2ku6

From Proteopedia

(Difference between revisions)

Revision as of 08:25, 5 February 2020

Mouse Prion Protein (121-231) with mutations D167S and N173K

Structural highlights

2ku6 is a 1 chain structure with sequence from Lk3 transgenic mice. Full experimental information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	2ku4, 2ku5
Gene:	Prnp, Prn-p, Prp (LK3 transgenic mice)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Disease

[PRIO_MOUSE] Note=Found in high quantity in the brain of humans and animals infected with degenerative neurological diseases such as kuru, Creutzfeldt-Jakob disease (CJD), Gerstmann-Straussler syndrome (GSS), scrapie, bovine spongiform encephalopathy (BSE), transmissible mink encephalopathy (TME), etc.

Function

[PRIO_MOUSE] 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) (By similarity). 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.^[1] ^[2] ^[3] ^[4]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The NMR structure of the horse (Equus caballus) cellular prion protein at 25 degrees C exhibits the typical PrP(C) [cellular form of prion protein (PrP)] global architecture, but in contrast to most other mammalian PrP(C)s, it contains a well-structured loop connecting the beta2 strand with the alpha2 helix. Comparison with designed variants of the mouse prion protein resulted in the identification of a single amino acid exchange within the loop, D167S, which correlates with the high structural order of this loop in the solution structure at 25 degrees C and is unique to the PrP sequences of equine species. The beta2-alpha2 loop and the alpha3 helix form a protein surface epitope that has been proposed to be the recognition area for a hypothetical chaperone, "protein X," which would promote conversion of PrP(C) into the disease-related scrapie form and thus mediate intermolecular interactions related to the transmission barrier for transmissible spongiform encephalopathies (TSEs) between different species. The present results are evaluated in light of recent indications from in vivo experiments that the local beta2-alpha2 loop structure affects the susceptibility of transgenic mice to TSEs and the fact that there are no reports on TSE in horses.

Horse prion protein NMR structure and comparisons with related variants of the mouse prion protein.,Perez DR, Damberger FF, Wuthrich K J Mol Biol. 2010 Jul 9;400(2):121-8. Epub 2010 May 8. PMID:20460128^[5]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Mani K, Cheng F, Havsmark B, Jonsson M, Belting M, Fransson LA. Prion, amyloid beta-derived Cu(II) ions, or free Zn(II) ions support S-nitroso-dependent autocleavage of glypican-1 heparan sulfate. J Biol Chem. 2003 Oct 3;278(40):38956-65. Epub 2003 May 5. PMID:12732622 doi:10.1074/jbc.M300394200
↑ Steele AD, Emsley JG, Ozdinler PH, Lindquist S, Macklis JD. Prion protein (PrPc) positively regulates neural precursor proliferation during developmental and adult mammalian neurogenesis. Proc Natl Acad Sci U S A. 2006 Feb 28;103(9):3416-21. Epub 2006 Feb 21. PMID:16492732 doi:10.1073/pnas.0511290103
↑ Lauren J, Gimbel DA, Nygaard HB, Gilbert JW, Strittmatter SM. Cellular prion protein mediates impairment of synaptic plasticity by amyloid-beta oligomers. Nature. 2009 Feb 26;457(7233):1128-32. doi: 10.1038/nature07761. PMID:19242475 doi:10.1038/nature07761
↑ Singh A, Kong Q, Luo X, Petersen RB, Meyerson H, Singh N. Prion protein (PrP) knock-out mice show altered iron metabolism: a functional role for PrP in iron uptake and transport. PLoS One. 2009 Jul 1;4(7):e6115. doi: 10.1371/journal.pone.0006115. PMID:19568430 doi:10.1371/journal.pone.0006115
↑ Perez DR, Damberger FF, Wuthrich K. Horse prion protein NMR structure and comparisons with related variants of the mouse prion protein. J Mol Biol. 2010 Jul 9;400(2):121-8. Epub 2010 May 8. PMID:20460128 doi:10.1016/j.jmb.2010.04.066

1 Structural highlights
2 Disease
3 Function
4 Evolutionary Conservation
5 Publication Abstract from PubMed
6 See Also
7 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2ku6"

@@ Line 1: / Line 1: @@
 ==Mouse Prion Protein (121-231) with mutations D167S and N173K==
-<StructureSection load='2ku6' size='340' side='right' caption='[[2ku6]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
+<StructureSection load='2ku6' size='340' side='right'caption='[[2ku6]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[2ku6]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Lk3_transgenic_mice Lk3 transgenic mice]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2KU6 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2KU6 FirstGlance]. <br>
@@ Line 33: / Line 33: @@
 ==See Also==
-*[[Prion|Prion]]
+*[[Prion 3D structures|Prion 3D structures]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
+[[Category: Large Structures]]
 [[Category: Lk3 transgenic mice]]
 [[Category: Damberger, F F]]

2ku6

From Proteopedia

Revision as of 08:25, 5 February 2020

Mouse Prion Protein (121-231) with mutations D167S and N173K

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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