1f41
From Proteopedia
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'''CRYSTAL STRUCTURE OF HUMAN TRANSTHYRETIN AT 1.5A RESOLUTION''' | '''CRYSTAL STRUCTURE OF HUMAN TRANSTHYRETIN AT 1.5A RESOLUTION''' | ||
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[[Category: Olofsson, A.]] | [[Category: Olofsson, A.]] | ||
[[Category: Sauer-Eriksson, A E.]] | [[Category: Sauer-Eriksson, A E.]] | ||
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Revision as of 12:52, 2 May 2008
CRYSTAL STRUCTURE OF HUMAN TRANSTHYRETIN AT 1.5A RESOLUTION
Overview
Self-assembly of the human plasma protein transthyretin (TTR) into unbranched insoluble amyloid fibrils occurs as a result of point mutations that destabilize the molecule, leading to conformational changes. The tertiary structure of native soluble TTR and many of its disease-causing mutants have been determined. Several independent studies by X-ray crystallography have suggested structural differences between TTR variants which are claimed to be of significance for amyloid formation. As these changes are minor and not consistent between the studies, we have compared all TTR structures available at the protein data bank including three wild-types, three non-amyloidogenic mutants, seven amyloidogenic mutants and nine complexes. The reference for this study is a new 1.5 A resolution structure of human wild-type TTR refined to an R-factor/R-free of 18.6 %/21.6 %. The present findings are discussed in the light of the previous structural studies of TTR variants, and show the reported structural differences to be non-significant.
About this Structure
1F41 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
A comparative analysis of 23 structures of the amyloidogenic protein transthyretin., Hornberg A, Eneqvist T, Olofsson A, Lundgren E, Sauer-Eriksson AE, J Mol Biol. 2000 Sep 22;302(3):649-69. PMID:10986125 Page seeded by OCA on Fri May 2 15:52:01 2008
