Important scaffold function of the Janus kinase 2 uncovered by a novel mouse model harboring a Jak2 activation-loop mutation

Author:

Keil Eric1,Finkenstädt David1,Wufka Christian1,Trilling Mirko2,Liebfried Pia1,Strobl Birgit3,Müller Mathias3,Pfeffer Klaus1

Affiliation:

1. Institute of Medical Microbiology and Hospital Hygiene, University of Düsseldorf, Düsseldorf, Germany;

2. Institute for Virology, University Hospital Essen, University Duisburg-Essen, Essen, Germany; and

3. Institute of Animal Breeding and Genetics/Biomodels Austria, University of Veterinary Medicine, Vienna, Austria

Abstract

Key Points Jak2 activation-loop–defective mutation results in partial interferon γ signaling, but Jak2 mutant mice die due to abolished EpoR signaling. Jak2 scaffold function mediates IFNGR complex integrity, activity, and physiological Jak1 localization.

Publisher

American Society of Hematology

Subject

Cell Biology,Hematology,Immunology,Biochemistry

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