Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-1915
Uelhoff, A; Tatzelt, J; Aguzzi, A; Winklhofer, K F; Haass, C (2005). A pathogenic PrP mutation and doppel interfere with polarized sorting of the prion protein. Journal of Biological Chemistry, 280(7):5137-5140.
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Several proteins linked to neurodegenerative diseases, such as the beta-amyloid precursor protein, amyloid beta-peptide, beta-secretase, and tau, undergo selective polarized sorting. We investigated polarized sorting of the mammalian prion protein (PrP(C)) and its homologue doppel (Dpl). In contrast to Dpl, which accumulates on the apical surface, PrP(C) is targeted selectively to the basolateral side in Madin-Darby canine kidney cells. An extensive deletion and domain swapping analysis revealed that the internal hydrophobic domain (HD) of PrP (amino acids 113-133) confers basolateral sorting in a dominant manner. PrP mutants lacking the HD are sorted apically, while Dpl chimeras containing the HD of PrP are directed to the basolateral membrane. Furthermore, a pathogenic PrP missense mutation within the HD leads to aberrant apical sorting of PrP as well.
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|Item Type:||Journal Article, refereed|
|Communities & Collections:||04 Faculty of Medicine > University Hospital Zurich > Institute of Neuropathology|
|DDC:||570 Life sciences; biology
610 Medicine & health
|Date:||18 February 2005|
|Deposited On:||11 Feb 2008 12:26|
|Last Modified:||28 Nov 2013 01:23|
|Publisher:||American Society for Biochemistry and Molecular Biology|
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