S21-166 First Report of Small Molecule inhibitors of Histone Acetyltransferase 1 (HAT1) with Anti-Tumor Activity Using their newly developed acetyl-click screening platform, researchers at Stanford have identified riboflavin analogs as small molecule inhibitors of Histone Acetyltransferase 1 (HAT1) with anti-cancer activity. Joshua Gruber Andrew Lipchik Michael Snyder Steven Schow