Maturation-specific polyadenylation and translational control: diversity of cytoplasmic polyadenylation elements, influence of poly(A) tail size, and formation of stable polyadenylation complexes.
نویسندگان
چکیده
منابع مشابه
Polyadenylation: A tail of two complexes
Recent studies have uncovered new connections between the enzymes of mRNA 3' end processing and RNA polymerase II. These connections improve the efficiency of polyadenylation and signal to the polymerase to terminate transcription; their discovery reveals another level of gene regulation.
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Cytoplasmic post-transcriptional modification of mRNA transcripts in the form of polyadenylated (poly(A)) tails plays a key role in their translational control. The timing and degree of polyadenylation has been shown to be due in part to a consensus nucleotide sequence -cytoplasmic polyadenylation elements (CPEs) which can be detected by a polyadenylation element binding protein (CPEB). An indi...
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Poly(A) tail elongation after export of an messenger RNA (mRNA) to the cytoplasm is called cytoplasmic polyadenylation. It was first discovered in oocytes and embryos, where it has roles in meiosis and development. In recent years, however, has been implicated in many other processes, including synaptic plasticity and mitosis. This review aims to introduce cytoplasmic polyadenylation with an em...
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Maternal mRNA translation is regulated in large part by cytoplasmic polyadenylation. This process, which occurs in both vertebrates and invertebrates, is essential for meiosis and body patterning. In spite of the evolutionary conservation of cytoplasmic polyadenylation, many of the cis elements and trans-acting factors appear to have some species specificity. With the recent isolation and cloni...
متن کاملFurther analysis of cytoplasmic polyadenylation in Xenopus embryos and identification of embryonic cytoplasmic polyadenylation element-binding proteins.
Early development in Xenopus laevis is programmed in part by maternally inherited mRNAs that are synthesized and stored in the growing oocyte. During oocyte maturation, several of these messages are translationally activated by poly(A) elongation, which in turn is regulated by two cis elements in the 3' untranslated region, the hexanucleotide AAUAAA and a cytoplasmic polyadenylation element (CP...
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ژورنال
عنوان ژورنال: Molecular and Cellular Biology
سال: 1990
ISSN: 0270-7306,1098-5549
DOI: 10.1128/mcb.10.11.5634