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D. A. Lysek, C. Schorn, L. G. Nivon, V. Esteve-Moya, B. Chris-ten, L. Calzolai, C. Von Schroetter, F. Fiorito, T. Herrmann, P. Guntert and K. (2005) Wuthrich, Prion protein NMR structure of cats, dogs, pigs and sheep. Proceedings of the National Academy of Sciences of the United States of America, 102: 640-645.

has been cited by the following article:

• TITLE: Computer-Assisted analysis of subcellular localization signals and post-translational modifications of human prion proteins

  AUTHORS: Fatemeh Moosawi, Hassan Mohabatkar

  KEYWORDS: Prion protein; Subcellular localization; Signal peptides; Post-translational Modifications; Bioinformatics

  JOURNAL NAME: Journal of Biomedical Science and Engineering, Vol.2 No.1, February 13, 2009

  ABSTRACT: In the present work, computational analyses were applied to study the subcellular localiza-tion and posttranslational modifications of hu-man prion proteins (PrPs). The tentative location of prion protein was determined to be in the nu-cleolus inside the nucleus by the following bio-informatics tools: Hum-PLoc, Euk-PLoc and Nuc-PLoc. Based on our results signal peptides with average of 22 base pairs in N-terminal were identified in human PrPs. This theoretical study demonstrates that PrP is post-translationally modified by: 1) attachment of two N-linked complex carbohydrate moieties (N181 and N197), 2) attachmet of glycosylphosphatidylinositol (GPI) at serine 230 and 3) formation of two di-sulfide bonds between “6–22” and “179–214” cysteines. Furthermore, ten protein kinase phosphorylation sites were predicted in human PrP. The above-noted phosphorylation was car-ried out by PKC and CK2. By using bioinfor-matics tools, we have shown that computation-ally human PrPs locate particularly into the nu-cleolus.