Chapter title |
Modulation of Protein Synthesis by Polyamines in Mammalian Cells
|
---|---|
Chapter number | 27 |
Book title |
Polyamines
|
Published in |
Methods in molecular biology, January 2018
|
DOI | 10.1007/978-1-4939-7398-9_27 |
Pubmed ID | |
Book ISBNs |
978-1-4939-7397-2, 978-1-4939-7398-9
|
Authors |
Keiko Kashiwagi, Yusuke Terui, Kazuei Igarashi |
Abstract |
Polyamines exist mainly as RNA-polyamine complexes in cells. Thus, we looked for proteins whose synthesis is enhanced by polyamines at the level of translation in mammalian cells. Here, we describe how synthesis of Cct2 (T-complex protein 1, β-subunit, a chaperonin assisting in the folding actin, tubulin, and several other proteins) and eEF1A (one of the elongation factors of protein synthesis) is stimulated by polyamines at the level of translation. Polyamines stimulated Cct2 synthesis through the stimulation of ribosome shunting during 5'-processive scanning of 40S ribosomal subunits from the m(7)G-cap to the initiation codon AUG, and eEF1A synthesis through the structural change of the unusual position of a complementary sequence to 18S rRNA in eEF1A mRNA. |
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