Subject: Re: cell lethal mutants Dear Dr. Kaufman, By complementation analysis I have determined that cell lethal is allelic to TAF250. The cell1 allele (obtained from Jim Kennison) fails to complement all of my TAF250 alleles. Therefore, I would like to get your permission to change the name of cell lethal to TAF250 (i.e. cell1 would be TAF250cell-1). Sincerely, David