1.0Glossaryhttps://www.healthbenefitstimes.com/glossaryGlossaryhttps://www.healthbenefitstimes.com/glossary/author/adminglossary/Protein turnover - Definition of Protein turnoverrich600338<blockquote class="wp-embedded-content" data-secret="5QhpBmOEeL"><a href="https://www.healthbenefitstimes.com/glossary/protein-turnover/">Protein turnover</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.healthbenefitstimes.com/glossary/protein-turnover/embed/#?secret=5QhpBmOEeL" width="600" height="338" title="“Protein turnover” — Glossary" data-secret="5QhpBmOEeL" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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The breakdown and replacement of protein in the body.Protein turnover consists of two processes: synthesis and degradation. Synthesis is described in the preceding section. The proteins synthesized by the body have a finite existence. They are subject to a variety of insults and modifications. Some of these modifications have been listed, for example, a prohormone is converted to an active hormone; an enzyme is activated or inactivated with the addition or removal of a substituent and so forth. Thus, it is that a dynamic state within the body exists with respect to its full complement of peptides and proteins. Some proteins have very short lifetimes and very rapid turnover times; other proteins are quite stable and long lived. Their turnover time is quite long. The estimate of the life of a protein, that is, how long it will exist in the body, is its half- life. A half-life is the time interval that occurs when half of the amount of a compound synthesized at time X will have been degraded.