FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.
ctunspecified has phenotype, enhanceable by Chik04405
ctunspecified has phenotype, enhanceable by ctp1
uex1 does not interact with the ctunspecified mutation.