Binding with distinction: Photo-cross-linking followed by the complementary use of ESI and MALDI mass spectrometric techniques yielded the interaction sites of three prototypical amphipathic transcriptional activators (represented by different-colored helices in the picture) with the coactivator Med15. Investigation of the functional relevance of these sites in yeast revealed overlapping yet distinct binding patterns for the activators investigated.
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Majmudar et al. (2009) studied this question.
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