FAIRMol

Z44305068

Pose ID 4625 Compound 2939 Pose 562

DB SELECTIONDocking 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 Z44305068
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 but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
18.5 kcal/mol
Protein clashes
9
Internal clashes
10
Native overlap
contact recall 0.74, Jaccard 0.58, H-bond role recall 0.20
Burial
99%
Hydrophobic fit
74%
Reason: 9 protein-contact clashes, 10 internal clashes
9 protein-contact clashes 10 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.121 kcal/mol/HA) ✓ Good fit quality (FQ -10.46) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (99% SASA buried) ✓ Lipophilic contacts well-matched (74%) ✗ Moderate strain (18.5 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (7)
Score
-30.258
kcal/mol
LE
-1.121
kcal/mol/HA
Fit Quality
-10.46
FQ (Leeson)
HAC
27
heavy atoms
MW
401
Da
LogP
3.74
cLogP
Strain ΔE
18.5 kcal/mol
SASA buried
99%
Lipo contact
74% BSA apolar/total
SASA unbound
604 Ų
Apolar buried
445 Ų

Interaction summary

HB 9 HY 24 PI 4 CLASH 10

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 rank3.939Score-30.258
Inter norm-1.126Intra norm0.006
Top1000noExcludedno
Contacts19H-bonds9
Artifact reasongeometry warning; 7 clashes; 2 protein clashes; 1 cofactor-context clash
Residues
ARG14 ASN175 ASP161 CYS168 GLN166 GLY205 LEU208 LEU209 MET163 NAP301 PHE171 PHE97 PRO167 PRO210 SER95 TRP221 TYR174 VAL164 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 overlap14Native recall0.74
Jaccard0.58RMSD-
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
569 0.36532912233574083 -1.30221 -32.7212 7 19 14 0.74 0.20 - no Open
569 2.3737859879803827 -0.913048 -17.8893 7 13 0 0.00 0.00 - no Open
589 2.791741137083932 -1.08787 -23.2147 6 17 0 0.00 0.00 - no Open
599 3.8312358695408832 -0.914807 -24.99 8 17 0 0.00 0.00 - no Open
562 3.9390179097197437 -1.12619 -30.2577 9 19 14 0.74 0.20 - no Current
598 4.131557866139451 -0.953971 -23.907 11 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 -30.258kcal/mol
Ligand efficiency (LE) -1.1207kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.455
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 400.8Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.74
Lipinski: ≤ 5
Rotatable bonds 4

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.49kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -54.57kcal/mol
Minimised FF energy -73.05kcal/mol

SASA & burial

✓ computed
SASA (unbound) 603.8Ų
Total solvent-accessible surface area of free ligand
BSA total 598.7Ų
Buried surface area upon binding
BSA apolar 445.0Ų
Hydrophobic contacts buried
BSA polar 153.7Ų
Polar contacts buried
Fraction buried 99.2%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1580.4Ų
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 921.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)