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Lookup NU author(s): Dr Veronika Boczonadi
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Periplakin regulates keratin organisation and participates in the assembly of epidermal cornified envelopes. A proteomic approach identified annexin A9 as a novel interacting partner for periplakin N-terminus. The presence of annexin A9 in complexes with periplakin was confirmed by immunoblotting of proteins immunoprecipitated by anti-HA or anti-annexin A9 antibodies. Both endogenous and GFP-tagged annexin A9 co-localise with endogenous periplakin and transfected periplakin N-terminus at MCF-7 cell borders and aggregate after Okadaic acid treatment. Annexin A9 and periplakin co-localise in the epidermis and annexin A9 is up-regulated in differentiating keratinocytes, but the epidermal annexin A9 expression does not require periplakin.
Author(s): Boczonadi V, Määttä A
Publication type: Article
Publication status: Published
Journal: FEBS Letters
Print publication date: 21/09/2012
ISSN (print): 0014-5793
ISSN (electronic): 1873-3468
Publisher: Elsevier BV
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