MRNA abundance in samples isolated using two different RNA isolation methods or treated with proteinase K

Copyright information:Taken from "Release of extraction-resistant mRNA in stationary phase produces a massive increase in transcript abundance in response to stress"Genome Biology 2006;7(2):R9-R9.Published online 8 Feb 2006PMCID:PMC1431719.Copyright © 2006 Aragon et al.; licensee BioMed Central Ltd. Unsupervised hierarchical clustering (Person's centered, average-linkage) of approximately 4,000 transcripts. RNA was isolated from unstressed cells from stationary phase cultures using the modified Gentra isolation method, hot phenol, or treated with proteinase K. Results were normalized to samples isolated using our RNA isolation method. Biological replicates for each RNA isolation method are shown. The color scale at the bottom represents the logvalues for changes in mRNA abundance.