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. 2008 Nov 3;29(1):281–301. doi: 10.1128/MCB.01415-08

FIG. 3.

FIG. 3.

EM of affinity-purified Drosophila B complexes reveals structural similarities with human B complexes. (A and B) EM overviews and single-particle images of negatively stained Drosophila B complexes formed on Ftz-M3 (A) or Zeste62-M3 (B) pre-mRNA in Kc nuclear extract. A schematic of the predominant view of Drosophila Ftz or Zeste62 B complex with the various regions/domains indicated is shown at the right. (C) Galleries of representative class averages of human B complexes formed on an adenovirus-derived pre-mRNA (top row), Drosophila B complexes formed on Ftz-M3 (middle row), or Zeste62-M3 (bottom row) pre-mRNA. For each class, approximately 40 to 50 individual images were averaged. The bar corresponds to 30 nm.