FAIRMol

Z56040674

Pose ID 4671 Compound 2662 Pose 608

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 Z56040674
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Promising SASA cached
Promising and worth follow-up
Binding strong Geometry high Native strong SASA done
Strain ΔE
5.4 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.58, Jaccard 0.48, H-bond role recall 0.20
Burial
96%
Hydrophobic fit
91%
Reason: no major geometry red flags detected
2 protein-contact clashes
EcoTox / ADMET In-silico prediction only
Fish LC₅₀
Not classified (>100 mg/L)
Daphnia EC₅₀
Not classified (>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 ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Low conformational strain (5.4 kcal/mol) ✓ Excellent LE (-1.751 kcal/mol/HA) ✓ Good fit quality (FQ -14.04) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (91%) ✗ Geometry warnings ✗ Minor protein-contact clashes (2) ✗ Internal clashes (7)
Score
-31.522
kcal/mol
LE
-1.751
kcal/mol/HA
Fit Quality
-14.04
FQ (Leeson)
HAC
18
heavy atoms
MW
240
Da
LogP
2.24
cLogP
Final rank
-0.6427
rank score
Inter norm
-1.732
normalised
Contacts
15
H-bonds 4
Strain ΔE
5.4 kcal/mol
SASA buried
96%
Lipo contact
91% BSA apolar/total
SASA unbound
500 Ų
Apolar buried
434 Ų

Interaction summary

HBD 1 HY 6 PI 2 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: permissive. 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: 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 overlap11Native recall0.58
Jaccard0.48RMSD-
HB strict1Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.40

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
608 -0.642666717471951 -1.73192 -31.5222 4 15 11 0.58 0.20 - 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 -31.522kcal/mol
Ligand efficiency (LE) -1.7512kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -14.035
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 18HA

Physicochemical properties

Molecular weight 240.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.24
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 5.40kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 47.06kcal/mol
Minimised FF energy 41.66kcal/mol

SASA & burial

✓ computed
SASA (unbound) 499.6Ų
Total solvent-accessible surface area of free ligand
BSA total 478.1Ų
Buried surface area upon binding
BSA apolar 434.3Ų
Hydrophobic contacts buried
BSA polar 43.8Ų
Polar contacts buried
Fraction buried 95.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 90.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1572.5Ų
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 935.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)