Insertion of sequence including a frameshift mutation in exon 10B and replacement of exon 11 with 2A-GAL4 into the attP site within the TI{TI}Dscam2founder line. This creates an isoform reporter for exon 10A and is also a Dscam2 null allele.
Expression in neurons L2, L3, and L5 are detected using an intersectional strategy.