FAIRMol

MK33

Pose ID 7018 Compound 395 Pose 244

DB fairmolDocking pose analysis is being read from this database.
Molecular metrics status: done
RDKit SASA-based burial metrics are cached.
SASA cached
T11
L. infantum SIR2 L. infantum
Ligand MK33

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 strong SASA done
Strain ΔE
44.1 kcal/mol
Protein clashes
3
Internal clashes
3
Native overlap
contact recall 0.72, Jaccard 0.59, H-bond role recall 0.20
Burial
90%
Hydrophobic fit
88%
Reason: strain 44.1 kcal/mol
strain ΔE 44.1 kcal/mol 3 protein-contact clashes 3 intramolecular clashes
Molecular report
Full metrics ↗
Reject Multiple quality flags — this pose should be deprioritised or discarded.
✓ Excellent LE (-0.560 kcal/mol/HA) ✓ Good fit quality (FQ -5.50) ✓ Good H-bonds (4 bonds) ✓ Deep burial (90% SASA buried) ✓ Lipophilic contacts well-matched (88%) ✗ Extreme strain energy (44.1 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (14)
Score
-17.908
kcal/mol
LE
-0.560
kcal/mol/HA
Fit Quality
-5.50
FQ (Leeson)
HAC
32
heavy atoms
MW
462
Da
LogP
2.78
cLogP
Strain ΔE
44.1 kcal/mol
SASA buried
90%
Lipo contact
88% BSA apolar/total
SASA unbound
771 Ų
Apolar buried
605 Ų

Interaction summary

HB 4 HY 24 PI 3 CLASH 3

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 rank3.818Score-17.908
Inter norm-0.830Intra norm0.264
Top1000noExcludedno
Contacts17H-bonds4
Artifact reasongeometry warning; 14 clashes; 2 protein clashes; high strain Δ 43.7
Residues
ALA40 ASN125 GLN124 GLU192 GLY191 HIS144 HIS222 ILE126 LEU194 PHE189 PHE190 PHE51 PHE74 PRO223 THR71 VAL188 VAL221

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name5OL0Contacts18
PoseOpen native poseHB0
IFP residues
ASN193 GLN220 GLU192 GLY191 HIS144 HIS222 ILE126 LEU194 LEU226 PHE189 PHE190 PHE199 PHE74 PRO223 THR71 VAL187 VAL188 VAL221
Current overlap13Native recall0.72
Jaccard0.59RMSD-
HB strict1Strict recall0.20
HB same residue+role1HB role recall0.20
HB same residue2HB residue recall0.50

Protein summary

287 residues
Protein targetT11Atoms4391
Residues287Chains1
Residue summaryLEU:627; ARG:432; VAL:384; GLU:316; PHE:300; ILE:285; ALA:260; PRO:238; HIS:187; ASP:157; LYS:154; SER:154; THR:154; GLY:147; ASN:140; TYR:126

All stored poses for this docking hit

PoseFinal rankInter normScoreHBCTCT overlapCT recallHB role rec.RMSDExcluded
321 2.3190664543888877 -0.843483 -22.2376 3 18 0 0.00 0.00 - no Open
302 3.741445713545639 -0.604967 -16.2823 8 11 0 0.00 0.00 - no Open
244 3.8180782023918276 -0.830247 -17.9078 4 17 13 0.72 0.20 - 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 -17.908kcal/mol
Ligand efficiency (LE) -0.5596kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -5.503
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 32HA

Physicochemical properties

Molecular weight 461.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 2.78
Lipinski: ≤ 5
Rotatable bonds 9

Conformational strain (MMFF94s)

Strain energy (ΔE) 44.15kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 75.84kcal/mol
Minimised FF energy 31.69kcal/mol

SASA & burial

✓ computed
SASA (unbound) 771.3Ų
Total solvent-accessible surface area of free ligand
BSA total 691.5Ų
Buried surface area upon binding
BSA apolar 605.4Ų
Hydrophobic contacts buried
BSA polar 86.1Ų
Polar contacts buried
Fraction buried 89.6%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 87.6%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2131.9Ų
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 2380.0Ų
Non-polar SASA of receptor alone (VdW proxy, nonpolar atoms only)
Complex non-polar SASA 911.4Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)