Translational Control Mechanisms of Chloroplast Gene Expression
نویسندگان
چکیده
منابع مشابه
Translational regulations as specific traits of chloroplast gene expression.
Studies of protein synthesis in the chloroplast compartment have revealed a unique combination of translational autoregulations and trans-regulations due to the delivery of a variety of nuclear factors that act post-transcriptionally. We show how these two characteristics concur to set the major step in the regulation of chloroplast gene expression at the translational level, leading to a surpr...
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Chloroplasts contain their own genome, organized as operons, which are generally transcribed as polycistronic transcriptional units. These primary transcripts are processed into smaller RNAs, which are further modified to produce functional RNAs. The RNA processing mechanisms remain largely unknown and represent an important step in the control of chloroplast gene expression. Such mechanisms in...
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In the past decade, translational control has been shown to be crucial in the regulation of gene expression. Research in this field has progressed rapidly, revealing new control mechanisms and adding constantly to the list of translationally regulated genes. There is accumulating evidence that translational control plays a primary role in cell-cycle progression and cell differentiation, as well...
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Hypoxia has recently been shown to activate the endoplasmic reticulum kinase PERK, leading to phosphorylation of eIF2alpha and inhibition of mRNA translation initiation. Using a quantitative assay, we show that this inhibition exhibits a biphasic response mediated through two distinct pathways. The first occurs rapidly, reaching a maximum at 1-2 h and is due to phosphorylation of eIF2alpha. Con...
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Mechanisms of Control ofGene Expression is a collection of brief papers presented at the UCLA Symposia on Molecular and Cellular Biology in 1987. The papers are organized into five chapters covering several areas of current molecular genetic research: gene regulation in prokaryotes, gene regulation in eukaryotes (transcriptional control and DNA-protein interactions), mRNA splicing and regulatio...
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ژورنال
عنوان ژورنال: Nippon Nōgeikagaku Kaishi
سال: 1997
ISSN: 0002-1407,1883-6844
DOI: 10.1271/nogeikagaku1924.71.1180