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Mol Biol (Mosk). 2009 Sep-Oct;43(5):759-71.

[The origin of novel proteins by gene duplication: what is common in evolution of the color-sensitive pigment proteins and translation termination factors].

[Article in Russian]

Abstract

The review is discussing a role of duplications in evolution, including events from genes to genomes duplications. The important role of duplications is their participation in the block-modular reorganizations leading to a combination of fragments from various genes. Examples of gene duplications leading to occurrence of proteins with divergent functions are shown. For instance, human and Old World monkey trichromatic vision has arisen due to consecutive duplications of the genes encoding color-sensitive pigment proteins, and their subsequent divergence. Many proteins participating in regulation and the control of protein synthesis have resulted from series of gene duplications that has led to origin of modern translation elongation and termination factors. It is supposed, that proteins participating in the control of newly synthesized mRNA quality have arisen also due to duplication of the genes encoding ancient translation elongation factors. Their subsequent divergence has led to the origin of proteins with the new properties, but already unable to participate in the control of translation.

PMID:
19899624
[Indexed for MEDLINE]

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