| Value |
110
Copies/cell
|
| Organism |
Bacteria Escherichia coli |
| Reference |
Jishage M, Iwata A, Ueda S, Ishihama A. Regulation of RNA polymerase sigma subunit synthesis in Escherichia coli: intracellular levels of four species of sigma subunit under various growth conditions. J Bacteriol. 1996 Sep178(18):5447-51. Table - link PubMed ID8808934
|
| Method |
Cells were grown in LB medium at 37°C with shaking. At the middle of
exponential growth phase, the levels of s subunits were determined by the
quantitative Western blot system. The determination was repeated at least three
times, and the values are the averages. |
| Comments |
Previously researchers estimated that the intracellular level of s70
subunit is about 700 molecules per E. coli W3350 cell throughout
the change in growth phase (BNID 105160). Based on this number they calculate from s70/s54 ratio in table link [(25fmol/µgram)s54]/[(160fmol/µgram)s70] a number of 110 copies of s54/cell |
| Entered by |
Uri M |
| ID |
105166 |