The following information accompanied stocks donated to the Bloomington Stock Center by Terry Orr-Weaver, Massachusetts Institute of Technology. cortZ2-0564 and cortZ2-1446 are cort alleles isolated from the Zuker screen (Koundakjian et al. (FBrf0179036)). cortZ2-1446 encodes a cort protein with a Serine to Arginine substitution at residue 118 and a Glutamine to Glutamic Acid substitution at residue 119.