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1i4m
From Proteopedia
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|PDB= 1i4m |SIZE=350|CAPTION= <scene name='initialview01'>1i4m</scene>, resolution 2.00Å | |PDB= 1i4m |SIZE=350|CAPTION= <scene name='initialview01'>1i4m</scene>, resolution 2.00Å | ||
|SITE= | |SITE= | ||
| - | |LIGAND= <scene name='pdbligand=CD:CADMIUM+ION'>CD</scene> | + | |LIGAND= <scene name='pdbligand=CD:CADMIUM+ION'>CD</scene>, <scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene> |
|ACTIVITY= | |ACTIVITY= | ||
|GENE= | |GENE= | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1i4m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1i4m OCA], [http://www.ebi.ac.uk/pdbsum/1i4m PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1i4m RCSB]</span> | ||
}} | }} | ||
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==Overview== | ==Overview== | ||
The pathogenesis of transmissible encephalopathies is associated with the conversion of the cellular prion protein, PrP(C), into a conformationally altered oligomeric form, PrP(Sc). Here we report the crystal structure of the human prion protein in dimer form at 2 A resolution. The dimer results from the three-dimensional swapping of the C-terminal helix 3 and rearrangement of the disulfide bond. An interchain two-stranded antiparallel beta-sheet is formed at the dimer interface by residues that are located in helix 2 in the monomeric NMR structures. Familial prion disease mutations map to the regions directly involved in helix swapping. This crystal structure suggests that oligomerization through 3D domain-swapping may constitute an important step on the pathway of the PrP(C) --> PrP(Sc) conversion. | The pathogenesis of transmissible encephalopathies is associated with the conversion of the cellular prion protein, PrP(C), into a conformationally altered oligomeric form, PrP(Sc). Here we report the crystal structure of the human prion protein in dimer form at 2 A resolution. The dimer results from the three-dimensional swapping of the C-terminal helix 3 and rearrangement of the disulfide bond. An interchain two-stranded antiparallel beta-sheet is formed at the dimer interface by residues that are located in helix 2 in the monomeric NMR structures. Familial prion disease mutations map to the regions directly involved in helix swapping. This crystal structure suggests that oligomerization through 3D domain-swapping may constitute an important step on the pathway of the PrP(C) --> PrP(Sc) conversion. | ||
| - | |||
| - | ==Disease== | ||
| - | Known diseases associated with this structure: Creutzfeldt-Jakob disease OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=176640 176640]], Gerstmann-Straussler disease OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=176640 176640]], Huntington disease-like 1 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=176640 176640]], Insomnia, fatal familial OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=176640 176640]], Prion disease with protracted course OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=176640 176640]], Retinitis pigmentosa-11 OMIM:[[http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=606419 606419]] | ||
==About this Structure== | ==About this Structure== | ||
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[[Category: Swietnicki, W.]] | [[Category: Swietnicki, W.]] | ||
[[Category: Yee, V C.]] | [[Category: Yee, V C.]] | ||
| - | [[Category: CD]] | ||
| - | [[Category: CL]] | ||
[[Category: domain-swapped dimer]] | [[Category: domain-swapped dimer]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 21:14:33 2008'' |
Revision as of 18:14, 30 March 2008
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| , resolution 2.00Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | , | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Crystal structure of the human prion protein reveals a mechanism for oligomerization
Overview
The pathogenesis of transmissible encephalopathies is associated with the conversion of the cellular prion protein, PrP(C), into a conformationally altered oligomeric form, PrP(Sc). Here we report the crystal structure of the human prion protein in dimer form at 2 A resolution. The dimer results from the three-dimensional swapping of the C-terminal helix 3 and rearrangement of the disulfide bond. An interchain two-stranded antiparallel beta-sheet is formed at the dimer interface by residues that are located in helix 2 in the monomeric NMR structures. Familial prion disease mutations map to the regions directly involved in helix swapping. This crystal structure suggests that oligomerization through 3D domain-swapping may constitute an important step on the pathway of the PrP(C) --> PrP(Sc) conversion.
About this Structure
1I4M is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structure of the human prion protein reveals a mechanism for oligomerization., Knaus KJ, Morillas M, Swietnicki W, Malone M, Surewicz WK, Yee VC, Nat Struct Biol. 2001 Sep;8(9):770-4. PMID:11524679
Page seeded by OCA on Sun Mar 30 21:14:33 2008
