English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

18 We would like to acknowledge the generous supply of various mutants by Drs. E. and J. Lederberg, D. Kaiser, B. Horecker, J. Monod, T. Fukasawa, and H. Nikaido. 19 Fukasawa, T., and H. Nikaido, Nature, 183, 1131 (1959). 20 Fukasawa, T., and H. Nikaido, Nature (in press). 21 Monod, J., G. Cohen-Bazire, and M. Cohn, Biochim. Biophys. Acta, 7, 585 (1951). 22 Hartman, P. E., Carnegie Inst. Washington Publication No. 612 (1956). 23 Monod, J., Growth, 11, 223 (1947). 24 Spiegelman, S., J. Cell. and Comp. Physiol., 25, 121 (1945). 26 The composition per liter volume is as follows: galactose, 10 gm.; casein digest, 8 gm.; yeast extract, 1 gm.; sodium chloride, 5 gm.; K3HPO4, 2 gm.; eosin Y, 0.4 gm.; methylene blue, 0.065 gm. and agar 15 gm.; 20 to 25 ml. was used for a Petri plate, according to Lederberg, J., Methods in Medical Research 3, 52 (1950). 26 Nossal, P. M., Australian J. Expt. Biol., 31, 583 (1953). 27 Roberts, R. B., D. B. Cowie, P. H. Abelson, E. T. Bolton, and R. J. Britten, Studied of Biosynthesis in Escherichia coli, Carnegie Institution of Washington, D. C., 1955, p. 5. 28 Lowry, 0. H., H. J. Rosebrough, A. L. Farr, and R. J. Randall, J. Biol. Chem., 193, 265 (1951). 29 Westphal, O., O. Luderitz, and G. Bister, Z. Naturfordch., 7B, 148 (1952). 30 This enzyme was purified, crystallized, and kept in this form :12 a small part of the crystalline suspension was dissolved in acetate buffer (0.15 M, pH 5.5) shortly before use. Such a solution remained active without the addition of glucose-1,6-diphosphate for about one week. 31 Unpublished methods by K. Kurahashi and A. Sugimura. 32 It is necessary to set up a zero time control for galactokinase activity and the value for Gal-1P formed was corrected for the zero time control. This is especially important if liver transferase was utilized as indicator enzyme, since it is contaminated by small amounts of galactokinase.13 33 Kirkman, H. N., and E. S. Maxwell, unpublished. 34 Cohn, M., and J. Monod, Biochim. Biophys. Acta, 7, 153 (1951). 35 Lederberg, J., J. Bact., 60, 381 (1950). 36 Novick, A., and M. Weiner, these PROCEEDINGS, 43, 553 (1957). 37 DeLey, J., and M. Doudoroff, J. Biol. Chem., 227, 745 (1957).

HEREDITARY DEFECTS IN GALACTOSE METABOLISM IN ESCHERICHIA COLI MUTANTS, II. GALACTOSE-INDUCED SENSITIVITY