Enhancers
نویسندگان
چکیده
منابع مشابه
Genetic enhancers.
A genetic enhancer is a mutation in one gene that intensifies the phenotype caused by a mutation in another gene. The phenotype of the double mutant is much stronger than the summation of the single mutant phenotypes. The isolation of enhancers can lead to the identification of interacting genes, including genes that act redundantly with respect to each other. Examples in Caenorhabditis elegans...
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Enhancers: Transcriptional enhancers are DNA sequences that control expression of nearby genes and direct tissue-specific, positive regulation of those genes (Karp, 2002; Griffiths, et al., 2002). The general mode of action of these sequences is that they associate with specific activator proteins (that are found in only certain tissues); this association of enhancer and activator facilitates t...
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Transcriptional enhancers are short (200-1500 base pairs) DNA segments that are able to dramatically boost transcription from the promoter of a target gene. Originally discovered in simian virus 40 (SV40), a small DNA virus, transcription enhancers were soon also found in immunoglobulin genes and other cellular genes as key determinants of cell-type-specific gene expression. Enhancers can exert...
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ژورنال
عنوان ژورنال: Transcription
سال: 2011
ISSN: 2154-1264,2154-1272
DOI: 10.4161/trns.2.5.17712