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A
drawing of the transcription machine, showing where
the "heart" binds to the TATA box in the promotor
upstream of the gene (right), turning the gene on.
Each colored blob is a complex of several proteins,
all of which work together to transcribe the gene
into messenger RNA. Scientific American
image
Related
story: Scientists
snap first 3-D pictures of the "heart" of the
transcription machine
.
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