scholarly journals Determination ofd-amino acids. I. Hydrolysis of DNP-l-amino acid methyl esters with carboxypeptidase-Y

1984 ◽  
Vol 49 (6) ◽  
pp. 585-590 ◽  
Author(s):  
Peter Marfey ◽  
Martin Ottesen
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Methyl Esters ◽  
Carboxypeptidase Y ◽  
Acid Methyl ◽  
Hydrolysis Of ◽  
Amino Acid Methyl Esters

Multifunctional lubricant additives derived from natural amino acids and methyl oleate

RSC Advances ◽  
2015 ◽  
Vol 5 (95) ◽  
pp. 77538-77544 ◽  
Author(s):  
Arukali Sammaiah ◽  
Korlipara V. Padmaja ◽  
Shiva Shanker Kaki ◽  
Rachapudi B. N. Prasad
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Methyl Oleate ◽  
Thioglycolic Acid ◽  
Methyl Esters ◽  
Lubricant Additives ◽  
Acid Methyl ◽  
Multifunctional Additives ◽  
Natural Amino Acids ◽  
Amino Acid Methyl Esters

Novel multifunctional additives were synthesized from methyl oleate via thioglycolic acid addition followed by condensation with different amino acid methyl esters.

The Resolution of Amino Acids by Enzymes Part 1: Proteolytic Enzyme Bromelain for Hydrolysis ofL-Amino Acid Methyl Esters

1977 ◽  
Vol 24 (3) ◽  
pp. 129-133 ◽  
Author(s):  
Chi-Huey Wong ◽  
Shui-Tien Chen ◽  
Kung-Tsung Wang
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Proteolytic Enzyme ◽  
Methyl Esters ◽  
Acid Methyl ◽  
Amino Acid Methyl Esters

The free energy-reaction coordinate profile for ?-chymotryptic hydrolysis of a series ofN-acetyl-?-L-amino acid methyl esters

1974 ◽  
Vol 6 (6) ◽  
pp. 801-811 ◽  
Author(s):  
Karel Martinek ◽  
A. A. Klyosov ◽  
N. F. Kazanskaya ◽  
I. V. Berezin
Keyword(s):  
Free Energy ◽  
Amino Acid ◽  
Methyl Esters ◽  
Reaction Coordinate ◽  
Acid Methyl ◽  
Energy Reaction ◽  
Hydrolysis Of ◽  
Amino Acid Methyl Esters

scholarly journals Amino acid sulfonamides based on 4-(1-oxo-1H-isochromen-3-yl)benzenesulfonyl chloride

2020 ◽  
Vol 15 (2) ◽  
pp. 27-32
Author(s):  
Anastasiia Riabchenko ◽  
Olga Shablykina ◽  
Serhiy Shilin ◽  
Svitlana Chumachenko ◽  
Volodymyr Khilya
Keyword(s):  
Amino Acid ◽  
Methyl Esters ◽  
Sulfonyl Chloride ◽  
Benzenesulfonyl Chloride ◽  
Acid Methyl ◽  
Similar Product ◽  
Alkali Hydrolysis ◽  
Hydrolysis Of ◽  
Derivatives Of ◽  
Amino Acid Methyl Esters

The creation of new amino acid derivatives of 4-(1-oxo-1H-isochromen-3-yl)benzenesulfonyl chloride 1 was investigated. The interaction of the sulfonyl chloride 1 with amino acid methyl esters (hydrochlorides) in 1,4-dioxane in the presence of triethylamine led to the corresponding amino acid sulfonamide derivatives of isocoumarin. The reaction of the sulfonyl chloride 1 with phenylalanine in the basic aqueous solution was complicated by the lactone system disclosure and led to 2'-carboxydeoxybenzoin ultimately (namely, 2-(2-(4-(N-(1-carboxy-2-phenylethyl)sulfamoyl)phenyl)-2-oxoethyl)benzoic acid). Similar product was obtained by the alkali hydrolysis of methyl ((4-(1-oxo-1H-isochromen-3-yl)phenyl)sulfonyl)leucinate.

ChemInform Abstract: Selectivity in Carbonic Anhydrase Catalyzed Hydrolysis of Standard N- Acetyl-DL-amino Acid Methyl Esters.

ChemInform ◽  
2010 ◽  
Vol 24 (41) ◽  
pp. no-no
Author(s):  
R. CHENEVERT ◽  
R. BEL RHLID ◽  
M. LETOURNEAU ◽  
R. GAGNON ◽  
L. D'ASTOUS
Keyword(s):  
Amino Acid ◽  
Carbonic Anhydrase ◽  
Methyl Esters ◽  
Acid Methyl ◽  
Hydrolysis Of ◽  
Amino Acid Methyl Esters

scholarly journals Responses of cultured cardiac myocytes to lysosomotropic compounds and methylated amino acids

1985 ◽  
Vol 74 (1) ◽  
pp. 119-135
Author(s):  
R.S. Decker ◽  
M.L. Decker ◽  
V. Thomas ◽  
J.W. Fuseler
Keyword(s):  
Amino Acids ◽  
Amino Acid ◽  
Methyl Ester ◽  
Acridine Orange ◽  
Cardiac Myocytes ◽  
Methyl Esters ◽  
Acid Proteinase ◽  
Weak Bases ◽  
Acid Methyl ◽  
Amino Acid Methyl Esters

Cardiac myocytes whose lysosomes had been pre-labelled with acridine orange were exposed to either L-amino acid methyl esters (L-leucine or methionine methyl ester) or to ‘lysosomotropic’ weak bases (chloroquine, methylamine, and NH4Cl) for 1 h. Both types of interventions dilated lysosomes equally and inhibited proteolysis to varying degrees. The weak bases produced no apparent alterations in the acridine orange staining, whereas the methylated amino acids induced a marked redistribution of the fluorescent dye from lysosomes into the myoplasm, suggesting that they may have provoked a change in lysosomal membrane permeability. A brief exposure to weak bases failed to enhance acid proteinase secretion into the culture medium but apparently inactivated cellular cathepsin B activity. In contrast, methylated amino acids induced no alterations in acid proteinase activity or the cellular distribution of the two proteolytic enzymes. Lastly, weak bases markedly elevated intralysosomal pH as measured with fluorescein dextran, while only modest rises were observed after amino acid methyl ester treatment. The present observations imply that amino acid methyl esters represent a new class of reagents with actions distinctly different from those of chloroquine and NH4Cl, and they may provide a unique and valuable means of studying secondary lysosomal function in cell culture.

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