Clearing the way for unpaused polymerases.

Weake, Vikki M; Workman, Jerry L · Cell · 2008

basic_science · Level V

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Abstract

Heat shock loci in the polytene chromosomes of the fruit fly Drosophila undergo a characteristic change in appearance that coincides with the onset of gene expression. Petesch and Lis (2008) now show that nucleosomes are lost across the entire Hsp70 locus in an initial wave that precedes transcription by RNA polymerase II.

Medical subject headings