Adsorção de aminoácidos sobre minerais e a origem da vida

Química Nova

Dimas A. M. Zaia²  Cássia Thaïs B. V. Zaia¹ 

[1] ,Universidade Estadual de Londrina Departamento de Química Centro de Ciências ExatasLondrina PR ,Brasil

关键词: adsorption;    minerals;    amino acids;   

DOI  :  10.1590/S0100-40422006000400027

来源: SciELO

【 摘 要 】

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.

【 授权许可】

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