Molecular and Cellular Biochemistry

, Volume 76, Issue 2, pp 141–146 | Cite as

Involvement of lysine and arginine residues in the binding of yeast ribosomal protein YL3 to 5S RNA

  • Agustín Vioque
  • Francisco Hernández
  • Enrique Palacián
Original Article


The contribution of lysine and arginine residues to the formation of yeast ribonucleoprotein complex 5S RNA. protein YL3 has been investigated by determining the effects on complex formation of modification with chemical reagents specific for either lysine or arginine. Treatment of protein YL3 with acetic anhydride, malefic anhydride or phenylglyoxal is accompanied by loss of its capacity to bind to 5S RNA. This effect is accomplished by modification with phenylglyoxal of only 3 arginine residues per YL3 molecule. In contrast, a large number of protein YL3 amino groups [16] must be modified by acetic anhydride to prevent complex formation.

Key words

ribosomal protein YL3 5S RNA lysine residues arginine residues yeast ribosomes 


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Copyright information

© Martinus Nijhoff Publishers 1987

Authors and Affiliations

  • Agustín Vioque
    • 1
  • Francisco Hernández
    • 1
  • Enrique Palacián
    • 1
  1. 1.Centro de Biología MolecularConsejo Superior de Investigaciones Científicas and Universidad Autónoma de MadridMadridSpain

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