Mean number of ribosomes for a modified K-12 strain under moderate growth conditions at 30°C

Range ~55,000 (30,000 to 70,000) Ribosomes/cell
Organism Bacteria Escherichia coli
Reference Bakshi S, Siryaporn A, Goulian M, Weisshaar JC. Superresolution imaging of ribosomes and RNA polymerase in live Escherichia coli cells. Mol Microbiol. 2012 Jul85(1):21-38. doi: 10.1111/j.1365-2958.2012.08081.x. p.26 right column top paragraphPubMed ID22624875
Method Superresolution fluorescence microscopy
Comments P.26 right column top paragraph: "For ribosomes (meaning the sum of 30S subunits and complete 70S ribosomes), the resulting estimated copy number ranges from ~30,000 to ~70,000 ribosomes per cell (42 cells, Fig. S6). The mean number of ribosomes per cell is ~55,000. The ribosome copy number increases monotonically with cell volume."
Entered by Uri M
ID 108600