Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Dissection of the Regulatory Elements of the Complex Expression Pattern of Puckered, a Dual-Specificity JNK Phosphatase

Version 1 : Received: 7 September 2021 / Approved: 8 September 2021 / Online: 8 September 2021 (20:25:45 CEST)

How to cite: Karkali, K.; Martin-Blanco, E. Dissection of the Regulatory Elements of the Complex Expression Pattern of Puckered, a Dual-Specificity JNK Phosphatase. Preprints 2021, 2021090161 (doi: 10.20944/preprints202109.0161.v1). Karkali, K.; Martin-Blanco, E. Dissection of the Regulatory Elements of the Complex Expression Pattern of Puckered, a Dual-Specificity JNK Phosphatase. Preprints 2021, 2021090161 (doi: 10.20944/preprints202109.0161.v1).

Abstract

For developmental processes we know most of the gene networks controlling specific cell responses. We still have to determine how these networks cooperate and how signals become integrated. The JNK pathway is one of the key elements modulating cellular responses during development. Yet, we still know little on how the core components of the pathway interact with additional regulators or how this network modulates cellular responses in the whole organism in homeostasis or during tissue morphogenesis. We have performed a promoter analysis searching for potential regulatory sequences of puc and identified different specific enhancers directing gene expression in different tissues and at different developmental times. Remarkably, some of these domains respond to the JNK activity, but not all. Altogether, these analyses show that puc expression regulation is very complex and that JNK activities participate in non-previously known processes during the development of Drosophila.

Keywords

JNK; Drosophila; dual specificity phosphatase; gene expression

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