The Phosphorylation of Ribosomal Protein in Lemna minor

AUTOR(ES)

Trewavas, A.

RESUMO

Sterile cultures of Lemna minor have been labeled with 32P1, and the ribosomal proteins have been examined for radioactivity. In relatively short term labeling a radioactive protein was found which ran as a single component in both urea/acetic acid and sodium lauryl sulfate gel electrophoresis. Acid hydrolysis of the labeled protein permitted the isolation of serine phosphate. After labeling to equilibrium with 32P1, calculation indicated only 0.6 to 0.75 atom of this protein phosphorus per ribosome.

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