Glutamic protection

Cyclic anhydddes aie formed readily from Al-protected aspartic and glutamic acids. 

In Industrial Chemicals. Recendy, as some amino acids (eg, L-glutamic acid, L-lysine, glycine, DL-alanine, DL-methionine) have become less expensive chemical materials, they have been employed in various appHcation fields. Poly(amino acid)s are attracting attention as biodegradable polymers in connection with environmental protection (236). 

Oxazolidines are prepared to allow selective protection of the ct- or aj-C02H groups in aspartic and glutamic acids. 

The Dmab group was developed for glutamic acid protection during Fmoc/r-Bu based peptide synthesis. The group shows excellent acid stability and stability toward 20% piperidine in DMF. It is formed from the alcohol using the DCC protocol for ester formation and is cleaved with 2% hydrazine in DMF at rt. ... 

This method is complementary to the anti-selective Michael route to 3-substituted glutamates using 2-azaallyl anions derived from alkylidene protected glycine (see Section 1.5.2.4.1.1.). 

Rordorf, B., Koroshetz, W.J., and Boventre, J.V, (1991). Heat shock protects cultured neurons from glutamate toxicity. Neuron 7, 1043-1051. 

Vitamin E (tocopherol) is the most important antioxidant in the body, acting in the lipid phase of membranes and protecting against the effects of free radicals. Vitamin K functions as cofactor to a carboxylase that acts on glutamate residues of clotting factor precursor proteins to enable them to chelate calcium. 

Jung H, Toth PT, White PA, Miller RJ (2008) Monocyte chemoattractant protein-1 functions as a neuromodulator in dorsal root ganglia neurons. J Neurochem 104 254-263 Kahn L, Alonso G, Normand E, Manzoni OJ (2005) Repeated morphine treatment alters polysia-lylated neural cell adhesion molecule, glutamate decarboxylase-67 expression and ceU proliferation in the adult rat hippocampus. Em J Nemosci 21 493-500 Kaul M, Ma Q, Medders KE, Desai MK, Lipton SA (2007) HIV-1 coreceptors CCR5 and CXCR4 both mediate neuronal cell death but CCR5 paradoxically can also contribute to protection. Cell Death Differ (2) 296-305... 

N-Nitro-L-arginine methyl ester (L-NAME) is an inhibitor of NOS L-NAME reportedly reduces the volume of cortical and striatal infarct after middle cerebral artery occlusion in the rat. This protection can be reversed by co-injection of L-arginine. L-NAME also reduced the excitotoxic damage induced by NMDA injection. Finally, the authors showed that L-NAME reduced glutamate efflux produced by ischaemic injury in rats. The authors concluded that NOS induced by NMDA receptor overstimulation is a key event in the neuronal injury cascade (Buisson eta/., 1993). 

For the elongation of the chain starting from 11 toward the N-terminal group, direct condensation of the activated p-nitrophenyl esters of such amino acids as N-protected L-cysteine, L-glutamic acid, glycine, L-leu-cine, L-proline, L-serine, L-tyrosine, andL-valine with 2-acetamido-3,4,6-... 

Joyce J, Cook J, Chabot D et al (2006) Immunogenicity and protective efficacy of Bacillus anthracis poly-y-D-glutamic acid capsule covalently coupled to a protein carrier using a novel triazine-based conjugation strategy. J Biol Chem 281 4831 -843... 

Okamoto S, Yoshii H, Akagi T et al (2007) Influenza hemagglutinin vaccine with poly (y-glutamic acid) nanoparticles enhances the protection against influenza virus infection through both humoral and cell-mediated immunity. Vaccine 25 8270-8278... 

Okamoto S, Matsuura M, Akagi T et al (2009) Poly(y-glutamic acid) nano-particles combined with mucosal influenza virus hemagglutinin vaccine protects against influenza virus infection in mice. Vaccine 27 5896-5905... 

Okamoto S, Yoshii H, Ishikawa T et al (2008) Single dose of inactivated Japanese encephalitis vaccine with poly(y-glutamic acid) nanoparticles provides effective protection from Japanese encephalitis virus. Vaccine 26 589-594... 

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