N-protection of amino acid derivatives catalyzed by immobilized penicillin G acylase [J].Biocatal Biotransform, 1997, 14, 317-32.FiteM,CapellasM,BenaigesMD,etal.N-protection of amino acid derivatives catalyzed by immobilized penicillinG acylase. BiocatalBiotransform . 1997...
The amino acid requirements of high-production dairy cows represent a challenge to ensuring that their diet is supplied with available dietary resources, and thus supplementation with protected amino acids is necessary to increase their post-ruminal supply. Lysine is often the most limiting amino acid...
UedaKimioJohn Wiley & Sons, Ltd.CheminformY. Kawase, T. Yamagishi, T. Kutsuma, T. Kataoka, K. Ueda, T. Iwakuma, T. Nakata, T. Yokomatsu, N-Benzyl-protection of amino acid derivatives by reductive alkylation with alpha-picoline-borane, Synthesis 10 (2010) 1673-1677....
Summary A great many protective groups have been developed for the amino group, including carbamates (>NCO 2 R), used for the protection of amino acids in peptide and protein syntheses, and amides (>NCOR), used more widely in syntheses of alkaloids and for the protection of the nitrogen ...
Like floral nectar, extrafloral nectar consists mainly of water with a high content of dissolved sugars and, in some plants, small amounts of amino acids. The extrafloral nectaries of some plants are known to attract ants and other insects, but the evolutionary history of most plants with ...
.These plantsusuallyoccurwhereantsareabundant,mostinthetropicsbutsomeintemperate areas.AmongthoseofnortheasternNorthAmericaarevariousplums,cherries,roses, hawthorns,poplars,andoaks.Likefloralnectar,extrafloralnectarconsistsmainlyofwater withahighcontentofdissolvedsugarsand,insomeplants,smallamountsofaminoacids. ...
small amounts of amino acids. The extrafloral nectaries of some plants are known to attract ants and other insects, but the evolutionary history of most plants with these nectaries is unknown. Nevertheless, most ecologists believe that all extrafloral nectaries attract insects that will defend the...
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A limited production of alanine was observed also in alanine-enriched diluted media. It is concluded that the apoptosis-preventing amino acids act as signal molecules, besides their nutritive function, and that the signal has a character of a survival factor. The observed phenomena are interpreted ...