Letter | Published:

X-Ray Sensitivity and Target Volume of Enzyme Induction


THE enzyme activity of lysime decarboxylase after induction with L-lysine in non-growing Bacterium cadaveris (NCTC, 6578) increases nearly linearly with time1 until the ‘final activity’ level is reached. The ‘final activity’ and the ‘induction rate’—the slope within the linear range of the activity curve in Fig. 1—are characteristic for this strain and enzyme.

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  1. 1

    Mandelstam, I., J. Gen. Microbiol., 11, 426 (1954).

  2. 2

    Pollard, E., Guild, W. R., Hutchinson, F., Setlow, R. B., Prog. Biophysics, 5, 72 (1955).

  3. 3

    Pauly, H., Rajewsky, B., and Bücker, H., Arch. Biochem. Biophys. (in the press).

  4. 4

    Novick, A. (personal communication).

  5. 5

    Pollard, E. (personal communication).

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