{
  "filename": "plot_2.png",
  "iteration": 1,
  "description": "Create evidence timeline showing the history of AGK ceramide kinase claims and refutations",
  "timestamp": "2026-07-06 22:14:25",
  "code": "\nimport matplotlib.pyplot as plt\nimport matplotlib.patches as mpatches\n\nfig, ax = plt.subplots(figsize=(16, 10))\nax.set_title(\"Evidence Timeline: AGK Ceramide Kinase Activity Hypothesis\", \n             fontweight='bold', fontsize=13)\n\n# Timeline data\nevents = [\n    (2004, \"Waggoner et al.\\nPMID:15252046\", \n     \"MuLK/AGK phosphorylates ceramide in vitro\\n(but higher Vmax for DAG \u2192 'primarily a DAG kinase')\", \n     \"weakly_supports\", \"top\"),\n    (2005, \"Bektas et al.\\nPMID:15939762\", \n     \"AGK characterized: phosphorylates MAG\u2192LPA, DAG\u2192PA\\nNO mention of ceramide kinase activity\", \n     \"refutes\", \"bottom\"),\n    (2006, \"Van Overloop et al.\\nPMID:16269826\", \n     \"'No evidence for phosphorylation of ceramide\\nby the recently described multiple lipid kinase'\", \n     \"refutes\", \"top\"),\n    (2007, \"Epand et al.\\nPMID:18004883\", \n     \"MuLK is 'least selective' among DGKs\\nStudied stereospecificity for DAG only\", \n     \"neutral\", \"bottom\"),\n    (2009, \"Kalari et al.\\nPMID:19112101\", \n     \"AGK role in LPA signaling\\nNo ceramide activity mentioned\", \n     \"refutes\", \"top\"),\n    (2017, \"Kang/Vukotic et al.\\nPMID:28712726/24\", \n     \"AGK is TIM22 complex subunit\\nKinase-independent function for protein import\\nLipid kinase: MAG\u2192LPA, DAG\u2192PA\", \n     \"refutes\", \"bottom\"),\n    (2021, \"Chu et al.\\nPMID:34368119\", \n     \"AGK review: 'mitochondrial lipid kinase'\\nInvolved in lipid metabolism, not ceramide\", \n     \"refutes\", \"top\"),\n    (2023, \"Zhang et al.\\nPMID:37051931\", \n     \"AGK in platelets: tested for PA/LPA\\nNo ceramide activity tested/claimed\", \n     \"refutes\", \"bottom\"),\n    (2026, \"Multiple papers\\n(various PMIDs)\", \n     \"AGK in cancer/mitochondria\\nConsistently described as acylglycerol kinase\", \n     \"refutes\", \"top\"),\n]\n\ncolors = {\n    'weakly_supports': '#FF9800',\n    'refutes': '#F44336',\n    'neutral': '#9E9E9E',\n    'supports': '#4CAF50'\n}\n\nax.axhline(y=0, color='black', linewidth=2, zorder=1)\nyears = [e[0] for e in events]\nax.set_xlim(2002, 2028)\nax.set_ylim(-6, 6)\n\nfor i, (year, ref, desc, evidence_type, position) in enumerate(events):\n    color = colors[evidence_type]\n    y_offset = 2.5 if position == \"top\" else -2.5\n    \n    # Stem\n    ax.plot([year, year], [0, y_offset * 0.4], color=color, linewidth=2, zorder=2)\n    \n    # Box\n    bbox_props = dict(boxstyle=\"round,pad=0.4\", facecolor=color, alpha=0.15, \n                      edgecolor=color, linewidth=2)\n    \n    y_text = y_offset * 1.0\n    ax.text(year, y_text, f\"{ref}\\n\\n{desc}\", ha='center', va='center',\n            fontsize=7, bbox=bbox_props, zorder=3,\n            linespacing=1.3)\n    \n    # Dot on timeline\n    ax.plot(year, 0, 'o', color=color, markersize=10, zorder=4, markeredgecolor='black')\n\n# Legend\nlegend_patches = [\n    mpatches.Patch(color='#FF9800', label='Weakly supports (in vitro only)'),\n    mpatches.Patch(color='#F44336', label='Refutes / contradicts'),\n    mpatches.Patch(color='#9E9E9E', label='Neutral / tangential'),\n]\nax.legend(handles=legend_patches, fontsize=10, loc='lower right', \n          bbox_to_anchor=(0.98, 0.02))\n\nax.set_xlabel('Year', fontsize=11)\nax.set_yticks([])\nax.spines['top'].set_visible(False)\nax.spines['right'].set_visible(False)\nax.spines['left'].set_visible(False)\n\n# Add verdict\nax.text(0.5, 0.97, \"VERDICT: Over-annotated \u2014 Only 1 in vitro report (2004), contradicted by replication failure (2006),\\n\"\n        \"and >20 years of literature describing AGK exclusively as acylglycerol kinase\",\n        transform=ax.transAxes, ha='center', va='top', fontsize=10, fontweight='bold',\n        bbox=dict(boxstyle='round', facecolor='#FFCDD2', alpha=0.9, edgecolor='#F44336'))\n\nplt.tight_layout()\nplt.savefig('agk_evidence_timeline.png', dpi=150, bbox_inches='tight')\nplt.show()\nprint(\"Timeline saved.\")\n",
  "plot_number": 2
}