Adsorção de aminoácidos sobre minerais e a origem da vida



Título del documento: Adsorção de aminoácidos sobre minerais e a origem da vida
Revista: Quimica nova
Base de datos: PERIÓDICA
Número de sistema: 000313193
ISSN: 0100-4042
Autors: 1
2
Institucions: 1Universidade Estadual de Londrina, Centro de Ciencias Exatas, Londrina, Parana. Brasil
2Universidade Estadual de Londrina, Centro de Ciencias Fisiologicas, Londrina, Parana. Brasil
Any:
Període: Jul
Volum: 29
Número: 4
Paginació: 786-789
País: Brasil
Idioma: Portugués
Tipo de documento: Artículo
Enfoque: Experimental, analítico
Resumen en inglés Minerals adsorb more readily amino acids with charged R groups than those with uncharged R groups, so that the incorporation of amino acids with charged R groups into peptides would be more frequent than that of amino acids with uncharged R groups. However, 74% of the amino acids in the proteins of modern organisms contain uncharged R groups. Thus, what could have been the mechanism that produced peptides/proteins with more amino acids with uncharged R groups than precursors with charged R groups? The lipid world offers an alternative view of the origin of life. In the present paper, several other mechanisms are also discussed
Disciplines Química,
Biología
Paraules clau: Bioquímica,
Aminoácidos,
Adsorción,
Minerales,
Péptidos
Keyword: Chemistry,
Biology,
Biochemistry,
Amino acids,
Adsorption,
Minerals,
Peptides
Text complet: Texto completo (Ver HTML)