Chloroketone
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Estudos visando a síntese do alcaloide indolizidínico (+)-ipalbidina / Studies toward the synthesis of the indolizidine alkaloid (+)-ipalbidine
A ipalbidina é um alcaloide indolizidínico com propriedades analgésica e antirradicais livres. Este alcaloide possui como fonte natural a Ipomoea alba L., uma espécie de dama-da-noite, sendo isolado das suas sementes na forma de aglicona da ipalbina (ligada à D-glicose). A ipalbidina possui estrutura química relativamente simples, porém sua síntese n
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/02/2012
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2. Inhibition of amino acid transport into lymphoid cells by the glutamine analog L-2-amino-4-oxo-5-chloropentanoate.
Transport of L-glutamine and of the chloroketone glutamine analog L-2-amino-4-oxo-5-chloropentanoate into lymphoid cells is mediated by the same system. Arginine and a number of other amino acids (e.g., glutamate, aspartate, and lysine) are transported to a much lesser extent by this system. However, after uptake of the chloroketone into the cells, the trans
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3. Glutamine-Binding Subunit of Glutamate Synthase and Partial Reactions Catalyzed by This Glutamine Amidotransferase
In the course of studies on glutamine-dependent carbamyl phosphate synthetase from Aerobacter aerogenes, we purified another protein which was found to be glutamate synthase (EC 2.6.1.53). The enzyme, obtained in apparently homogeneous form (monomer molecular weight about 227,000; s20,ω = 17.6 S), was found to be a typical glutamine amidotransferase in that