These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Functional modification of liver form-B RNA polymerase activity by a protein fraction from rats accustomed to controlled feeding schedules.
    Author: Barbiroli B, Monti MG, Moruzzi MS, Mezzetti G.
    Journal: Biochim Biophys Acta; 1977 Nov 02; 479(1):69-79. PubMed ID: 911850.
    Abstract:
    A protein fraction extracted from the liver of rats accustomed to eating during the first 8 h of a daily 12 h dark period is able to increase homologous form-B RNA polymerase activity. When the protein factor is added to RNA polymerase extracted at the end of the daily fasted period (0.9:OOh) the sensitivity of enzyme to ionic strength is modified, and resembles that of the enzyme extracted during the eating period (15:00 h) either using liver deproteinized DNA or chromatin as template. The chromatin-bound RNA polymerase activity is also modified in the presence of the factor, showing a modification of enzyme sensitivity to ionic strength similar to the one induced by food intake.
    [Abstract] [Full Text] [Related] [New Search]