FAIRMol

Z49633576

Pose ID 5333 Compound 992 Pose 592

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 Z49633576
PDB6RX6

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Reject SASA cached
Promising but geometrically suspicious
Binding strong Geometry low Native strong SASA done
Strain ΔE
70.4 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.84, Jaccard 0.80, H-bond role recall 0.60
Burial
95%
Hydrophobic fit
60%
Reason: strain 70.4 kcal/mol
strain ΔE 70.4 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.184 kcal/mol/HA) ✓ Good fit quality (FQ -11.42) ✓ Strong H-bond network (11 bonds) ✓ Deep burial (95% SASA buried) ✗ Extreme strain energy (70.4 kcal/mol) ✗ Geometry warnings ✗ Minor protein-contact clashes (3) ✗ Many internal clashes (16)
Score
-35.512
kcal/mol
LE
-1.184
kcal/mol/HA
Fit Quality
-11.42
FQ (Leeson)
HAC
30
heavy atoms
MW
439
Da
LogP
1.07
cLogP
Strain ΔE
70.4 kcal/mol
SASA buried
95%
Lipo contact
60% BSA apolar/total
SASA unbound
601 Ų
Apolar buried
339 Ų

Interaction summary

HB 11 HY 24 PI 3 CLASH 1

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 rank1.088Score-35.512
Inter norm-1.216Intra norm0.033
Top1000noExcludedno
Contacts17H-bonds11
Artifact reasongeometry warning; 16 clashes; 3 protein contact clashes; 2 severe cofactor-context clashes; high strain Δ 70.4
Residues
ARG14 ASP161 CYS168 GLY205 LEU208 LEU209 MET163 MET213 NAP301 PHE171 PHE97 PRO210 SER207 SER95 TRP221 TYR174 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 overlap16Native recall0.84
Jaccard0.80RMSD-
HB strict3Strict recall0.50
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.60

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
592 1.088467834021099 -1.21638 -35.5119 11 17 16 0.84 0.60 - no Current
591 1.279920394623608 -0.958585 -27.9306 8 14 0 0.00 0.00 - no Open
614 2.169494058727323 -0.722846 -19.1394 4 9 0 0.00 0.00 - no Open
614 2.3485621669480374 -0.756077 -21.8538 8 17 0 0.00 0.00 - no Open
608 2.3978756382173834 -0.914409 -20.3444 11 15 0 0.00 0.00 - no Open
607 2.7193451061352016 -1.01606 -22.4387 11 12 0 0.00 0.00 - no Open
599 3.151702278102694 -0.858251 -17.4184 6 18 0 0.00 0.00 - no Open
605 4.43482713094104 -1.22494 -33.3039 11 22 0 0.00 0.00 - no Open
602 4.713471072673453 -1.10206 -23.637 16 19 0 0.00 0.00 - no Open
613 5.4625540130581856 -1.04999 -29.3846 12 17 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 -35.512kcal/mol
Ligand efficiency (LE) -1.1837kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.419
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 30HA

Physicochemical properties

Molecular weight 439.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.07
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 70.44kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 102.15kcal/mol
Minimised FF energy 31.71kcal/mol

SASA & burial

✓ computed
SASA (unbound) 601.0Ų
Total solvent-accessible surface area of free ligand
BSA total 568.7Ų
Buried surface area upon binding
BSA apolar 339.3Ų
Hydrophobic contacts buried
BSA polar 229.4Ų
Polar contacts buried
Fraction buried 94.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 59.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1502.6Ų
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 905.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)