What does polysome mean?

Definitions for polysome
ˈpɒl iˌsoʊmpo·lysome

This dictionary definitions page includes all the possible meanings, example usage and translations of the word polysome.


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Wiktionary

  1. polysomenoun

    a polyribosome

Wikipedia

  1. Polysome

    A polyribosome (or polysome or ergosome) is a group of ribosomes bound to an mRNA molecule like “beads” on a “thread”. It consists of a complex of an mRNA molecule and two or more ribosomes that act to translate mRNA instructions into polypeptides. Originally coined "ergosomes" in 1963, they were further characterized by Jonathan Warner, Paul M. Knopf, and Alex Rich. Polysomes are formed during the elongation phase when ribosomes and elongation factors synthesize the encoded polypeptide. Multiple ribosomes move along the coding region of mRNA, creating a polysome. The ability of multiple ribosomes to function on an mRNA molecule explains the limited abundance of mRNA in the cell. Polyribosome structure differs between prokaryotic polysomes, eukaryotic polysomes, and membrane bound polysomes. Polysome activity can be used to measure the level of gene expression through a technique called polysomal profiling.

Wikidata

  1. Polysome

    Polyribosomes also known as ergosomes are a cluster of ribosomes, bound to a mRNA molecule, first discovered and characterized by Jonathan Warner, Paul Knopf, and Alex Rich in 1963. Many ribosomes read one mRNA simultaneously, progressing along the mRNA to synthesize the same protein. They may appear as clusters, linear polysomes, or circular rosettes on microscopy, but mainly circular in vivo. This circularization is aided by the fact that mRNA is able to be twisted into a circular formation, creating a cycle of rapid ribosome recycling, and utilization of ribosomes. The 5' 7-methylguanosine cap and 3' poly tail present on eukaryotic mRNA aid in this process. Polyribosomes can be found in three forms: free, cytoskeletal bound, and membrane bound.

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Numerology

  1. Chaldean Numerology

    The numerical value of polysome in Chaldean Numerology is: 2

  2. Pythagorean Numerology

    The numerical value of polysome in Pythagorean Numerology is: 3


Translations for polysome

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"polysome." Definitions.net. STANDS4 LLC, 2024. Web. 28 Mar. 2024. <https://www.definitions.net/definition/polysome>.

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