The past determines the future: sugar source history and transcriptional memory.

Current Genetics
Poonam BhedaRobert Schneider

Abstract

Transcriptional reinduction memory is a phenomenon whereby cells "remember" their transcriptional response to a previous stimulus such that subsequent encounters with the same stimulus can result in altered gene expression kinetics. Chromatin structure is thought to play a role in certain transcriptional memory mechanisms, leading to questions as to whether and how memory can be actively maintained and inherited to progeny through cell division. Here we summarize efforts towards dissecting chromatin-based transcriptional memory inheritance of GAL genes in Saccharomyces cerevisiae. We focus on methods and analyses of GAL (as well as MAL and INO) memory in single cells and discuss the challenges in unraveling the underlying mechanisms in yeast and higher eukaryotes.

References

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Methods Mentioned

BETA
flow cytometry
BAR-seq
flow
fluorescence-activated cell sorting

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