The role of the C-terminal sequences in recruiting Mod(mdg4)-67.2 to chromatin. (a) Polytene chromosomes of +/+, mu1/ mu1, and mT6/ mT6 larvae. Polytene chromosomes stained with antibodies against CP190 (red), Mod-67.2 (green), Mod-com (common part of Mod(mdg4), blue) and N-terminal region of Su(Hw) (green). Analysis of transgenic lines was performed on the y2scD1ct6; mod(mdg4)u1/mod(mdg4)u1 background. Arrows indicate gypsy inserts at the X-chromosome tip. (b) ChIP-qPCR analysis of Su(Hw), Mod-67.2 and CP190 binding in middle pupae of +/+, mT6/mT6 and mu1/mu1 alleles. PCR products were amplified from two separate immunoprecipitates of three different chromatin preparations. The ras64B coding region (Ras) was used as a control devoid of Su(Hw)-binding sites. Error bars indicate the standard deviation of three independent biological replicates. *p ≤ 0.05 (Student's t-test); in other cases, p ≤ 0.01. Other designations are as in figure 1b.