Fig. 3.

A model of Su(Hw)-dependent insulator complex formation. The domains of the Su(Hw) protein are shown in lilac; Mod(mdg4)-67.2 protein domains are shown in green; CP190 protein domains, in orange; and HIPP1 protein domains, in blue. Domain abbreviations: CID – CP190 interacting domain; Ac – C-terminal acidic domain; ZF – zinc finger domain; LZ – leucine zipper; BTB – BTB/POZ domain; Q – glutamine-rich region; DD – dimerization domain; FLYWCH – FLYWCH type zinc finger; SID – Su(Hw) interacting domain; D – asparagine- rich domain; M – the microtubule and centrosome associated domain; E – glutamine-rich C-terminal domain. Below is the consensus binding sequence for the Su(Hw) protein from the gypsy insulator. The ZFs binding each motif are shown with arrows