FAIRMol

MK3

Pose ID 7010 Compound 284 Pose 236

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 MK3

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 medium Native strong SASA done
Strain ΔE
35.3 kcal/mol
Protein clashes
1
Internal clashes
1
Native overlap
contact recall 0.72, Jaccard 0.57, H-bond role recall 0.60
Burial
71%
Hydrophobic fit
83%
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 (-0.707 kcal/mol/HA) ✓ Good fit quality (FQ -7.19) ✓ Strong H-bond network (6 bonds) ✓ Deep burial (71% SASA buried) ✓ Lipophilic contacts well-matched (83%) ✗ Very high strain energy (35.3 kcal/mol) ✗ Geometry warnings ✗ Many internal clashes (15)
Score
-25.453
kcal/mol
LE
-0.707
kcal/mol/HA
Fit Quality
-7.19
FQ (Leeson)
HAC
36
heavy atoms
MW
499
Da
LogP
1.32
cLogP
Strain ΔE
35.3 kcal/mol
SASA buried
71%
Lipo contact
83% BSA apolar/total
SASA unbound
839 Ų
Apolar buried
491 Ų

Interaction summary

HB 6 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 rank3.700Score-25.453
Inter norm-0.680Intra norm-0.027
Top1000noExcludedno
Contacts18H-bonds6
Artifact reasongeometry warning; 15 clashes; 2 protein clashes; high strain Δ 35.3
Residues
ASN125 GLN124 GLU192 GLY191 HIS144 HIS222 ILE126 LEU194 LEU93 LEU95 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
Jaccard0.57RMSD-
HB strict3Strict recall0.60
HB same residue+role3HB role recall0.60
HB same residue3HB residue recall0.75

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
314 1.8403910590171513 -0.854739 -30.533 4 21 0 0.00 0.00 - no Open
265 3.2535200232590507 -0.957853 -29.2182 11 11 0 0.00 0.00 - no Open
236 3.7004113748811287 -0.679853 -25.4528 6 18 13 0.72 0.60 - no Current
273 3.8458234271104295 -0.611894 -16.691 5 18 0 0.00 0.00 - no Open
276 3.866792565577019 -0.639361 -14.0366 8 22 0 0.00 0.00 - no Open
196 4.975403539515579 -0.770765 -16.315 12 20 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 -25.453kcal/mol
Ligand efficiency (LE) -0.7070kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -7.186
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 36HA

Physicochemical properties

Molecular weight 498.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 1.32
Lipinski: ≤ 5
Rotatable bonds 11

Conformational strain (MMFF94s)

Strain energy (ΔE) 35.31kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 66.93kcal/mol
Minimised FF energy 31.62kcal/mol

SASA & burial

✓ computed
SASA (unbound) 838.6Ų
Total solvent-accessible surface area of free ligand
BSA total 593.2Ų
Buried surface area upon binding
BSA apolar 491.0Ų
Hydrophobic contacts buried
BSA polar 102.2Ų
Polar contacts buried
Fraction buried 70.7%
> 60 % indicates good pocket engagement
Lipophilic contact ratio 82.8%
BSA apolar / BSA total — high = hydrophobic driver
Δ Non-polar SASA -2133.1Ų
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 960.5Ų
Non-polar SASA of full complex (VdW proxy, nonpolar atoms only)