FAIRMol

ulfkktlib_1924

Pose ID 11073 Compound 3117 Pose 230

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T17
T. brucei TR (Doorstop site) T. brucei Doorstop site
Ligand ulfkktlib_1924
PDB5S9T

3D complex viewer

Strict H-bonds Permissive H-bonds
Viewer legend
Protein receptor
Pocket residues
Cofactor context
Docked ligand
Overall assessment
Weak SASA cached
Weak or marginal quality
Binding strong Geometry high Native strong SASA done
Strain ΔE
19.8 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.75, Jaccard 0.41, H-bond role recall 0.00
Burial
75%
Hydrophobic fit
82%
Reason: no major geometry red flags detected
1 protein-contact clashes
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.819 kcal/mol/HA) ✓ Good fit quality (FQ -8.19) ✓ Good H-bonds (4 bonds) ✓ Deep burial (75% SASA buried) ✓ Lipophilic contacts well-matched (82%) ✗ Moderate strain (19.8 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (19)
Score
-27.844
kcal/mol
LE
-0.819
kcal/mol/HA
Fit Quality
-8.19
FQ (Leeson)
HAC
34
heavy atoms
MW
460
Da
LogP
2.41
cLogP
Strain ΔE
19.8 kcal/mol
SASA buried
75%
Lipo contact
82% BSA apolar/total
SASA unbound
732 Ų
Apolar buried
449 Ų

Interaction summary

HB 4 HY 24 PI 3 CLASH 1

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 rank3.453Score-27.844
Inter norm-0.662Intra norm-0.157
Top1000noExcludedno
Contacts19H-bonds4
Artifact reasongeometry warning; 19 clashes; 1 protein clash
Residues
ALA284 ALA365 ARG228 ARG287 GLY196 GLY197 GLY229 GLY286 ILE199 ILE285 LEU227 LEU332 LEU334 PHE198 PHE230 SER200 SER364 TYR221 VAL366

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5S9TContacts12
PoseOpen native poseHB0
IFP residues
ALA365 ARG228 ARG331 GLY229 LEU332 LEU334 MET333 PHE198 PHE230 SER364 THR374 VAL366
Current overlap9Native recall0.75
Jaccard0.41RMSD-
HB strict0Strict recall0.00
HB same residue+role0HB role recall0.00
HB same residue0HB residue recall0.00

Protein summary

1033 residues
Protein targetT17Atoms15160
Residues1033Chains2
Residue summaryVAL:1536; LEU:1387; LYS:1386; ILE:1064; GLU:900; THR:868; ARG:816; PHE:800; ALA:780; ASN:700; PRO:686; GLY:672; SER:616; TYR:588; ASP:528; MET:408

Receptor context

2 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 2 Excluded HETATM 0
Kept cofactors / ions
A:FAD501 B:FAD501

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
214 2.0280422353763234 -1.00697 -30.7642 7 20 0 0.00 0.00 - no Open
202 3.214704254611906 -1.05522 -34.0698 9 24 0 0.00 0.00 - no Open
230 3.452628548526986 -0.662412 -27.8439 4 19 9 0.75 0.00 - no Current
242 4.175904883997661 -0.558321 -24.6115 7 11 0 0.00 0.00 - no Open
209 4.1884291521580845 -1.00897 -35.7304 7 24 0 0.00 0.00 - no Open
137 5.328536775163464 -0.808158 -31.1597 13 18 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 -27.844kcal/mol
Ligand efficiency (LE) -0.8189kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -8.194
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 34HA

Physicochemical properties

Molecular weight 460.4Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.41
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 19.83kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 45.05kcal/mol
Minimised FF energy 25.22kcal/mol

SASA & burial

✓ computed
SASA (unbound) 732.5Ų
Total solvent-accessible surface area of free ligand
BSA total 549.3Ų
Buried surface area upon binding
BSA apolar 448.7Ų
Hydrophobic contacts buried
BSA polar 100.6Ų
Polar contacts buried
Fraction buried 75.0%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 81.7%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -6562.2Ų
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 8063.1Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 2064.2Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)