The relation of liver kynureninase to tryptophan metabolism in pyridoxine deficiency.

نویسنده

  • W E KNOX
چکیده

Birch, A. J. (1950). Rep. Progr. Chem. 47, 177. Crombie, L. & Harper, S. H. (1950). J. chem. Soc. p. 2685. Fredga, A. (1941). Ark. Kemi Min. Geol. 14B, no. 27. Fredga, A. (1942). Ark. Kemi Mmn. Geol. 15B, no. 23. Fredga, A. (1944). The Svedberg 1884.1944,p. 261. Uppsala: Almqvist and Wicksells. Hansen, R. P., Shorland, F. B. & Cooke, N. J. (1952). Biochem. J. 52, 203. Hansen, R. P., Shorland, F. B. & Cooke, N. J. (1953). * Biochem. J. 53, 374. Klyne, W. (1951). Chem. & Ind. p. 1022. Marckwald, W. (1899). Ber. dtsch. chem. Gee. 82, 1089. Marckwald, W. & Nolda, E. (1909). Ber. dtech. chem. Gem. 42, 1583. Stillberg-Stenhagen, S. (1949). Ark. Kemi, 1, 187. StOlberg-Stenhagen, S. (1950). Ark. Kemi, 2, 95. Tschugaeff, L. (1898). Ber. dt8ch. chem. Ge8. 81, 360. Velick, S. F. & English, J., jun. (1945). J. biol. Chem. 160, 473. Weitkamp, A. W. (1945). J. Amer. chem. Soc. 67,447. Welt, I. (1894). C.R. Acad. Sci., Pari, 119, 855.

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The intermediary metabolism of tryptophan by cat and rat tissue preparations.

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عنوان ژورنال:
  • The Biochemical journal

دوره 53 3  شماره 

صفحات  -

تاریخ انتشار 1953