HYDRELZ

"Investigation of the O2-dependent function of HELZ, an RNA helicase interacting with the oxygen-sensing prolyl-4-hydroxylase PHD2"

Coordinatore	UNIVERSITAET ZUERICH    more  Organization address address: Raemistrasse 71 city: ZURICH postcode: 8006 contact info Titolo: Prof. Nome: Roland Cognome: Wenger Email: send email Telefono: +41 (0)44 63 55065 Fax: +41 (0)44 63 56814
Nazionalità Coordinatore	Switzerland [CH]
Totale costo	0 €
EC contributo	180˙801 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-IEF-2008
Funding Scheme	MC-IEF
Anno di inizio	2009
Periodo (anno-mese-giorno)	2009-11-01   -   2011-10-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	UNIVERSITAET ZUERICH  Organization address address: Raemistrasse 71 city: ZURICH postcode: 8006 contact info Titolo: Prof. Nome: Roland Cognome: Wenger Email: send email Telefono: +41 (0)44 63 55065 Fax: +41 (0)44 63 56814	CH (ZURICH)	coordinator	180˙801.44

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 Obiettivo del progetto (Objective)

'A crucial step in the adaptation of mammalian cells to oxygen deficiency is the transcriptional activation of hypoxia-inducible genes. Hypoxia-inducible transcription factors (HIFs) are master regulators for the up-regulation of these genes under physiological as well as pathophysiological conditions, such as tumor development and metastasis, cardiovascular diseases and inflammation. HIFs are O2-dependently hydroxylated at conserved prolyl residues by recently discovered prolyl-4-hydroxylase domain proteins (PHDs). Therefore, PHDs function as molecular oxygen sensors by determining the protein stability of HIFα subunits. Importantly, non-HIFα proteins have been reported to represent PHD hydroxylation substrates, indicating that O2-dependent prolyl hydroxylation might be a more common post-translational modification than previously expected. The aim of this grant application is to study the function of the RNA helicase HELZ that was identified to interact with PHD2. HELZ has been shown to be important for the function of SMYD3, a histone lysine methyltransferase which has been implicated in tumorigenesis. Preliminary data demonstrate O2-dependent regulation of HELZ protein abundance and suggest that HELZ might be a novel PHD2 hydroxylation substrate. The goal is to generate a conditional HELZ gene targeting model to characterize the O2-dependent function of HELZ in vivo and to investigate PHD2-dependent HELZ protein hydroxylation by mass spectrometry.'