1116-22-9Relevant articles and documents
γ-Glutamyl-dipeptides: Easy tools to rapidly probe the stereoelectronic properties of the ionotropic glutamate receptor binding pocket
Tamborini, Lucia,Nicosia, Veronica,Conti, Paola,Dall'Oglio, Federica,De Micheli, Carlo,Nielsen, Birgitte,Jensen, Anders A.,Pickering, Darryl S.,Pinto, Andrea
, p. 8486 - 8492 (2016/11/28)
γ-Glutamyl-dipeptides, built by condensing the distal carboxylate of L-Glu (or D-Glu) onto a series of differently functionalized amino acids, were prepared and used as tools for rapidly probing the stereo-electronic properties of iGluRs, searching for subtype-selective ligands.
Microstructure of poly(γ-glutamic acid) produced by Bacillus subtilis consisting of clusters of D- and L-glutamic acid repeating units
Wang, Fei,Ishiguro, Masaji,Mutsukado, Mai,Fujita, Ken-Ichi,Tanaka, Toshio
experimental part, p. 4225 - 4228 (2010/03/31)
Poly(γ-glutamic acid) (PGA) produced by a strain of Bacillus subtilis was partially hydrolyzed into various oligopeptides so that the dipeptide fraction was isolated by the preparative thin-layer chromatography. HPLC analysis was applied to the detection of each of the four stereoisomers in this fraction using chemically synthesized authentic samples. The fraction consisted of N-γ-D-glutamyl-D-glutamic acid, N-γ-L-glutamyl-L-glutamic acid, N-γ-D-glutamyl-L-glutamic acid, and N-γ-L-glutamyl-D-glutamic acid at a ratio of 5.9:6.0:1.0:1.0. On the basis of this result, a model was proposed for the microstructure of the bacterial PGA, in which D- and L-glutamic acid repeating units are alternately linked in a single chain of the molecule.
Effective formation of di- and tri-gamma-glutamates by gamma-glutamyltranspeptidase.
Watanabe,Kohashi
, p. 115 - 116 (2007/10/02)
Using gamma-glutamyltranspeptidase, conditions for di- and tri-gamma-glutamates synthesis were studied with glutamine and glutamic acid esters as substrates. The reactivity of amino acid esters was higher than for free ones. The efficient conditions were the combination of glutamine ethyl and glutamate diethyl esters with a molar ratio of 1/10 at pH 7-8.