| Range |
Table - link
|
| Organism |
Bacteria Escherichia coli |
| Reference |
Neidhardt and Umbarger, chapter 3 in Neidhardt F.C. Escherichia coli and Salmonella: Cellular and Molecular Biology. 2nd edition. Vol 1. American Society of Microbiology (ASM) Press 1996. table 1 |
| Primary Source |
[10] Neidhardt, F. C., J. L. Ingraham, and M. Schaechter 1990. Physiology of the Bacterial Cell: a Molecular Approach. Sinauer Associates, Sunderland, Mass. |
| Comments |
Chapter 3 p.2 2nd paragraph: "Composition of an average E. coli B/r cell: The B and B/r strains of E. coli have been the subject of extensive biochemical and metabolic studies, more so than even the K-12 strains popular with geneticists. (Rapid growth in minimal medium, serving as host to T-even and other phages, and tight variance of cell division are some of the reasons that B and B/r strains have been favored by physiologists.) The information in Table 1 has been compiled from several sources, listed in the footnotes to the table. The compilation was guided by the article by Umbarger (ref 17), and began with the overall percent composition data of Roberts et al. (ref 13) for macromolecules. These data were then adjusted to match other information on glycogen (ref 5), lipid (ref 16), polyamines (ref 9), and stable RNA/protein/DNA ratios (ref 4). The dry weight per cell was determined in the author’s laboratory (F.C.N.) by weighing the dried cells removed by filtration from samples of a culture which had also been assayed for total cell content with the aid of an electronic particle counter." General information on quantities of macromolecules per cell. Note 'a' beneath table: "Calculated for an average cell in a population of E. coli B/r in balanced growth at 37°C in aerobic glucose minimal medium with a mass doubling time of 40 min." See note 'a' under table for more details. For fraction of glycerol based lipids out of total dry weight see BNID 106783 |
| Entered by |
Ben Marks |
| ID |
101436 |