We are sorry to pass on to you a sad news. We recently learned that Charles B. Millard passed away A second look at the crystal structures of Drosophila melanogaster Acetylcholinesterase in complex with tacrine derivatives providing insights concerning catalytic intermediates and the design of specific insecticides is published by Nachon et al. and structures (6XYS, 6XYU, 6XYY) will be available soon. Sun et al. published that divergent receptor proteins confer responses to different karrikins in two ephemeral weeds. Longaretti et al. showed that Termination of acute stress response by the endocannabinoid system is regulated through LSD1-mediated transcriptional repression of 2-AG hydrolases ABHD6 and MAGL.