Abstract
ßarrestins are molecular scaffolds that can bring together three-component mitogen-activated protein kinase signalling modules to promote signal compartmentalisation. We use peptide array technology to define novel interfaces between components within the c-Jun N-terminal kinase (JNK)/ßarrestin signalling complex. We show that ßarrestin 1 and ßarrestin 2 associate with JNK3 via the kinase N-terminal domain in a region that, surprisingly, does not harbour a known 'common docking' motif. In the N-domain and C-terminus of ßarrestin 1 and ßarrestin 2 we identify two novel apoptosis signal-regulating kinase 1 binding sites and in the N-domain of the ßarrestin 1 and ßarrestin 2 we identify a novel MKK4 docking site. Structured summary: MINT-7263196, MINT-7263175: Arrestin beta-2 (uniprotkb:P32121) binds (MI:0407) to ASK1 (uniprotkb:Q99683) by peptide array (MI:0081). MINT-7263136: JNK3 (uniprotkb:P53779) binds (MI:0407) to Arrestin beta-1 (uniprotkb:P49407) by peptide array (MI:0081). MINT-7263161: JNK3 (uniprotkb:P53779) binds (MI:0407) to Arrestin beta-2 (uniprotkb:P32121) by peptide array (MI:0081). MINT-7263304: Arrestin beta-1 (uniprotkb:P49407) physically interacts (MI:0915) with ASK1 (uniprotkb:Q99683) by anti tag coimmunoprecipitation (MI:0007). MINT-7263286: Arrestin beta-2 (uniprotkb:P32121) binds (MI:0407) to MKK4 (uniprotkb:P45985) by peptide array (MI:0081). MINT-7263231, MINT-7263254: Arrestin beta-1 (uniprotkb:P49407) binds (MI:0407) to ASK1 (uniprotkb:Q99683) by peptide array (MI:0081). MINT-7263269: Arrestin beta-1 (uniprotkb:P49407) binds (MI:0407) to MKK4 (uniprotkb:P45985) by peptide array (MI:0081). © 2009 Federation of European Biochemical Societies.
Original language | English |
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Pages (from-to) | 3310-3316 |
Number of pages | 7 |
Journal | FEBS Letters |
Volume | 583 |
Issue number | 20 |
DOIs | |
Publication status | Published - 20 Oct 2009 |
Keywords
- Arrestin
- ASK1
- JNK
- MKK4
- Peptide array
- Scaffold