P-element insertion into the coding sequence of the second exon. An upstream portion of the second exon is spliced out upstream of codon 44. The ATG at position 145 is the first possible initiator resulting in an N-terminally truncated protein lacking the first 144 amino acids.
Causes a dorsalised phenotype.
Females homozygous for this allele or heterozygous for this allele and a deficiency for cact generate strongly dorsalized or dorsolateralized embryos. Females transheterozygous for this allele and a loss of function allele result in embryos in which ventral structures are progressively lost at the expense of dorsal structures as the strength of the loss of function allele increases.
When in trans to loss-of-function cact alleles a dorsalized embryo is generated.
cactBQ/cactE10 is partially rescued by cactΔ51.αTub67C.lacZ
cactBQ/cactE10 is partially rescued by cactΔ76.αTub67C.lacZ
cactBQ/cactE10 is partially rescued by cactαTub67C.lacZ
cactBQ/cactE10 is partially rescued by cactΔ101.αTub67C.lacZ
cactBQ/cactE10 is partially rescued by cactS74A.S78A.αTub67C.lacZ
cactBQ/cactE10 is partially rescued by cactS74A.S78A.S82A.S83A.αTub67C.lacZ
cactBQ/cactE10 is not rescued by cactΔ100.S116A.αTub67C.lacZ
cactBQ/cactE10 is not rescued by cactΔ125.αTub67C.lacZ
cactBQ/cactE10 is not rescued by cactΔ100.S104A.S116A.αTub67C.lacZ