Carboxymethylated-aspartic acid

Complex formation between M " (M = Mg, Ca, Sr, or Ba) and l,3-diamino-2-hydroxypropane-JVN -dimalonic add, N-(carboxymethyl)aspartic add, NN-bis(carboxymethyl)aspartic acid, and thiophen-2-carboxylic add in aqueous solutions has been die subject of four separate investigations in general, the stability of the complexes decreases as the cationic radius is increased. ... 

DL-2-(Carboxymethyl)nitrilotriacetic acid (N,N-bis(carboxymethyl)aspartic acid)... 

Scheme 2 Degradation pathways for aspartame APM = aspartame P-APM = P-aspartame PM = phenylalanine methyl ester DKP = 3-benzyl-6-carboxymethyl-2,5-diketopiperazine a-AP = a-L-aspartyl-Z,-phenylalanine PA = L-phenylalanyl-I-aspartic acid)...

Scheme 5.1.2. Structures of substrates and substrate mimetic moieties for Arg- and Glu-specific proteases. 1. arginine 2. 4-amidinophenyl ester 3. 4-guanidinophenyl ester (OGp) 4. aspartic acid 5. glutamic acid 6. carboxymethyl thioester (SCm).

Baikiain (172), (— )-4,5-dehydro-L-pipecolinic acid, was isolated from the African tree Baikiaea plurijuga.162 Catalytic hydrogenation of 172 gave l-( — )-pipecolinic acid (173) A-carboxymethyl-L-aspartic acid (174) was obtained from 172 by ozonolysis.162... 

Carboxymethylhomocysteine elutes from most analyzer columns just after proline, and the other two derivatives are discussed below. It should be possible to quantitate the carboxymethylsulfonium derivative after complete enzymic hydrolysis (see 2.11), since it has been shown that they elute as two peaks just prior to aspartic acid (Gundlach et al. 1959). The amount of carboxymethylsulfonium derivative present can best be quantitated by oxidizing the non-carboxymethylated methionine to methionine sulfone ( 2.5.9) and subtracting the amount of methionine sulfone from the total methionine content of the protein to obtain the amount of methionine carboxymethylsulfonium salts. 

Carboiqfniethylcellulose, sodium salt Carboxymethyl ether cellulose sodium salt. See Carboxymethylcellulose sodium N-(3-Carboxy-1-oxosulfoprop )-N-octadecyl-L-aspartic acid, tetrasodium salL See Tetrasodium dicarboxyethyl stearyl sulfosuccinamate 4-Carboxyphthalic anhydride. SeeTrimellitic anhydride Carboinpolymethylene. See Carbomer Carmellose sodium See Carboxymethylcellulose sodium Carmine Carmine alum lake Carmine, certified. See Carmine (Coccus cactO... 

Hydrolysis with trypsin of citraconyl-carboxymethyl-j8-D-galactosidase from E. coli has been carried out under limiting conditions. l-Aspartic acid-L-arginine-X sequences were cleaved and many large peptides were produced. From this digest and two earlier preparations, all 80 theoretically possible tryptic fragments have been isolated and their structures determined. 

A related study by Amon, et al. " involved the formation of platinum complexes using polysaccharides and polyamino acids. Suggested carriers are dextran amine, carboxymethyl dextran, poly(L-glutamic acid), and poly(L-aspartic acid). The platinum compounds employed were potassium tetrachloroplatinate II, m-DDP, and cw-Aq. 

Uses SurfaclanL foaming agent in cosmetics Carboxymethyl starch sodium saH. See Sodium starch glycolate (Carboxymethyl) trimethylammonium hydroxide, inner salt. See Betaine N-(3-Carboxy-1-oxosulfopropl)-N-octadecyl-L-aspartic acid, tetrasodium saH. 

Host-guest Polyallylamine [P-cyclodextrine], poly (acrylic acid) [azobenzene], poly(methacryUc acid) [azobenzene] Poly(L-aspartic acid) [adamantine] Dextran [carboxymethyl-, a-cyclodextrin, p-cyclodextrin]... 

---