Incorporation of radioactive aminoacids into the proteins of bull spermatozoa

| March 22, 2015 | 0 Comments

P M BHARGAVA

Published in: Nature, 1957, 179, 1120-1121.

Abstract:

It is widely held that ribonucleic acid is directly involved in protein synthesis, and there have been several recent demonstrations of the necessity for the presence of ribonucleic acid during synthesis of proteins1. In view of this, it seemed to be of interest to examine protein turnover in mature, ejaculated spermatozoa, which apparently contain at most only traces of ribonucleic acid. Several investigators2-4, using different methods of analysis, (chromatography and ionophoresis of the bases and nucleotides, and estimation of ribose as furfural), have been unable to obtain the specific ribonucleic acid components from human and ram spermatozoa or from heads of fish spermatozoa. The absence of the acid from bull semen has been confirmed in the present investigation. These observations are supported also by cytochemical evidence5 .This report describes the results of preliminary experiments on the incorporation of 14C-labelled amino-acids into the proteins of bull spermatozoa and seminal plasma.

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Incorporation of radioactive aminoacids into the proteins of bull spermatozoa. P M BHARGAVA. Nature, 1957, 179, 1120-1121.

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