FAIRMol

MK221

Pose ID 9267 Compound 1224 Pose 688

DB Docking_panel_21Docking pose analysis is being read from this database.
Molecular metrics status: done
Cached molecular metrics are available for this pose.
Metrics cached · SASA missing

py3Dmol interaction viewer

Left: interactive complex viewer. Right: clickable PLIP-like interaction summary. Clicking an interaction thickens and highlights it in the 3D view.
Strict H-bonds Permissive H-bonds
Molecular report
Full metrics ↗
Weak Marginal quality. Consider only alongside better-scoring alternatives.
✓ Excellent LE (-0.649 kcal/mol/HA) ✓ Good fit quality (FQ -6.44) ✓ Good H-bonds (4 bonds) ✗ High strain energy (18.2 kcal/mol) ✗ Geometry warnings ✗ Protein contact clashes ℹ SASA not computed
Score
-21.422
kcal/mol
LE
-0.649
kcal/mol/HA
Fit Quality
-6.44
FQ (Leeson)
HAC
33
heavy atoms
MW
452
Da
LogP
4.67
cLogP
Strain ΔE
18.2 kcal/mol
SASA buried
computing…
Overall: Promising but geometrically suspicious
Binding evidence: strong
Native-like contacts: strong
Ligand efficiency: excellent
Geometry reliability: low
Reason: geometry warning, clashes, protein contact clashes, strain 18.2 kcal/mol

Interaction summary

Collapsible panels
H-bonds 4 Hydrophobic 24 π–π 4 Clashes 11 Severe clashes 0
Final rank6.242610330244234Score-21.4215
Inter norm-0.801816Intra norm0.140991
Top1000noExcludedno
Contacts19H-bonds4
Artifact reasongeometry warning; 14 clashes; 11 protein contact clashes; high strain Δ 24.3
ResiduesA:ALA34;A:ARG59;A:ASP54;A:GLN56;A:GLU50;A:ILE160;A:ILE47;A:LEU90;A:LEU97;A:MET55;A:NDP301;A:PHE58;A:PHE94;A:PRO52;A:PRO91;A:THR86;A:TYR166;A:VAL32;A:VAL33

Protein summary

223 residues
Protein targetT06Atoms3452
Residues223Chains1
Residue summaryARG:408; VAL:352; LYS:308; LEU:304; PRO:238; ILE:209; GLU:195; THR:182; SER:176; ALA:160; PHE:140; ASN:126; GLY:126; ASP:108; GLN:85; NDP:74

Native ligand reference

★ reference
Interaction fingerprint calculated directly from the uploaded native ligand without docking. Current H-bond mode: strict.
Name8RHTContacts21
PoseOpen native poseH-bonds6
IFP residuesA:ALA34; A:ASP54; A:HIS182; A:ILE160; A:ILE47; A:LEU90; A:LEU97; A:MET55; A:NDP301; A:PHE233; A:PHE58; A:PHE94; A:PRO91; A:SER89; A:THR184; A:THR86; A:TRP49; A:TYR166; A:TYR57; A:VAL32; A:VAL33
Current overlap15Native recall0.71
Jaccard0.60RMSD-
H-bond strict0Strict recall0.00
H-bond same residue+role0Role recall0.00
H-bond same residue1Residue recall0.25

Hydrogen bonds

Mode: strict. Count shows atom-level H-bonds; unique residues in summary: 0.

π–π interactions

Native π–π recall is disabled because no explicit native π–π reference was stored.

Hydrophobic contacts

Clashes

All stored poses for this docking hit

PoseFinal rankInter normScoreHBContactsNative overlapNative recallHB role recallRMSDExcluded
688 6.242610330244234 -0.801816 -21.4215 4 19 15 0.71 0.00 - no Current
687 13.89445675048734 -0.53047 -10.0735 4 21 15 0.71 0.00 - yes Open

Molecular metrics

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

Scoring & efficiency

Docking score -21.422kcal/mol
Ligand efficiency (LE) -0.6491kcal/mol/HA
Score / heavy atom count
Fit quality (FQ) -6.441
LE / (0.072 + 0.95/HAC) — Leeson & Springthorpe
Heavy atom count 33HA

Physicochemical properties

Molecular weight 451.6Da
Lipinski: ≤ 500 Da
LogP (cLogP) 4.67
Lipinski: ≤ 5
Rotatable bonds 7

Conformational strain (MMFF94s)

Strain energy (ΔE) 18.23kcal/mol
< 5 good · 5–10 marginal · > 10 problematic
Docked FF energy 48.99kcal/mol
Minimised FF energy 30.76kcal/mol

SASA & burial (FreeSASA)

not yet run
SASA has not been computed yet for this pose. Queue a background recompute to populate FreeSASA burial metrics without blocking the page.