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A transcriptional activator is a protein (transcription factor) that increases transcription of a gene or set of genes. [1] Activators are considered to have positive control over gene expression, as they function to promote gene transcription and, in some cases, are required for the transcription of genes to occur.
The dCas9 activation system allows a desired gene or multiple genes in the same cell to be expressed. It is possible to study genes involved in a certain process using a genome wide screen that involves activating expression of genes. Examining which sgRNAs yield a phenotype suggests which genes are involved in a specific pathway.
Additionally, adding methyl groups to the SHP-1 gene (which reduces the amount of SHP-1 produced) has been linked to lymphoma (a type of blood cancer) . [43] However, SHP-1 may also promote JAK-STAT signalling. A study in 1997 found that SHP-1 potentially allows higher amounts of STAT activation, as opposed to reducing STAT activity. [44]
2034 13819 Ensembl ENSG00000116016 ENSMUSG00000024140 UniProt Q99814 P97481 RefSeq (mRNA) NM_001430 NM_010137 RefSeq (protein) NP_001421 NP_034267 Location (UCSC) Chr 2: 46.29 – 46.39 Mb Chr 17: 87.06 – 87.14 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Endothelial PAS domain-containing protein 1 (EPAS1, also known as hypoxia-inducible factor-2alpha (HIF-2α)) is a protein ...
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However, Hog domain-containing genes without a Hedge domain are present in several bilaterian lineages. They are found in Lophotrochozoa and Nematoda. [77] Hedgehog-like genes, 2 Patched homologs and Patched-related genes exist in the worm C. elegans. [78] [79] These genes have been shown to code for proteins that have roles in C. elegans ...
Tetracycline-controlled transcriptional activation is a method of inducible gene expression where transcription is reversibly turned on or off in the presence of the antibiotic tetracycline or one of its derivatives (e.g. doxycycline).
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