Transcriptional Activators Stimulate DNA Repair
نویسندگان
چکیده
منابع مشابه
Transcriptional Activators of Human Genes with Programmable DNA-Specificity
TAL (transcription activator-like) effectors are translocated by Xanthomonas bacteria into plant cells where they activate transcription of target genes. DNA target sequence recognition occurs in a unique mode involving a central domain of tandem repeats. Each repeat recognizes a single base pair in a contiguous DNA sequence and a pair of adjacent hypervariable amino acid residues per repeat sp...
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Transcription factors are often targeted for rapid degradation by the ubiquitin-proteasome system. Recent evidence points to a correlation between the potency and instability of transcriptional activators, suggesting a possible direct role for ubiquitin-dependent proteolysis in transcriptional activation.
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A longstanding quest of developmental biology has been to understand the molecular switches that determine which sets of genes are expressed in selected differentiated cell types. Since regulation of gene expression is predominantly at the level of mRNA synthesis (reviewed in Ref. 1), the problem initially becomes one of defining the protein factors that establish and maintain a gene in a trans...
متن کاملTranscriptional activators in yeast
Eukaryotic transcription activation domains (ADs) are not well defined on the proteome scale. We systematicallly tested approximately 6000 yeast proteins for transcriptional activity using a yeast one-hybrid system and identified 451 transcriptional activators. We then determined their transcription activation strength using fusions to the Gal4 DNA-binding domain and a His3 reporter gene which ...
متن کاملKeeping Transcriptional Activators under Control
Transcriptional activators need to be modulated and eventually switched off after the initial event that triggers their activation. Here, we discuss how ubiquitination of activators and their proteasome-mediated turnover are crucial steps in this process.
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ژورنال
عنوان ژورنال: Molecular Cell
سال: 2002
ISSN: 1097-2765
DOI: 10.1016/s1097-2765(02)00732-3