Synthesis time of beta-galactosidase in Escherichia coli B/r as a function of growth rate. Academic Article uri icon


  • By analysing the kinetics of beta-galactosidase accumulation after induction, the synthesis time of beta-galactosidase in Escherichia coli B/r was found to be 75s in rapidly growing cells (1.36 and 2.1 doublings/h), and 90s in slowly growing cells (0.63 doubling/h). These values correspond to peptide-chain-elongation rates of 16 and 13 amino acids/s respectively, in agreement with previous findings, indicating that the peptide-chain growth rate is constant (presumably maximal) in fast-growing bacteria, but decreased in slowly growing bacteria [Forchhammer & Lindahl (1971) J. Mol. Biol. 55, 563-568].

published proceedings

  • Biochem J

author list (cited authors)

  • Dalbow, D. G., & Young, R.

citation count

  • 61

complete list of authors

  • Dalbow, DG||Young, R

publication date

  • January 1975