80

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
384 -0.4631075654822114 -1.79613 -28.8386 13 12 9 0.47 0.80 - no Current
349 -0.4044800159095025 -2.09147 -32.786 13 11 8 0.42 0.80 - no Open
462 1.9117986893836072 -1.36652 -20.6775 7 16 0 0.00 0.00 - no Open
434 2.784922075947008 -1.20883 -10.6357 9 14 0 0.00 0.00 - no Open
404 3.0222405991617607 -1.11219 -14.7248 10 13 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 -28.839kcal/mol
Ligand efficiency (LE) -1.5178kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.441
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 278.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.90
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.62kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 87.86kcal/mol
Minimised FF energy 59.24kcal/mol

SASA & burial

✓ computed
SASA (unbound) 498.2Ų
Total solvent-accessible surface area of free ligand
BSA total 475.1Ų
Buried surface area upon binding
BSA apolar 393.9Ų
Hydrophobic contacts buried
BSA polar 81.2Ų
Polar contacts buried
Fraction buried 95.4%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 82.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1531.2Ų
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 934.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)