A conundrum of r-protein stability: unbalanced stoichiometry of r-proteins during stationary phase in Escherichia coli Authors: Kaspar Reier 1, Petri-Jaan Lahtvee 2, Aivar Liiv 1, Jaanus Remme 1. 1 Institute of Molecular and Cell Biology, University of Tartu, Riia 23b 51010, Tartu, Estonia 2 Department of Chemistry and Biotechnology, Tallinn University of Technology, Akadeemia tee 15 12618, Tallinn, Estonia Corresponding author(s): Kaspar Reier, Aivar Liiv, Jaanus Remme Contact Information: kaspar.reier@ut.ee; aivar.liiv@ut.ee; jremme@ut.ee Institute of Molecular and Cell Biology, University of Tartu, Riia 23, 51010, Tartu, Estonia General Introduction Bacterial ribosomes are composed of three RNA (rRNA) and over 50 ribosomal protein (r-protein) molecules. R-proteins are essential for ribosome assembly, structural stability, and also participate in almost all ribosome functions. Ribosomal components are present in stoichiometric amounts in the mature 70S ribosomes during the exponential and early stationary growth phases. Ribosomes are degraded in stationary phase, however, the stability and fate of ribosomal proteins during stationary growth phase are not known. ***Description of the data in this data set*** Data incuded is grouped by figure numbers used in the manuscript. Figure legends are found in a seperate file.