The +4G site in Kozak consensus is not related to the efficiency of translation initiation.

The optimal context for translation initiation in mammalian species is GCCRCCaugG (where R = purine and "aug" is the initiation codon), with the -3R and +4G being particularly important. The presence of +4G has been interpreted as necessary for efficient translation initiation. Accumulated...

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Bibliographic Details
Main Author: Xuhua Xia
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2007-01-01
Series:PLoS ONE
Online Access:http://europepmc.org/articles/PMC1781341?pdf=render