Pi concentration

Value 10 mM
Organism Bacteria Escherichia coli
Reference Amin N, Peterkofsky A. A dual mechanism for regulating cAMP levels in Escherichia coli. J Biol Chem. 1995 May 19 270(20):11803-5. p. 11805 left columnPubMed ID7744829
Primary Source Rao N. N., Kar A., Roberts M. F., Yashphe J., Torriani-Gorini A.(1994) Phosphate in Microorganisms (Torriani-Gorini A., Yagil E., Silver S., eds) pp. 22–19, ASM Press, Washington, D.C.
Comments Under conditions of carbon source starvation, E. coli cells accumulate Pi to levels of approximately 20-30 mM (BNID 105539). After addition of glucose to a suspension of carbon-starved E. coli, the cellular Pi level decreases substantially (Reddy P., Liberman E., Gazdar C., Peterkofsky A.(1985) Gene Manipulation and Expression (Glass R. E., Spizek J., eds) pp. 318–338, Croom Helm, Kent, United Kingdom). Under typical growth conditions, there are numerous controls (the Pho regulon) that maintain the cytoplasmic Pi at a high concentration (approximately 10 mM). For value of 1mM see comments section of BNID 105541
Entered by Uri M
ID 105540