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Gillardon, F.* ; Kremmer, E. ; Froehlich, T.* ; Ueffing, M. ; Hengerer, B.* ; Gloeckner, C.J.

ATP-competitive LRRK2 inhibitors interfere with monoclonal antibody binding to the kinase domain of LRRK2 under native conditions. A method to directly monitor the active conformation of LRRK2?

J. Neurosci. Methods 214, 62-68 (2013)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
Mutations in leucine-rich repeat kinase 2 (LRRK2) are the most common genetic cause of Parkinson's disease. LRRK2 kinase activity is required for toxicity in neuronal cell cultures suggesting that selective kinase inhibitors may prevent neurodegeneration in patients. Directly monitoring LRRK2 activity in cells would be advantageous for the development of small molecule LRRK2 inhibitors. Here, we demonstrate that a monoclonal anti-LRRK2 antibody directed against the activation segment binds less efficiently to native LRRK2 protein in the presence of ATP-competitive LRRK2 inhibitors. Since kinase inhibitors prevent autophosphorylation and refolding of the activation segment, we hypothesize that the antibody preferentially binds to the active conformation of LRRK2 under native conditions.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords LRRK2; Kinase Domain ; Activation Segment ; Conformation ; Antibody ; Immunoprecipitation; Parkinsons-disease ; Cytoplasmic Localization ; Protein-kinases ; Leucine-rich-repeat-kinase-2 ; Autophosphorylation ; Phosphorylation ; Stability
ISSN (print) / ISBN 0165-0270
e-ISSN 1872-678X
Quellenangaben Volume: 214, Issue: 1, Pages: 62-68 Article Number: , Supplement: ,
Publisher Elsevier
Non-patent literature Publications
Reviewing status Peer reviewed