As a model for mechanistic comparison with peptidyl transfer within the ribosome, the reaction of aqueous glycinamide with N-formylphenylalanine trifluoroethyl ester (fPhe-TFE) represents an improvement over earlier model reactions involving Tris. The acidity of trifluoroethanol (pKa 12.4) resembles that of
A possible reaction mechanism for the dehydration of glycinamide (3) and N,N'-diformylurea (4) yielding hypoxanthine (2) has been investigated. Furthermore, a potential prebiotic route converting hypoxanthine (2) into adenine (1) via phosphate activation followed by substitution reaction with NH3 was
Chemical communications (Cambridge, England), 46(25), 4517-4519 (2010-05-21)
Homopolymers of N-acryloyl glycinamide were prepared by reversible addition-fragmentation chain transfer polymerization in water. The formed macromolecules exhibit strong polymer-polymer interactions in aqueous milieu and therefore form thermoreversible physical hydrogels in pure water, physiological buffer or cell medium.
Because of their easy availability and their relative chemical stability, urea, formic acid, and glycine might have played a role in the assembly process of nucleobases. In this paper, a short reaction path is described to prepare hypoxanthine starting from
Glycine amide (GlyAd), a typically amidated amino acid, is a versatile additive that suppresses protein aggregation during refolding, heat treatment, and crystallization. In spite of its effectiveness, the exact mechanism by which GlyAd suppresses protein aggregation remains to be elucidated.
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