lin-4 and the NRDE pathway are required to activate a transgenic lin-4 reporter but not the endogenous lin-4 locus in C. elegans
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چکیده
منابع مشابه
lin-4 and the NRDE pathway are required to activate a transgenic lin-4 reporter but not the endogenous lin-4 locus in C. elegans
As the founding member of the microRNA (miRNA) gene family, insights into lin-4 regulation and function have laid a conceptual foundation for countless miRNA-related studies that followed. We previously showed that a transcriptional lin-4 reporter in C. elegans was positively regulated by a lin-4-complementary element (LCE), and by lin-4 itself. In this study, we sought to (1) identify addition...
متن کاملThe C. elegans heterochronic gene lin-4 encodes small RNAs with antisense complementarity to lin-14.
lin-4 is essential for the normal temporal control of diverse postembryonic developmental events in C. elegans. lin-4 acts by negatively regulating the level of LIN-14 protein, creating a temporal decrease in LIN-14 protein starting in the first larval stage (L1). We have cloned the C. elegans lin-4 locus by chromosomal walking and transformation rescue. We used the C. elegans clone to isolate ...
متن کاملThe lin-4 microRNA
MicroRNAs (miRNAs) are full of surprises. The more we study these ~22-nucleotide non-coding RNAs, the more we realize how little is understood about this mode of gene regulation. 1 Case in point: lin-4, the founding member of the miRNA superfamily discovered over 20 years ago. Thousands of miRNAs have since been discovered in plant, animal, and viral genomes. They direct important cellular proc...
متن کاملInvestigation of lin-4 independent regulation of lin-28 in the C. elegans heterochronic
developmental timing pathway. (1) SPECIFIC AIMS Appropriate temporal patterning is essential for embryogenesis and post-embryonic development. Progression through the four larval stages in C. elegans is regulated by 'heterochronic' genes (reviewed in Slack and Ruvkun 1997; Ambros 2000). Heterochronic genes encode a diverse set of proteins, mutations in which result in the reiteration or omissio...
متن کاملPosttranscriptional regulation of the heterochronic gene lin-14 by lin-4 mediates temporal pattern formation in C. elegans.
During C. elegans development, the temporal pattern of many cell lineages is specified by graded activity of the heterochronic gene Lin-14. Here we demonstrate that a temporal gradient in Lin-14 protein is generated posttranscriptionally by multiple elements in the lin-14 3'UTR that are regulated by the heterochronic gene Lin-4. The lin-14 3'UTR is both necessary and sufficient to confer lin-4-...
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ژورنال
عنوان ژورنال: PLOS ONE
سال: 2018
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0190766