Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Biol. Res. (1) Autor BARRIENTOS,GENARO (1) BELTRÁN,MARIANELA (1) HIDALGO,CECILIA (1) Palavra-chave Calcium release kinetics (1) Calcium-binding proteins (1) Excitation-contraction coupling (1) Ryanodine receptors (1) Sarcoplasmic reticulum (1) Skeletal and cardiac muscle (1) Mais... Tipo do documento Journal article (1) Ano 2006 (1) País Chile (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Fast kinetics of calcium dissociation from calsequestrin Biol. Res. BELTRÁN,MARIANELA; BARRIENTOS,GENARO; HIDALGO,CECILIA. We measured the kinetics of calcium dissociation from calsequestrin in solution or forming part of isolated junctional sarcoplasmic reticulum membranes by mixing calsequestrin equilibrated with calcium with calcium-free solutions in a stopped-flow system. In parallel, we measured the kinetics of the intrinsic fluorescence changes that take place following calcium dissociation from calsequestrin. We found that at 25ºC calcium dissociation was 10-fold faster for calsequestrin attached to junctional membranes (k = 109 s-1) than in solution. These results imply that calcium dissociation from calsequestrin in vivo is not rate limiting during excitation-contraction coupling. In addition, we found that the intrinsic fluorescence decrease for calsequestrin in... Tipo: Journal article Palavras-chave: Calcium-binding proteins; Ryanodine receptors; Sarcoplasmic reticulum; Calcium release kinetics; Excitation-contraction coupling; Skeletal and cardiac muscle. Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000300011 Registros recuperados: 1 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco