Cellular demand for L-Met biosynthetic pathway for E. coli grown in media devoid of Met

Value 31000 Met/sec
Organism Bacteria Escherichia coli
Reference Li GW, Burkhardt D, Gross C, Weissman JS. Quantifying absolute protein synthesis rates reveals principles underlying allocation of cellular resources. Cell. 2014 Apr 24 157(3):624-35. doi: 10.1016/j.cell.2014.02.033. p.631 right column 2nd paragraphPubMed ID24766808
Method "[Researchers] focused on the well-characterized L-Met biosynthetic pathway for E. coli grown in media devoid of Met. [They] first calculated the cellular demand for this pathway (31,000/sec Met per cell), i.e., the rate of Met consumption by protein synthesis, by summing up the absolute rates of protein synthesis [they] determined for each protein multiplied by the number of Met residues in that protein."
Comments "The other major pathway that consumes Met, which is the synthesis of S-adenosyl-L-Met, was estimated to contribute to a small fraction of the overall flux (Feist et al., 2007) (see also Extended Experimental Procedures)."
Entered by Uri M
ID 110446