FAIRMol

Z49620451

Pose ID 5187 Compound 3108 Pose 446

DB fairmolDocking 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 Z49620451
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
41.0 kcal/mol
Protein clashes
8
Internal clashes
9
Native overlap
contact recall 0.68, Jaccard 0.54, H-bond role recall 0.60
Burial
99%
Hydrophobic fit
80%
Reason: 9 internal clashes
8 protein-contact clashes 9 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.244 kcal/mol/HA) ✓ Good fit quality (FQ -11.60) ✓ Strong H-bond network (13 bonds) ✓ Deep burial (99% SASA buried) ✓ Lipophilic contacts well-matched (80%) ✗ Extreme strain energy (41.0 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (9) ✗ Many internal clashes (15)
Score
-33.575
kcal/mol
LE
-1.244
kcal/mol/HA
Fit Quality
-11.60
FQ (Leeson)
HAC
27
heavy atoms
MW
360
Da
LogP
3.51
cLogP
Strain ΔE
41.0 kcal/mol
SASA buried
99%
Lipo contact
80% BSA apolar/total
SASA unbound
602 Ų
Apolar buried
477 Ų

Interaction summary

HB 13 HY 24 PI 3 CLASH 9

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 rank1.905Score-33.575
Inter norm-1.273Intra norm0.030
Top1000noExcludedno
Contacts18H-bonds13
Artifact reasongeometry warning; 15 clashes; 9 protein contact clashes; 2 severe cofactor-context clashes; high strain Δ 41.0
Residues
ARG14 ASN175 ASP161 CYS168 GLN166 GLY205 LEU209 MET163 NAP301 PHE171 PHE97 PRO167 SER207 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 overlap13Native recall0.68
Jaccard0.54RMSD-
HB strict4Strict recall0.67
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
446 1.9053133468203727 -1.27344 -33.5749 13 18 13 0.68 0.60 - no Current
425 4.559732283636909 -0.975435 -22.7906 10 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 -33.575kcal/mol
Ligand efficiency (LE) -1.2435kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.602
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 27HA

Physicochemical properties

Molecular weight 360.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 3.51
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 41.02kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 132.43kcal/mol
Minimised FF energy 91.42kcal/mol

SASA & burial

✓ computed
SASA (unbound) 601.6Ų
Total solvent-accessible surface area of free ligand
BSA total 593.3Ų
Buried surface area upon binding
BSA apolar 476.6Ų
Hydrophobic contacts buried
BSA polar 116.7Ų
Polar contacts buried
Fraction buried 98.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 80.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -1613.6Ų
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 920.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)