Journal
BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH
Volume 1793, Issue 5, Pages 847-859Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.bbamcr.2009.01.013
Keywords
Protein kinase CK2; OSR1; ANTXR1; HDGF; EpsinR; Bnip3L
Categories
Funding
- European Commission [503467]
- Italian Cystic Fibrosis Research Foundation [4/2007]
- Banca Popolare di Verona a Novara
- Fondazione Giorgio Zanotto
- AIRC
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A weblogo has been generated from the sequences surrounding 433 Ser/Thr protein residues whose phosphorylation by protein kinase CK2 had been previously validated (bona fide CK2 phosphosites). This has been compared to the weblogo extracted from 2275 putative CK2 phosphosites displaying the motif pS/pT-x(1)-x(2)-D/E/pS (where x(1) not equal P) present in the human phosphoElm database including 10899 naturally occurring phosphosites. The two weblogos are strikingly similar supporting the notion that indeed the 2275 putative sites (accounting for 20.9% of the whole phosphoproteome they belong to), or at least the great majority of these are generated by CK2. This conclusion has been corroborated by the random validation of 8 of such putative CK2 sites (belonging to 5 different proteins) as real targets of CK2 in vitro and/or in cells, leading to the inclusion into the repertoire of bona fide CK2 targets of 5 new entries, namely: oxidative stress-responsive kinase-1, anthrax toxin receptor 1, hepatoma derived growth factor, EpsinR and BCL2/adenovirus El B 19 kDa protein-interacting protein 3-like. (C) 2009 Elsevier B.V. All rights reserved.
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