FAIRMol

Z45635483

Pose ID 5382 Compound 2247 Pose 641

DB SELECTIONDocking 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 Z45635483
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
21.6 kcal/mol
Protein clashes
5
Internal clashes
7
Native overlap
contact recall 0.58, Jaccard 0.52, H-bond role recall 0.40
Burial
88%
Hydrophobic fit
73%
Reason: 7 internal clashes
5 protein-contact clashes 7 intramolecular clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.171 kcal/mol/HA) ✓ Good fit quality (FQ -10.50) ✓ Strong H-bond network (8 bonds) ✓ Deep burial (88% SASA buried) ✓ Lipophilic contacts well-matched (73%) ✗ High strain energy (21.6 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (9) ✗ Internal clashes (7)
Score
-28.117
kcal/mol
LE
-1.171
kcal/mol/HA
Fit Quality
-10.50
FQ (Leeson)
HAC
24
heavy atoms
MW
368
Da
LogP
2.43
cLogP
Strain ΔE
21.6 kcal/mol
SASA buried
88%
Lipo contact
73% BSA apolar/total
SASA unbound
608 Ų
Apolar buried
392 Ų

Interaction summary

HB 8 HY 22 PI 3 CLASH 7
Final rank0.996Score-28.117
Inter norm-1.324Intra norm0.152
Top1000noExcludedno
Contacts13H-bonds8
Artifact reasongeometry warning; 7 clashes; 9 protein contact clashes; 1 severe cofactor-context clash; moderate strain Δ 21.6
Residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 LYS13 NAP301 PHE97 PRO210 SER95 TYR174 VAL211

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

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 overlap11Native recall0.58
Jaccard0.52RMSD-
HB strict3Strict recall0.50
HB same residue+role2HB role recall0.40
HB same residue2HB residue recall0.40

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
641 0.996170229026272 -1.32395 -28.1168 8 13 11 0.58 0.40 - no Current
635 1.5521669381048986 -1.09042 -23.7226 6 14 0 0.00 0.00 - no Open
647 2.5350330653132933 -1.18347 -26.7149 11 17 0 0.00 0.00 - no Open
662 2.5760465111665063 -1.18521 -25.9775 10 16 0 0.00 0.00 - no Open
643 2.859482682481522 -0.983196 -22.5121 9 13 0 0.00 0.00 - no Open
653 2.912148041490271 -1.31011 -29.0433 12 20 0 0.00 0.00 - no Open
651 3.165601413469841 -0.982393 -21.7643 6 10 0 0.00 0.00 - no Open
653 3.221699438426105 -1.16465 -25.7672 9 15 0 0.00 0.00 - no Open
658 5.142005379099134 -1.15028 -26.4406 13 16 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 -28.117kcal/mol
Ligand efficiency (LE) -1.1715kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -10.499
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 24HA

Physicochemical properties

Molecular weight 368.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.43
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 21.61kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -107.29kcal/mol
Minimised FF energy -128.89kcal/mol

SASA & burial

✓ computed
SASA (unbound) 608.3Ų
Total solvent-accessible surface area of free ligand
BSA total 535.9Ų
Buried surface area upon binding
BSA apolar 391.6Ų
Hydrophobic contacts buried
BSA polar 144.3Ų
Polar contacts buried
Fraction buried 88.1%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 73.1%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1564.7Ų
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 922.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)