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Polysome


Polysomes
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Nonsense-Mediated mRNA Decay
Nonstop mRNA Decay ...
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Polysome
An mRNA molecule that is in the process of being translated by multiple ribosomes simultaneously.
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polysome Two or more ribosomes connected by a molecule of messenger RNA.
polytene chromosomes Chromosomes in the somatic cells of some insects in which the chromatin replicates repeatedly without undergoing mitosis.
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Polysome: Complex of mRNA and several ribosomes.
Post-transcriptional regulation: Any process occurring after transcription which affects the amount of protein a gene produces.
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polyribosomes (polysomes) - mRNA molecule to which are attached a number ofribosomes engaged in protein synthesis.
primosome - unit formed on the lagging strand comprised of a primase molecule and helicase ...
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polyribosome (polysome) A complex of an mRNA molecule and many ribosomes. polysaccharide A linear or branched polymer of monosaccharide units linked by glycosidic bonds. polysome (polyribosome) A complex of an mRNA molecule and many ribosomes.
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Often many ribosomes will read the same message, a structure known as a polysome forms. In this way a cell may rapidly make many proteins.
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Several ribosomes may be attached to a strand of mRNA forming a unit called a polysome.
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Several free ribosomes can associate on a single mRNA molecule to form a polyribosome or polysome. Free ribosomes usually produce proteins that are used in the cytosol or in the organelle they occur in.
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so mRNA can be translated while it is still being transcribed. The translation is said to be polyribosomal when there is more than one active ribosome. In this case, the collection of ribosomes working at the same time is referred to as a 'polysome'.
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