FAIRMol

ulfkktlib_1922

Pose ID 12402 Compound 5187 Pose 201

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 ulfkktlib_1922
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
63.0 kcal/mol
Protein clashes
2
Internal clashes
2
Native overlap
contact recall 0.26, Jaccard 0.17, H-bond role recall 0.20
Burial
91%
Hydrophobic fit
66%
Reason: strain 63.0 kcal/mol
strain ΔE 63.0 kcal/mol 2 protein-contact clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.943 kcal/mol/HA) ✓ Good fit quality (FQ -9.44) ✓ Strong H-bond network (9 bonds) ✓ Deep burial (91% SASA buried) ✓ Lipophilic contacts well-matched (66%) ✗ Extreme strain energy (63.0 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (20)
Score
-32.061
kcal/mol
LE
-0.943
kcal/mol/HA
Fit Quality
-9.44
FQ (Leeson)
HAC
34
heavy atoms
MW
462
Da
LogP
2.78
cLogP
Strain ΔE
63.0 kcal/mol
SASA buried
91%
Lipo contact
66% BSA apolar/total
SASA unbound
737 Ų
Apolar buried
445 Ų

Interaction summary

HB 9 HY 24 PI 1 CLASH 2

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 rank5.405Score-32.061
Inter norm-1.055Intra norm0.112
Top1000noExcludedno
Contacts20H-bonds9
Artifact reasongeometry warning; 20 clashes; 3 protein clashes; 1 cofactor-context clash; high strain Δ 63.0
Residues
ALA338 ALA365 ASP327 CYS57 GLY56 ILE199 LEU334 LYS60 MET333 NDP800 PHE182 PHE203 PHE367 PRO336 PRO435 SER178 SER364 THR335 THR51 VAL55

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 overlap7Native recall0.26
Jaccard0.17RMSD-
HB strict1Strict recall0.08
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
201 5.405271060933725 -1.05462 -32.0613 9 20 7 0.26 0.20 - no Current
217 5.569161518042272 -1.06313 -32.2978 10 20 7 0.26 0.20 - 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 -32.061kcal/mol
Ligand efficiency (LE) -0.9430kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -9.435
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 462.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.78
Lipinski: ≤ 5
Rotatable bonds 5

Conformational strain (MMFF94s)

Strain energy (ΔE) 62.98kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 140.17kcal/mol
Minimised FF energy 77.19kcal/mol

SASA & burial

✓ computed
SASA (unbound) 736.9Ų
Total solvent-accessible surface area of free ligand
BSA total 670.5Ų
Buried surface area upon binding
BSA apolar 444.8Ų
Hydrophobic contacts buried
BSA polar 225.7Ų
Polar contacts buried
Fraction buried 91.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 66.3%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -3098.2Ų
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 1476.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)