Imprecise excision of P{SUPor-P}Brca2KG03961 leaves an 8.7kb remnant of P{SUPor-P}Brca2KG03961 between the ATG start codon and the transcriptional start site of Brca2. The insertion retains the entire y gene but only a part of the w coding regions.
Brca2FA36 homozygous and Brca2FA7/Brca2FA36 transheterozygous mutants exhibit an increase in the frequency of single strand annealing (as shown by an assay using Scer\SCEIhs.PR and wwIw).