||Bacteria Escherichia coli
||Kukko-Kalske E, Lintunen M, Inen MK, Lahti R, Heinonen J. Intracellular PPi concentration is not directly dependent on amount of inorganic pyrophosphatase in Escherichia coli K-12 cells. J Bacteriol. 1989 Aug171(8):4498-500. p.498 right column 2nd paragraphPubMed ID2546923
||See Kukko, E., and J. Heinonen. 1982 PMID 6291941
||The intracellular PPi concentration was the same (1.5
nmol/mg [dry weight] or about 0.5 mM) in the wild-type
strain E. coli K-12 and in mutant strains JP5 and JM36,
although the PPase levels in the mutant strains were 15 and
150%, respectively, of those of the wild type.