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Chromodomain-Helicase-DNA binding protein 8 (CHD8) is a member of a large family of eukaryotic ATP-dependent chromatin remodeling complexes. Loss of function alleles of human chd8 are correlated with autism spectrum disorder. The CHD subfamily members contain a tandem pair of chromodomains that are adjacent to a centrally located Snf2-like helicase domain. An alternatively spliced variant mRNA of...
Pigment cells of the zebrafish, Danio rerio, offer an exceptionally tractable system for studying the genetic and cellular bases of cell fate decisions. In the zebrafish, neural crest cells generate three types of pigment cells during embryogenesis: yellow xanthophores, iridescent iridophores and black melanophores. In this study, we present evidence for a model whereby melanophores and iridophores...
Promoters for vertebrate small nuclear RNA (snRNA) genes contain a relatively simple array of transcriptional control elements, divided into proximal and distal regions. Most of these genes are transcribed by RNA polymerase II (e.g., U1, U2), whereas the U6 gene is transcribed by RNA polymerase III. Previously identified vertebrate U6 snRNA gene promoters consist of a proximal sequence element (PSE)...
Aldehyde reductase is involved in the reductive detoxification of reactive aldehydes that can modify cellular macromolecules. To analyze the mechanism of basal regulation of aldehyde reductase expression, we cloned the murine gene and adjacent regulatory region and compared it to the human gene. The mouse enzyme exhibits substrate specificity similar to that of the human enzyme, but with a 2-fold...
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