The C-terminal half of the mib1 coding region has been removed, leaving the Mib/Herc2 domains, the zinc finger domain and the 2 Mib domains.
Expression of mib1N.Scer\UAS.T:Zzzz\His6,T:Hsap\MYC has a weak ability to induce wing vein thickening and induces wing blistering. However, head bristles are not affected.