FAIRMol

Z49719002

Pose ID 5284 Compound 1726 Pose 543

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 Z49719002
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
28.3 kcal/mol
Protein clashes
3
Internal clashes
2
Native overlap
contact recall 0.58, Jaccard 0.50, H-bond role recall 0.60
Burial
96%
Hydrophobic fit
71%
Reason: no major geometry red flags detected
3 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-1.851 kcal/mol/HA) ✓ Good fit quality (FQ -15.18) ✓ Strong H-bond network (12 bonds) ✓ Deep burial (96% SASA buried) ✓ Lipophilic contacts well-matched (71%) ✗ High strain energy (28.3 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Internal clashes (7)
Score
-35.179
kcal/mol
LE
-1.851
kcal/mol/HA
Fit Quality
-15.18
FQ (Leeson)
HAC
19
heavy atoms
MW
281
Da
LogP
1.69
cLogP
Strain ΔE
28.3 kcal/mol
SASA buried
96%
Lipo contact
71% BSA apolar/total
SASA unbound
487 Ų
Apolar buried
333 Ų

Interaction summary

HB 12 HY 20 PI 4 CLASH 2
Final rank-0.462Score-35.179
Inter norm-1.926Intra norm0.075
Top1000noExcludedno
Contacts14H-bonds12
Artifact reasongeometry warning; 7 clashes; 3 protein contact clashes; 2 severe cofactor-context clashes; moderate strain Δ 28.3
Residues
ARG14 ASN175 ASP161 CYS168 GLY205 LEU208 LYS178 MET163 NAP301 PHE171 PHE97 PRO167 SER95 TYR174

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
Jaccard0.50RMSD-
HB strict3Strict recall0.50
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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
536 -1.2117718742022974 -2.27302 -41.2505 13 13 10 0.53 0.60 - no Open
543 -0.4617272198664007 -1.92622 -35.1793 12 14 11 0.58 0.60 - no Current
553 0.7901052041183204 -1.64895 -25.0906 5 11 0 0.00 0.00 - no Open
574 1.9197835489469466 -1.27997 -22.0242 6 13 0 0.00 0.00 - no Open
539 2.834875949212269 -1.96567 -32.6489 13 12 0 0.00 0.00 - no Open
574 2.938359789590277 -1.13258 -19.6979 10 14 0 0.00 0.00 - no Open
542 3.36456591187264 -1.66906 -29.2551 16 16 0 0.00 0.00 - no Open
544 3.597282871221922 -1.55687 -25.5432 13 14 0 0.00 0.00 - no Open
546 3.9655058659124927 -1.52952 -21.6706 9 11 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 -35.179kcal/mol
Ligand efficiency (LE) -1.8515kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -15.177
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 19HA

Physicochemical properties

Molecular weight 280.7Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.69
Lipinski: ≤ 5
Rotatable bonds 6

Conformational strain (MMFF94s)

Strain energy (ΔE) 28.32kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 107.25kcal/mol
Minimised FF energy 78.93kcal/mol

SASA & burial

✓ computed
SASA (unbound) 487.4Ų
Total solvent-accessible surface area of free ligand
BSA total 470.4Ų
Buried surface area upon binding
BSA apolar 332.7Ų
Hydrophobic contacts buried
BSA polar 137.7Ų
Polar contacts buried
Fraction buried 96.5%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 70.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1462.8Ų
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 929.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)