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polyribosome

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polyribosome /poly·ri·bo·some/ (-ri´bo-sōm) a cluster of ribosomes connected with messenger RNA; they play a role in peptide synthesis.
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Schematic diagram of polyribosomes synthesizing nascent polypeptide chains from a messenger RNA (mRNA) template, the direction proceeding 5′ to 3′.

pol·y·ri·bo·some (pl-rb-sm)
n.
A cluster of ribosomes connected by a strand of mRNA and functioning as a unit in protein synthesis. Also called polysome.

polyribosome.
See polysome.

polyribosome [pol″e-ri´bo-sōm]
a cluster of ribosomes connected with messenger RNA; they play a role in peptide synthesis.

polyribosome
a cluster of ribosomes connected with messenger RNA; they are formed for the translation of mRNA to proteins. See also ribosome.


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Export proteins are synthesized on polyribosomes bound to the rough endoplasmic reticulum of the hepatocyte; in contrast, protein destined for intracellular use are synthesized on free rather than bound polyribosome (Podolsky and Isselbacher, 1991).
Peripheral blood mononuclear cells stimulated with C5a or lipopolysaccharide to synthesize equivalent levels of IL-1[beta] mRNA show unequal IL-1[beta] protein accumulation but similar polyribosome profile.
 
 
 
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