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Type I iodothyronine deiodinase is a selenocysteine-containing enzyme

Abstract

ALTHOUGHthyroxine (3,5,3',5'-tetraiodothyronine, T4) is the principal secretory product of the vertebrate thyroid, its essential metabolic and developmental effects are all mediated by 3,5,3'-triiodothyronine (T3), which is produced from the prohormone by 5'-deiodination. The type-I iodothyronine deiodinase, a thiol-requiring propylthiouracil-sensitive oxidoreductase, is found mainly in liver and kidney and provides most of the circulating T31 but so far this enzyme has not been purified. Using expression cloning in the Xenopus oocyte, we have isolated a 2.1-kilobase complementary DNA for this deiodinase from a rat liver cDNA library. The kinetic properties of the protein expressed in transient assay systems, the tissue distribution of the messenger RNA, and its changes with thyroid status, all confirm its identity. We find that the mRNA for this enzyme contains a UGA codon for selenocysteine which is necessary for maximal enzyme activity. This explains why conversion of T4 to T3is impaired in experimental selenium deficiency2–6 and identifies an essential role for this trace element in thyroid hormone action.

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References

  1. Larsen, P. R., Silva, J. E. & Kaplan, M. M. Endocr. Rev. 2, 87–102 (1981).

    Article  CAS  Google Scholar 

  2. Beckett, G. J., Beddòws, S. E., Morrice, P. C., Nicol, F. & Arthur, J. R. Biochem. J. 248, 443–447 (1987).

    Article  CAS  Google Scholar 

  3. Arthur, J. R., Morrice, P. C. & Beckett, G. J. Res. Vet. Sci. 45, 122–123 (1988).

    Article  CAS  Google Scholar 

  4. Beckett, G. J., MacDougall, D. A., Nicol, F. & Arthur, J. R. Biochem. J. 259, 887–892 (1989).

    Article  CAS  Google Scholar 

  5. Arthur, J. R., Nicol, F., Hutchinson, A. R. & Beckett, G. J. J. inorg. Biochem. 39, 101–108 (1990).

    Article  CAS  Google Scholar 

  6. Arthur, J. R., Nicol, F., Rae, P. W. H. & Beckett, G. J. Clin. Chem. Enzym. Commun. 3, 209–214 (1990).

    Google Scholar 

  7. Berry, M. J., Kates, A.-L. & Larsen, P. R. Molec. Endocr. 4, 743–748 (1990).

    Article  CAS  Google Scholar 

  8. St Germain, D. L. & Morganelli, C. M. J. biol. Chem. 264, 3054–3056 (1989).

    CAS  PubMed  Google Scholar 

  9. Aruffo, A. & Seed, B. Proc. natn. Acad. Sci. U.S.A. 84, 8573–8577 (1987).

    Article  ADS  CAS  Google Scholar 

  10. Brent, G. A. et al. Molec. Endocr. 3, 1996–2004.

  11. Leonard, J. L. & Visser, T. J. in Thyroid Hormone Metabolism (ed. Hennemann, G.) 189–229 (Dekker, New York, 1986).

    Google Scholar 

  12. Chambers, I. et al. EMBO J. 5, 1221–1227 (1986).

    Article  CAS  Google Scholar 

  13. Mullenbach, G. T. et al. Protein Engng 2, 239–246 (1988).

    Article  CAS  Google Scholar 

  14. Zinoni, F., Birkmann, A., Stadtman, T. C. & Bock, A. Proc. natn. Acad. Sci. U.S.A. 83, 4650–4654 (1986).

    Article  ADS  CAS  Google Scholar 

  15. Menon, N. K., Peck, H. D. Jr, LeGall, J. & Przybyla, A. E. J. Bact. 169, 5401–5407 (1987).

    Article  CAS  Google Scholar 

  16. Ishida, K., Morino, T., Takagi, K. & Sukenaga, Y. Nucleic Acids Res. 15, 10051 (1987).

    Article  CAS  Google Scholar 

  17. Lee, B. J. et al. Molec. cell. Biol. 10, 1940–1949 (1990).

    Article  CAS  Google Scholar 

  18. Behne, D., Hilmert, H., Scheid, S., Gessner, H. & Elger, W. Biochim. biophys. Acta 966, 12–21 (1988).

    Article  CAS  Google Scholar 

  19. Behne, D., Scheid, S., Kyriakopoulos, A. & Hilmert, H. Biochim. biophys. Acta 1033, 219–225 (1990).

    Article  CAS  Google Scholar 

  20. Kohrle, J., Rasmussen, U., Rokos, H., Leonard, J. L. & Hesch, R. D. J. biol. Chem. 265, 6146–6154 (1990).

    CAS  PubMed  Google Scholar 

  21. Schoenmakers, C. H. H., Pigmans, I. G. A. J., Hawkins, H. C., Freedman, R. B. & Visser, T. J. Biochem. biophys. Res. Commun. 162, 857–866 (1989).

    Article  CAS  Google Scholar 

  22. Forstrom, J. W., Zakowski, J. J. & Tappel, A. L. Biochemistry 17, 2639–2644 (1978).

    Article  CAS  Google Scholar 

  23. Chaudiere, J. & Tappel, A. L. J. inorg. Biochem. 20, 313–325 (1984).

    Article  CAS  Google Scholar 

  24. Tappel, A. L. Curr. Top. Cell Reg. 24, 87–97 (1984).

    Article  CAS  Google Scholar 

  25. Visser, T. J., Frank, S. & Leonard, J. L. Molec. cell. Endocr. 33, 321–327 (1983).

    Article  CAS  Google Scholar 

  26. Devereux, J., Haeberli, P. & Smithies, O. Nucleic Acids Res. 12, 387–395 (1984).

    Article  CAS  Google Scholar 

  27. Boada, R. J., Campbell, D. A. & Chopra, I. J. Biochem. biophys. Res. Commun. 155, 1297–1304 (1988).

    Article  Google Scholar 

  28. Oppenheimer, J. H., Schwartz, H. L. & Surks, M. I. J. clin. Invest. 51, 2493–2497 (1972).

    Article  CAS  Google Scholar 

  29. Frumess, R. D. & Larsen, P. R. Metabolism 24, 547–554 (1975).

    Article  CAS  Google Scholar 

  30. Gubler, U. & Hoffman, B. Gene 25, 263–269 (1983).

    Article  CAS  Google Scholar 

  31. Sanger, F., Nicklen, S. & Coulson, A. R. Proc. natn. Acad. Sci. U.S.A. 74, 5463–5467 (1977).

    Article  ADS  CAS  Google Scholar 

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Berry, M., Banu, L. & Larsen, P. Type I iodothyronine deiodinase is a selenocysteine-containing enzyme. Nature 349, 438–440 (1991). https://doi.org/10.1038/349438a0

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