Gene or accession: CG6741 Missed gene Comments: The sequence CG6741, even though I could not find it anywhere (GeneScene is not working from my home computer) seems almost certainly from its map position and the fact that it has two PDZ domains to be the Drosophila arc gene. Our paper on arc (Liu and Lengyel) is in press in Developmental Biology. The NCBI accession numbers (multiple splice forms) are AF188473-5. Thank you for all your wonderful work.