Dry mass density

Value 0.34 g/ml
Organism Bacteria Escherichia coli
Reference Ridgway D et al., Coarse-grained molecular simulation of diffusion and reaction kinetics in a crowded virtual cytoplasm. Biophys J. 2008 May 15 94(10):3748-59. doi: 10.1529/biophysj.107.116053 p.3752 left column 2nd paragraphPubMed ID18234819
Primary Source Zimmerman SB, Trach SO. Estimation of macromolecule concentrations and excluded volume effects for the cytoplasm of Escherichia coli. J Mol Biol. 1991 Dec 5 222(3):599-620.PubMed ID1748995
Comments "Since ribosomes constitute 40–50% of the total cell mass of exponentially growing E. coli (62), a separate ribosomal class was introduced that assumed a copy number of 18,000 ribosomes per cell (60) contributing to a total density of 0.34 g/ml (primary source)."
Entered by Uri M
ID 109049