FAIRMol

ulfkktlib_2441

Pose ID 12426 Compound 1889 Pose 225

DB SELECTIONDocking 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_2441
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
63.5 kcal/mol
Protein clashes
4
Internal clashes
5
Native overlap
contact recall 0.26, Jaccard 0.18, H-bond role recall 0.00
Burial
95%
Hydrophobic fit
64%
Reason: strain 63.5 kcal/mol
strain ΔE 63.5 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 (-1.231 kcal/mol/HA) ✓ Good fit quality (FQ -11.75) ✓ Strong H-bond network (12 bonds) ✓ Deep burial (95% SASA buried) ✓ Lipophilic contacts well-matched (64%) ✗ Extreme strain energy (63.5 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (12)
Score
-35.710
kcal/mol
LE
-1.231
kcal/mol/HA
Fit Quality
-11.75
FQ (Leeson)
HAC
29
heavy atoms
MW
394
Da
LogP
-0.01
cLogP
Strain ΔE
63.5 kcal/mol
SASA buried
95%
Lipo contact
64% BSA apolar/total
SASA unbound
635 Ų
Apolar buried
385 Ų

Interaction summary

HB 12 HY 13 PI 1 CLASH 5
Final rank5.207Score-35.710
Inter norm-1.218Intra norm-0.013
Top1000noExcludedno
Contacts18H-bonds12
Artifact reasongeometry warning; 12 clashes; 3 protein clashes; 1 cofactor-context clash; high strain Δ 63.5
Residues
ALA365 ASP327 CYS52 CYS57 GLU202 GLY56 ILE199 LEU334 LYS60 NDP800 PHE182 PHE203 PHE367 PRO336 SER178 SER364 THR335 THR51

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

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
Jaccard0.18RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

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

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
173 2.210069364865514 -0.906886 -22.615 1 11 0 0.00 0.00 - no Open
190 3.3652577851978607 -1.08992 -27.673 7 15 0 0.00 0.00 - no Open
146 5.039693898187579 -0.92551 -29.8109 14 13 0 0.00 0.00 - no Open
225 5.2070300796134505 -1.21818 -35.7099 12 18 7 0.26 0.00 - no Current

Molecular metrics

RDKit SASA burial, strain energy (MMFF94s), ligand efficiency and fit quality for this docking pose.
✓ Metrics available

Scoring & efficiency

Docking score -35.710kcal/mol
Ligand efficiency (LE) -1.2314kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -11.754
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 29HA

Physicochemical properties

Molecular weight 394.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) -0.01
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 63.52kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 208.69kcal/mol
Minimised FF energy 145.18kcal/mol

SASA & burial

✓ computed
SASA (unbound) 635.4Ų
Total solvent-accessible surface area of free ligand
BSA total 602.4Ų
Buried surface area upon binding
BSA apolar 385.3Ų
Hydrophobic contacts buried
BSA polar 217.1Ų
Polar contacts buried
Fraction buried 94.8%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 64.0%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2999.2Ų
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 1479.1Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)