Click here to close Hello! We notice that you are using Internet Explorer, which is not supported by Echinobase and may cause the site to display incorrectly. We suggest using a current version of Chrome, FireFox, or Safari.
Echinobase
ECB-ART-31309
Mol Cell Biol 1992 Feb 01;122:650-60. doi: 10.1128/mcb.12.2.650-660.1992.
Show Gene links Show Anatomy links

Characterization of two developmentally regulated sea urchin U2 small nuclear RNA promoters: a common required TATA sequence and independent proximal and distal elements.

Stefanovic B , Marzluff WF .


???displayArticle.abstract???
The promoters of two U2 small nuclear RNA genes isolated from the sea urchin Lytechinus variegatus were mapped by microinjection of genes into sea urchin zygotes. One gene, LvU2E, is expressed only in oocytes and embryos and is found in a tandemly repeated gene set, while the other gene, LvU2L, is a single-copy gene and is expressed in embryos and somatic cells. The promoters each contain a TATA sequence at -25 which is required for expression, a proximal sequence element (PSE) centered at -55 required for expression, a sequence at -100 which couples the core promoter (PSE plus TATA box) to the upstream element, and an upstream sequence which stimulates expression fourfold. The PSE together with the TATA sequence is sufficient to determine the transcription start site. There is no sequence similarity between the -100 and PSE sequences of the two genes. The -100 sequences can be interchanged between the two genes. The LvU2E PSE functions in the context of the LvU2L gene, but the LvU2L PSE functions poorly in the context of the LvU2E gene.

???displayArticle.pubmedLink??? 1732737
???displayArticle.pmcLink??? PMC364254
???displayArticle.link??? Mol Cell Biol
???displayArticle.grants??? [+]

Genes referenced: LOC100887844 LOC583082

References [+] :
Ares, Orientation-dependent transcriptional activator upstream of a human U2 snRNA gene. 1985, Pubmed