FAIRMol

Z28654383

Pose ID 12548 Compound 497 Pose 347

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 Z28654383
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
43.2 kcal/mol
Protein clashes
1
Internal clashes
2
Native overlap
contact recall 0.33, Jaccard 0.23, H-bond role recall 0.20
Burial
94%
Hydrophobic fit
82%
Reason: strain 43.2 kcal/mol
strain ΔE 43.2 kcal/mol 1 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-1.149 kcal/mol/HA) ✓ Good fit quality (FQ -11.29) ✓ Good H-bonds (3 bonds) ✓ Deep burial (94% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ Extreme strain energy (43.2 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (11)
Score
-36.752
kcal/mol
LE
-1.149
kcal/mol/HA
Fit Quality
-11.29
FQ (Leeson)
HAC
32
heavy atoms
MW
507
Da
LogP
6.08
cLogP
Final rank
2.9211
rank score
Inter norm
-1.003
normalised
Contacts
22
H-bonds 6
Strain ΔE
43.2 kcal/mol
SASA buried
94%
Lipo contact
82% BSA apolar/total
SASA unbound
731 Ų
Apolar buried
558 Ų

Interaction summary

HBA 3 PC 1 HY 8 PI 1 CLASH 2

HBD/HBA · H-bonds (geometric)

HBD = ligand donates H · HBA = ligand accepts H · ~ = weak (≥110°). Mode: strict. Residues: 2.

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
Jaccard0.23RMSD-
HB strict2Strict recall0.17
HB same residue+role1HB role recall0.20
HB same residue1HB residue recall0.25

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
395 2.0476526138597184 -0.692476 -26.6323 7 18 0 0.00 0.00 - no Open
424 2.5788501676058075 -0.867463 -23.2831 3 13 0 0.00 0.00 - no Open
471 2.817505272993306 -0.881199 -31.297 4 17 0 0.00 0.00 - no Open
347 2.9210948625874136 -1.00306 -36.752 6 22 9 0.33 0.20 - no Current
405 3.8775466064868525 -0.584181 -18.6285 3 13 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 -36.752kcal/mol
Ligand efficiency (LE) -1.1485kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.294
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 507.5Da
Lipinski: ≤ 500 Da
LogP (cLogP) 6.08
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 43.21kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy -0.27kcal/mol
Minimised FF energy -43.47kcal/mol

SASA & burial

✓ computed
SASA (unbound) 731.0Ų
Total solvent-accessible surface area of free ligand
BSA total 684.2Ų
Buried surface area upon binding
BSA apolar 558.4Ų
Hydrophobic contacts buried
BSA polar 125.7Ų
Polar contacts buried
Fraction buried 93.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3178.9Ų
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 1476.3Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)