2b14
From Proteopedia
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'''The crystal structure of 2,4-dinitrophenol in complex with the amyloidogenic variant Transthyretin Leu 55 Pro''' | '''The crystal structure of 2,4-dinitrophenol in complex with the amyloidogenic variant Transthyretin Leu 55 Pro''' | ||
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[[Category: Saraiva, M J.]] | [[Category: Saraiva, M J.]] | ||
[[Category: 2,4-dinitrophenol]] | [[Category: 2,4-dinitrophenol]] | ||
| - | [[Category: | + | [[Category: Amyloid]] |
| - | [[Category: | + | [[Category: Tetramer stabilizer]] |
| - | [[Category: | + | [[Category: Transthyretin]] |
| - | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 19:43:24 2008'' | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | |
Revision as of 16:43, 3 May 2008
The crystal structure of 2,4-dinitrophenol in complex with the amyloidogenic variant Transthyretin Leu 55 Pro
Overview
Systemic deposition of transthyretin (TTR) amyloid fibrils is always observed in familial amyloidotic polyneuropathy, senile systemic amyloidosis and familial amyloidotic cardiomyopathy patients. Destabilization of the molecule leads to a cascade of events which result in fibril formation. The destabilization of a native protein with consequent conformational changes appears to be a common link in several human amyloid diseases. Intensive research has been directed towards finding small molecules that could work as therapeutic agents for the prevention/inhibition of amyloid diseases through stabilization of the native fold of the potentially amyloidogenic protein. This work provides insight into the structural determinants of the highly stabilizing effects of 2,4-dinitrophenol on wild-type TTR. It is also shown that similar interactions are established between this molecule and two highly amyloidogenic TTR variants: TTR L55P and TTR Y78F. In the three crystal complexes, 2,4-dinitrophenol occupies the two hormone-binding sites of the TTR tetramer. As a result of 2,4-dinitrophenol binding, the two dimers in the TTR tetramer become closer, increasing the stability of the protein. The three-dimensional structures now determined allow a comprehensive description of key interactions between transthyretin and 2,4-dinitrophenol, a small compound that holds promise as a template for the design of a therapeutical drug for amyloid diseases.
About this Structure
2B14 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
The binding of 2,4-dinitrophenol to wild-type and amyloidogenic transthyretin., Morais-de-Sa E, Neto-Silva RM, Pereira PJ, Saraiva MJ, Damas AM, Acta Crystallogr D Biol Crystallogr. 2006 May;62(Pt 5):512-9. Epub 2006, Apr 19. PMID:16627944 Page seeded by OCA on Sat May 3 19:43:24 2008
