FAIRMol

Z31216107

Pose ID 4617 Compound 1614 Pose 554

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 Z31216107
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 mixed SASA done
Strain ΔE
14.8 kcal/mol
Protein clashes
0
Internal clashes
9
Native overlap
contact recall 0.37, Jaccard 0.30, H-bond role recall 0.40
Burial
97%
Hydrophobic fit
95%
Reason: 9 internal clashes
9 intramolecular clashes
Molecular report
Full metrics ↗
Promising Reasonable quality metrics. Warrants further investigation.
✓ Excellent LE (-1.599 kcal/mol/HA) ✓ Good fit quality (FQ -12.81) ✓ Good H-bonds (4 bonds) ✓ Deep burial (97% SASA buried) ✓ Lipophilic contacts well-matched (95%) ✗ Moderate strain (14.8 kcal/mol) ✗ Geometry warnings ✗ Internal clashes (9)
Score
-28.773
kcal/mol
LE
-1.599
kcal/mol/HA
Fit Quality
-12.81
FQ (Leeson)
HAC
18
heavy atoms
MW
236
Da
LogP
2.66
cLogP
Strain ΔE
14.8 kcal/mol
SASA buried
97%
Lipo contact
95% BSA apolar/total
SASA unbound
485 Ų
Apolar buried
444 Ų

Interaction summary

HB 4 HY 24 PI 3 CLASH 0

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

No clash · clashes detected for this pose.
Final rank1.150Score-28.773
Inter norm-1.708Intra norm0.110
Top1000noExcludedno
Contacts11H-bonds4
Artifact reasongeometry warning; 9 clashes; 1 protein clash
Residues
ARG14 ASN175 ASP161 CYS168 MET163 NAP301 PHE171 PHE97 PRO167 TYR174 VAL164

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 overlap7Native recall0.37
Jaccard0.30RMSD-
HB strict2Strict recall0.33
HB same residue+role2HB role recall0.40
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
573 0.1545060274361152 -1.33019 -18.9049 1 11 0 0.00 0.00 - no Open
554 1.1504900317388358 -1.70841 -28.7729 4 11 7 0.37 0.40 - 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 -28.773kcal/mol
Ligand efficiency (LE) -1.5985kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -12.811
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 18HA

Physicochemical properties

Molecular weight 236.3Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.66
Lipinski: ≤ 5
Rotatable bonds 3

Conformational strain (MMFF94s)

Strain energy (ΔE) 14.77kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 60.83kcal/mol
Minimised FF energy 46.06kcal/mol

SASA & burial

✓ computed
SASA (unbound) 484.6Ų
Total solvent-accessible surface area of free ligand
BSA total 467.9Ų
Buried surface area upon binding
BSA apolar 444.4Ų
Hydrophobic contacts buried
BSA polar 23.5Ų
Polar contacts buried
Fraction buried 96.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 95.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1583.7Ų
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 929.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)