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Journal ArticleDOI

The power of the 3' UTR: Translational control and development

Scott Kuersten, +1 more
- 01 Aug 2003 - 
- Vol. 4, Iss: 8, pp 626-637
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TLDR
Although the early embryo is rife with translational control, controlling mRNA activity is also important in other developmental processes, such as stem-cell proliferation, sex determination, neurogenesis and erythropoiesis.
Abstract
Many crucial decisions, such as the location and timing of cell division, cell-fate determination, and embryonic axes establishment, are made in the early embryo, a time in development when there is often little or no transcription. For this reason, the control of variation in gene expression in the early embryo often relies on post-transcriptional control of maternal genes. Although the early embryo is rife with translational control, controlling mRNA activity is also important in other developmental processes, such as stem-cell proliferation, sex determination, neurogenesis and erythropoiesis.

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Journal ArticleDOI

MicroRNAs: Genomics, Biogenesis, Mechanism, and Function

TL;DR: Although they escaped notice until relatively recently, miRNAs comprise one of the more abundant classes of gene regulatory molecules in multicellular organisms and likely influence the output of many protein-coding genes.
Journal ArticleDOI

Non-coding RNA

TL;DR: RNAs appear to comprise a hidden layer of internal signals that control various levels of gene expression in physiology and development, including chromatin architecture/epigenetic memory, transcription, RNA splicing, editing, translation and turnover.
Journal ArticleDOI

Systematic discovery of regulatory motifs in human promoters and 3′ UTRs by comparison of several mammals

TL;DR: In this article, a comparative analysis of the human, mouse, rat and dog genomes is presented to create a systematic catalogue of common regulatory motifs in promoters and 3' untranslated regions (3' UTRs).
Journal ArticleDOI

The genome sequence of the filamentous fungus Neurospora crassa

James E. Galagan, +77 more
- 24 Apr 2003 - 
TL;DR: A high-quality draft sequence of the N. crassa genome is reported, suggesting that RIP has had a profound impact on genome evolution, greatly slowing the creation of new genes through genomic duplication and resulting in a genome with an unusually low proportion of closely related genes.
Journal ArticleDOI

Molecular mechanisms of translational control

TL;DR: Translational control is widely used to regulate gene expression and is especially relevant in situations where transcription is silent or when local control over protein accumulation is required as mentioned in this paper. But only a few examples of translational regulation are mechanistically understood.
References
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Journal ArticleDOI

The C. elegans heterochronic gene lin-4 encodes small RNAs with antisense complementarity to lin-14

TL;DR: Two small lin-4 transcripts of approximately 22 and 61 nt were identified in C. elegans and found to contain sequences complementary to a repeated sequence element in the 3' untranslated region (UTR) of lin-14 mRNA, suggesting that lin- 4 regulates lin- 14 translation via an antisense RNA-RNA interaction.
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The 21-nucleotide let-7 RNA regulates developmental timing in Caenorhabditis elegans

TL;DR: It is shown that let-7 is a heterochronic switch gene that encodes a temporally regulated 21-nucleotide RNA that is complementary to elements in the 3′ untranslated regions of the heteroch chronic genes lin-14, lin-28, Lin-41, lin -42 and daf-12, indicating that expression of these genes may be directly controlled by let- 7.
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An Abundant Class of Tiny RNAs with Probable Regulatory Roles in Caenorhabditis elegans

TL;DR: Two small temporal RNAs, lin-4 andlet-7, control developmental timing in Caenorhabditis elegans and are found to be members of a large class of 21- to 24-nucleotide noncodingRNAs, called microRNAs (miRNAs), which imply that, as a class, miRNAs have broad regulatory functions in animals.
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An Extensive Class of Small RNAs in Caenorhabditis elegans

TL;DR: Using bioinformatics and cDNA cloning, this work found 15 new miRNA genes in C. elegans that express small transcripts that vary in abundance during larval development, and three of them have apparent homologs in mammals and/or insects.
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