he following information accompanied stocks donated to the Bloomington Stock Center by Richard Carthew, Northwestern University. The mutation present in Dcr-1d102 (FBal0184191) converts the codon for glutamine at position 1948 to a stop codon. The allele should be renamed Dcr-1Q1948X to be consistent with the naming of other Dcr-1 and Dcr-2 alleles.