Adsorption of amino acids on minerals and the origin of life

Química Nova

Universidade Estadual de Londrina, Londrina, Brasil¹  Zaia, Cássia Thaïs B. V.¹  Zaia, Dimas A. M.¹ 

关键词: adsorption;    minerals;    amino acids.;   

DOI  :  10.1590/S0100-40422006000400027

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 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】

Unknown