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Polarizing genetic information in the egg: RNA localization in the frog oocyte

✍ Scribed by Mary Lou King; Yi Zhou; Mikhail Bubunenko

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 369 KB
Volume: 21
Category: Article
ISSN: 0265-9247
DOI: 10.1002/(sici)1521-1878(199907)21:7<546::aid-bies3>3.0.co;2-z

No coin nor oath required. For personal study only.

✦ Synopsis

RNA localization is a powerful strategy used by cells to localize proteins to subcellular domains and to control protein synthesis regionally. In germ cells, RNA targeting has profound implications for development, setting up polarities in genetic information that drive cell fate during embryogenesis. The frog oocyte offers a useful system for studying the mechanism of RNA localization. Here, we discuss critically the process of RNA localization during frog oogenesis. Three major pathways have been identified that are temporally and spatially separated in oogenesis. Each pathway uses a different mechanism to effect RNA localization. In some cases, localization elements within the 3' untranslated region have been identified and have provided unique insights into the localization process. This important field is still in its infancy, however, and much remains to be learned.

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