Endothelin-1 is a transcriptional target of p53 in epidermal keratinocytes and regulates UV induced melanocyte homeostasis

submitted by: arup.indra
Keratinocytes contribute to melanocyte activity by influencing their microenvironment, in part, through secretion of paracrine factors. Here we discovered that p53 directly regulates Edn1 expression in epidermal keratinocytes and controls UV-induced melanocyte homeostasis. Selective ablation of EDN1 in murine epidermis (EDN1ep-/-) does not alter melanocyte homeostasis in newborn skin but decreases dermal melanocytes in adult skin. Results showed that keratinocytic EDN1 in a non-cell...
Authors: Daniel J. Coleman, Gitali Ganguli-Indra, Stephen Hyter, Arup Indra, Steven Ma, Gary F. Merrill, Masashi Yanagisawa

Transfected Lysate (Denatured)

submitted by: abnova

Abnova - Transfected lysate is useful as a positive control in Western Blot. The full-length protein construct is expressed in HEK293T cells and prepared as ready-to-use, denatured lysate in 1x Sample Buffer. For more videos, visit Abnova!

Transfected Lysate (Native)

submitted by: abnova

Abnova - Transfected lysate is useful as a positive control in Western Blot. The full-length protein construct is expressed in HEK293T cells and prepared as ready-to-use, native lysate in modified RIPA Buffer. For more videos, visit Abnova!

Bioinformatic analyses of mammalian 5'-UTR sequence properties of mRNAs predicts alternative translation initiation sites

linked profile(s): jwegrzyn
submitted by: apryl
Background Utilization of alternative initiation sites for protein translation directed by non-AUG codons in mammalian mRNAs is observed with increasing frequency. Alternative initiation sites are utilized for the synthesis of important regulatory proteins that control distinct biological functions. It is, therefore, of high significance to define the parameters that allow accurate bioinformatic prediction of alternative translation initiation sites (aTIS). This...
Authors: Jill l Wegrzyn, Thomas m Drudge, Faramarz Valafar, Vivian Hook

Small Regulatory RNAs May Sharpen Spatial Expression Patterns

linked profile(s): hlevine
submitted by: apryl
The precise establishment of gene expression patterns is a crucial step in development. Formation of a sharp boundary between high and low spatial expression domains requires a genetic mechanism that exhibits sensitivity, yet is robust to fluctuations, a demand that may not be easily achieved by morphogens alone. Recently, it has been demonstrated that small RNAs (and, in particular, microRNAs) play many roles in embryonic development. Whereas some RNAs are essential for embryogenesis,...
Authors: Erel Levine, Peter Mchale, Herbert Levine