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Systematic screening of a Drosophila ORF library in vivo uncovers Wnt/Wg pathway components


Schertel, Claus; Huang, Dashun; Björklund, Mikael; Bischof, Johannes; Yin, Dingzi; Li, Rongxia; Wu, Yi; Zeng, Rong; Wu, Jiarui; Taipale, Jussi; Song, Haiyun; Basler, Konrad (2013). Systematic screening of a Drosophila ORF library in vivo uncovers Wnt/Wg pathway components. Developmental Cell, 25(2):207-219.

Abstract

We created a site-directed UAS-ORF library of 655 growth-regulating genes in Drosophila. This library represents a large collection of genes regulating cell cycle, cell size, and proliferation and will be a valuable resource for studying growth regulation in vivo. By using misexpression of genes, we prevent problems arising from genetic redundancy and can uncover novel gene functions. To validate the usefulness of this library, we screened for Wingless (Wg) pathway components. We used a combination of experimental and bioinformatic approaches to predict candidates and identified three serine/threonine kinases as regulators of Wg signaling. We show that one of these, Nek2, optimizes pathway response by direct phosphorylation of Dishevelled. In addition, we describe functional relations for roughly 5% of all Drosophila genes and identify a large number of genes that regulate cell size, proliferation, and final organ size upon misexpression.

Abstract

We created a site-directed UAS-ORF library of 655 growth-regulating genes in Drosophila. This library represents a large collection of genes regulating cell cycle, cell size, and proliferation and will be a valuable resource for studying growth regulation in vivo. By using misexpression of genes, we prevent problems arising from genetic redundancy and can uncover novel gene functions. To validate the usefulness of this library, we screened for Wingless (Wg) pathway components. We used a combination of experimental and bioinformatic approaches to predict candidates and identified three serine/threonine kinases as regulators of Wg signaling. We show that one of these, Nek2, optimizes pathway response by direct phosphorylation of Dishevelled. In addition, we describe functional relations for roughly 5% of all Drosophila genes and identify a large number of genes that regulate cell size, proliferation, and final organ size upon misexpression.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Molecular Life Sciences
Dewey Decimal Classification:570 Life sciences; biology
Language:English
Date:9 April 2013
Deposited On:26 Apr 2013 13:21
Last Modified:05 Apr 2016 16:46
Publisher:Cell Press (Elsevier)
ISSN:1534-5807
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.devcel.2013.02.019
PubMed ID:23583758

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