FAIRMol

Z55668625

Pose ID 12778 Compound 4059 Pose 577

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T19
T. brucei TR (NADPH binding site) T. brucei NADPH binding site
Ligand Z55668625
PDB2WOV

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 mixed SASA done
Strain ΔE
56.3 kcal/mol
Protein clashes
4
Internal clashes
5
Native overlap
contact recall 0.33, Jaccard 0.21, H-bond role recall 0.00
Burial
95%
Hydrophobic fit
75%
Reason: strain 56.3 kcal/mol
strain ΔE 56.3 kcal/mol 4 protein-contact clashes 5 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.843 kcal/mol/HA) ✓ Good fit quality (FQ -8.37) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (75%) ✗ Extreme strain energy (56.3 kcal/mol) ✗ Geometry warnings ✗ Protein-contact clashes (5) ✗ Many internal clashes (15)
Score
-27.825
kcal/mol
LE
-0.843
kcal/mol/HA
Fit Quality
-8.37
FQ (Leeson)
HAC
33
heavy atoms
MW
489
Da
LogP
4.46
cLogP
Final rank
1.5790
rank score
Inter norm
-0.959
normalised
Contacts
24
H-bonds 5
Strain ΔE
56.3 kcal/mol
SASA buried
95%
Lipo contact
75% BSA apolar/total
SASA unbound
748 Ų
Apolar buried
530 Ų

Interaction summary

HBA 1 PC 1 HY 10 PI 2 CLASH 5

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 1.

PC · Polar contacts (possible, no H geometry)

HBD?/HBA? — heavy-atom distance only, H geometry unavailable. May be real H-bonds.

PI · π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

HY · Hydrophobic contacts

CLASH · Clashes

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name2WOVContacts27
PoseOpen native poseHB0
IFP residues
ALA284 ALA365 ARG222 ARG228 ARG287 ASN223 ASN254 GLN165 GLU202 GLY195 GLY196 GLY197 GLY286 ILE199 ILE285 LEU227 LEU334 LYS60 MET333 NDP800 PHE198 PHE367 PRO167 SER200 TYR221 VAL194 VAL366
Current overlap9Native recall0.33
Jaccard0.21RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

493 residues
Protein targetT19Atoms7541
Residues493Chains1
Residue summaryVAL:768; LYS:704; LEU:703; ILE:532; GLU:450; THR:434; ARG:408; PHE:400; ALA:390; ASN:350; PRO:350; GLY:336; SER:330; TYR:294; ASP:264; MET:221

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
C:NDP800

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
577 1.5790230036333115 -0.959463 -27.8254 5 24 9 0.33 0.00 - no Current
586 3.105226486580899 -0.581932 -15.8538 4 9 0 0.00 0.00 - no Open
590 4.72161139180752 -0.854819 -23.3658 9 20 0 0.00 0.00 - no Open
598 4.995951227667286 -0.966543 -31.2537 11 20 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 -27.825kcal/mol
Ligand efficiency (LE) -0.8432kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.366
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 488.9Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.46
Lipinski: ≤ 5
Rotatable bonds 8

Conformational strain (MMFF94s)

Strain energy (ΔE) 56.26kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 81.39kcal/mol
Minimised FF energy 25.12kcal/mol

SASA & burial

✓ computed
SASA (unbound) 747.6Ų
Total solvent-accessible surface area of free ligand
BSA total 708.2Ų
Buried surface area upon binding
BSA apolar 530.4Ų
Hydrophobic contacts buried
BSA polar 177.8Ų
Polar contacts buried
Fraction buried 94.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 74.9%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3141.5Ų
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 4064.7Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 1483.8Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)