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Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2014 ; 111 (50): 17893-8 Nephropedia Template TP
Proc Natl Acad Sci U S A 2014[Dec]; 111 (50): 17893-8 PMID25468975show ga
Transcription is affected, in part, by the spooling of promoter DNA in nucleosomes. EM analysis of single PHO5 gene molecules from budding yeast revealed a surprising degree of variation in the promoter nucleosome configuration between individual molecules. This variation could be explained on the theory of random transitioning between alternative configurations, suggesting that genes flicker between transcriptionally conducive and unconducive states. What is the origin of this random behavior? Here, we show that the nucleosomal promoter variation cannot be reduced to molecular variation in the gene?s intracellular surroundings, that is, it is intrinsically stochastic and thus, a cause of stochastic transcription rather than its consequence).