Regulation of protein synthesis in hen's oviducts. II. Extracellular ovalbumin as an inhibitor of ovalbumin synthesis in the oviducts.:II. Extracellular Ovalbumin as an Inhibitor of Ovalbumin Synthesis in the Oviducts

J-STAGE
  • NAKAYAMA Tatsuo
    Department of Chemistry, Faculty of Science, Nara Women's University
  • SUGAE Kinichi
    Department of Chemistry, Faculty of Science, Nara Women's University
  • NARITA Kozo
    Institute for Protein Research, Osaka University

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Description

Washed, preincubated minccd hen's oviducts, which contained low levels of extracellular and intracellular proteins, synthesized egg-white proteins actively. The addition of ovalbumin to the incubation medium resulted in inhibition of the synthesis of egg-white proteins by the washed, preincubated oviduct cells, while the addition of bovine serum albumin seemed to stimulate protein synthesis and hen's egg-white lysozyme had no effect. The inhibitory or stimulatory effect on protein synthesis was proportional to the amount of protein added to the medium. The inhibitory effect of added ovalbumin was shown not to be due to the incorporation of ovalbumin into the oviduct cells from the incubation medium. Egg-white proteins added to the medium also inhibited protein synthesis inside the cells and the extent of the inhibition appeared to correspond to the amount of ovalbumin present in egg-white.

Journal

  • J Biochem (Tokyo)

    J Biochem (Tokyo) 81 (6), 1803-1812, 1977

    The Japanese Biochemical Society

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