5l6r

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== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/PRIO_HUMAN PRIO_HUMAN]] May play a role in neuronal development and synaptic plasticity. May be required for neuronal myelin sheath maintenance. May play a role in iron uptake and iron homeostasis. Soluble oligomers are toxic to cultured neuroblastoma cells and induce apoptosis (in vitro). Association with GPC1 (via its heparan sulfate chains) targets PRNP to lipid rafts. Also provides Cu(2+) or ZN(2+) for the ascorbate-mediated GPC1 deaminase degradation of its heparan sulfate side chains (By similarity).<ref>PMID:12732622</ref> <ref>PMID:19936054</ref> <ref>PMID:20564047</ref>
[[http://www.uniprot.org/uniprot/PRIO_HUMAN PRIO_HUMAN]] May play a role in neuronal development and synaptic plasticity. May be required for neuronal myelin sheath maintenance. May play a role in iron uptake and iron homeostasis. Soluble oligomers are toxic to cultured neuroblastoma cells and induce apoptosis (in vitro). Association with GPC1 (via its heparan sulfate chains) targets PRNP to lipid rafts. Also provides Cu(2+) or ZN(2+) for the ascorbate-mediated GPC1 deaminase degradation of its heparan sulfate side chains (By similarity).<ref>PMID:12732622</ref> <ref>PMID:19936054</ref> <ref>PMID:20564047</ref>
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== Publication Abstract from PubMed ==
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In the brain of patients with transmissible spongiform encephalopathies, besides PrPSc aggregates, deposition of truncated PrP molecules was described. Jansen et al. reported two clinical cases with deposition of C-terminally truncated PrP, one of them ending with Tyr226. We have previously described the discovery of monoclonal antibody V5B2 that selectively recognizes this version of the prion protein, which we called PrP226*. Using monoclonal antibody V5B2 we showed that accumulation of PrP226* is characteristic for most types of human and animal TSEs. Its distribution correlates to the distribution of PrPSc aggregates. To gain insight into the structural basis of its presence and distribution in PrP aggregates, we have determined the NMR structure of recombinant PrP226*. The structure of the protein consists of a disordered N-terminal part (residues 90-125) and a structured C-terminal part (residues 126-226). The C-terminal segment consists of four alpha-helices and a short antiparallel beta-sheet. Our model predicts a break in the C-terminal helix and reorganized hydrophobic interactions between helix alpha3 and beta2-alpha2 loop due to the shorter C-terminus. The structural model gives information on the possible role of the protein in the development of amyloid disease and can serve as a foundation to develop tools for prevention and treatment of prion diseases.
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Truncated prion protein PrP226* - A structural view on its role in amyloid disease.,Kovac V, Zupancic B, Ilc G, Plavec J, Curin Serbec V Biochem Biophys Res Commun. 2017 Jan 19. pii: S0006-291X(17)30127-4. doi:, 10.1016/j.bbrc.2017.01.078. PMID:28109886<ref>PMID:28109886</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
== References ==
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Revision as of 11:08, 1 February 2017

PrP226* - Solution-state NMR structure of truncated human prion protein

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