4d7b

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== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/TTHY_HUMAN TTHY_HUMAN]] Thyroid hormone-binding protein. Probably transports thyroxine from the bloodstream to the brain.<ref>PMID:3714052</ref>
[[http://www.uniprot.org/uniprot/TTHY_HUMAN TTHY_HUMAN]] Thyroid hormone-binding protein. Probably transports thyroxine from the bloodstream to the brain.<ref>PMID:3714052</ref>
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== Publication Abstract from PubMed ==
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Transthyretin (TTR) is a plasma homotetrameric protein implicated in fatal systemic amyloidoses. TTR tetramer dissociation precedes pathological TTR aggregation. Native state stabilizers are promising drugs to treat TTR amyloidoses. Here we repurpose tolcapone, an FDA-approved molecule for Parkinson's disease, as a potent TTR aggregation inhibitor. Tolcapone binds specifically to TTR in human plasma, stabilizes the native tetramer in vivo in mice and humans and inhibits TTR cytotoxicity. Crystal structures of tolcapone bound to wild-type TTR and to the V122I cardiomyopathy-associated variant show that it docks better into the TTR T4 pocket than tafamidis, so far the only drug on the market to treat TTR amyloidoses. These data indicate that tolcapone, already in clinical trials for familial amyloid polyneuropathy, is a strong candidate for therapeutic intervention in these diseases, including those affecting the central nervous system, for which no small-molecule therapy exists.
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Repositioning tolcapone as a potent inhibitor of transthyretin amyloidogenesis and associated cellular toxicity.,Sant'Anna R, Gallego P, Robinson LZ, Pereira-Henriques A, Ferreira N, Pinheiro F, Esperante S, Pallares I, Huertas O, Rosario Almeida M, Reixach N, Insa R, Velazquez-Campoy A, Reverter D, Reig N, Ventura S Nat Commun. 2016 Feb 23;7:10787. doi: 10.1038/ncomms10787. PMID:26902880<ref>PMID:26902880</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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==See Also==
==See Also==

Revision as of 06:47, 2 March 2016

Structure of human transthyretin in complex with Tolcapone

4d7b, resolution 1.15Å

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