Structural Studies of Amyloid Proteins at the Molecular Level.
Annu Rev Biochem
; 86: 69-95, 2017 06 20.
Article
em En
| MEDLINE
| ID: mdl-28125289
ABSTRACT
Dozens of proteins are known to convert to the aggregated amyloid state. These include fibrils associated with systemic and neurodegenerative diseases and cancer, functional amyloid fibrils in microorganisms and animals, and many denatured proteins. Amyloid fibrils can be much more stable than other protein assemblies. In contrast to globular proteins, a single protein sequence can aggregate into several distinctly different amyloid structures, termed polymorphs, and a given polymorph can reproduce itself by seeding. Amyloid polymorphs may be the molecular basis of prion strains. Whereas the Protein Data Bank contains some 100,000 globular protein and 3,000 membrane protein structures, only a few dozen amyloid protein structures have been determined, and most of these are short segments of full amyloid-forming proteins. Regardless, these amyloid structures illuminate the architecture of the amyloid state, including its stability and its capacity for formation of polymorphs.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Proteínas Amiloidogênicas
/
Agregação Patológica de Proteínas
/
Proteínas Priônicas
Limite:
Animals
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Humans
Idioma:
En
Revista:
Annu Rev Biochem
Ano de publicação:
2017
Tipo de documento:
Article