Darwin's Warm Little Pond: A One‐Pot Reaction for Prebiotic Phosphorylation and the Mobilization of Phosphate from Minerals in a Urea‐Based Solvent
作者:Bradley Burcar、Matthew Pasek、Maheen Gull、Brian J. Cafferty、Francisco Velasco、Nicholas V. Hud、César Menor‐Salván
DOI:10.1002/anie.201606239
日期:2016.10.10
and other models for the origins of life on Earth. Herein, we demonstrate that a scenario based on the formation of a urea/ammonium formate/water (UAFW) eutectic solution leads to an increase in phosphorylation when compared to urea alone for phosphate sources of varying solubility. In addition, under evaporative conditions and in the presence of MgSO4, the UAFW eutectic mobilizes the phosphate sequestered
不溶性磷酸盐(如磷灰石族矿物)的反应性差,已成为建议的益生元有机磷酸盐形成模型的一个长期以来被认识到的障碍。这一障碍对RNA世界和地球生命起源的其他模型的新兴发展提出了重大挑战。在这里,我们证明了基于尿素/甲酸铵/水(UAFW)低共熔溶液的形成的方案与不同溶解度的磷酸盐源的单独尿素相比,导致磷酸化的增加。另外,在蒸发条件下,在MgSO 4存在下,UAFW低共熔物动员了水不溶性羟基磷灰石中螯合的磷酸盐,从而显着增加了磷酸化作用。这些结果表明,在地质上可行的蒸发环境中,尿素的益生元浓度可以解决益生元地球上有机磷酸化的问题。