... Descriptors : *BRAIN, *AMINO ACIDS, *NERVE TRANSMISSION, CALCIUM ... PRECURSORS, TOXICITY, ASPARTIC ACID, GLUTAMIC ACID ...
DTIC Science & Technology
Six amino acids (glycine, alanine, aspartic acid, glutamic acid, serine, and threonine) obtained by
NASA Technical Reports Server (NTRS)
... AMINO ACIDS), PROTOZOA, TRANSPORT PROPERTIES, MEMBRANES( BIOLOGY), PARASITES, BLOOD, DIFFUSION, ASPARTIC ACID. ...
...AND HUMAN SERVICES (CONTINUED) ANIMAL DRUGS, FEEDS, AND RELATED PRODUCTS SUBSTANCES GENERALLY RECOGNIZED AS SAFE Nutrients and/or Dietary Supplements 1 § 582.5017 Aspartic acid. (a) Product. Aspartic acid (L- and...
Code of Federal Regulations, 2011
Code of Federal Regulations, 2010
The formation of aspartic acid from glutamic acid, aspartic and glutamic acids from proline, alpha -aminobutyric acid from methionine, aspartic acid from histidine, dihydroxyphenylalanine from tyrosine, tyrosine and ...
Energy Citations Database
We have analyzed the degree of racemization of aspartic acid in ... aspartic acid racemization in permafrost cores increases very slowly up to an age of ...
NASA Website
... 1600 mg/kg. At lethal doses, aspartic acid produced neurotoxicity with tonic and clonic convulsions. Clinical signs observed ...
alone through the Dowex column. Three peaks were detected prior to aspartic acid and was carefully analyzed and one peak was detected prior to aspartic acid ...
A poly(aspartic acid) degrading bacterium (strain KT-1 [JCM10459]) was isolated from river water and identified as a member of the genus Sphingomonas. The isolate degraded only poly(aspartic acid)s of low molecular masses (<5 kDa), while the cell extract hydrolyzed high-molecular-mass ...
PubMed Central
Aspartate was first isolated in 1868 from legumin in plant seeds. Aspartic acid forms colorless crystals that are soluble in water and insoluble in alcohols and ethers. This is a naturally occurring nonessential amino acid that is produced in the liver from oxaloacetic acid, but is plentiful in ...
NSDL National Science Digital Library
Resolution of racemic aspartic acid, tryptophan, hydroxy and sulfhydryl amino ... conditions for resolution of galactonic and gluconic acid derivatives ...
... histidine, aspartic acid, glutamic acid, lysine, isoleucine, threonine, serine, valine, proline, arginine) in aqueous and nonaqueous micellar systems . ...
, cysteine, aspartic acid, glutamic acid, asparagine, glutamine, phenylalanine, tyrosine, and lysine
E-print Network
... The amino acid constitution (glyoine, serine, glutamic and aspartic acids, threonine, proline, alanine, methionine, leucine, valine phenylalanine1 ...
... The amino acid constitution (glycine, serine, glutamic and aspartic acids, threonine, proline, alanine, methionine, leucine, valine, phenylalanine ...
... RIBONUCLEASE, PEPTIDES), CHEMICAL BONDS, GLUTAMINE, TRYPTOPHAN, GLYCINE, PHENYLALANINE, ASPARTIC ACID, GLUTAMIC ...
... ANALYSIS, CHYMOTRYPSIN), AMMONIA, GLYCINE, ASPARTIC ACID, METHIONINE, PHENYLALANINE, LABELED SUBSTANCES ...
fatty acid transport proteins, fatty acid translo- case (FAT), mitochondrial aspartate aminotransferase translocase (FAT)(4), mitochondrial aspartate aminotransferase (mAspAT) (5), and fatty acid transport protein chain fatty acid; FAT, fatty acid ...
We found a new reaction of aspartic acid dehydrogenation, catalyzed by NADP(+)-dependent aspartate dehydrogenase, in vitamin B12-producing Klebsiella pneumoniae IFO 13541. The enzyme, which was purified from a crude extract of K.pneumoniae IFO 13541, catalyzes the oxidative deamination of aspartic ...
PubMed
Sunlight photolysis of the amino acids glutamate and aspartate were carried out on 0.1 M aqueous solutions at pH=7.0. The non-volatile products were identified by GC-MS analysis of derived methyl esters. The major product from glutamic acid was succinic acid, and, analogously, aspartic ...
NASA Astrophysics Data System (ADS)
An aqueous extract of oat leaves catalyzes a transamination between cysteine-sulfinic acid and alpha -ketoglutaric acid. Under the conditions utilized pyruvic acid is not an acceptor of the amino group. Neither cysteic nor aspartic acid is a substrate for the transaminase of ...
Radioprotective properties of sodium salts of nicotinyl aspartic acid, nicotinyl methionyl aspartic acid and nicotinyl glutamic acid were tested in mice (NMRI). Experimental animals were irradiated by rayage (9,5 Gy). Parameters were: survival rate, perit...
National Technical Information Service (NTIS)
Aspartic acid may be prepared chemically or by the fermentation of carbohydrates. Currently, low molecular weight polyaspartic acids are prepared commercially by heating aspartic acid at high temperatures (greater than 220 degrees C) for several hours in the solid state. In an effort to ...
Technology Transfer Automated Retrieval System (TEKTRAN)
The extent of racemization of aspartic acid, alanine, and leucine provides criteria for assessing whether ancient tissue samples contain endogenous DNA. In samples in which the D/L ratio of aspartic acid exceeds 0.08, ancient DNA sequences could not be re...
The polymeric material resulting in these experiments was shown to give glycine, alanine, sarcosine, aspartic acid and some imino dibasic acids on acid ...
... of phenylalanine and aspartic acid, which are two amino acids. Aspartame is 220 times sweeter than sugar. ... is unable to break down one of the amino acids used to make aspartame.
MedlinePLUS
... an automatic amino acid analyzer revealed the presence of: aspartic acid, threonine, serine, glutamic acid, proline, glycine, alanine, cystine, valine ...
... cetate, glycine, alanine, serine, cý-aminobutyric acid, threoni ... at least eleven amino acids including: aspartic acid, lysine, leucine, isoleucine, alanine ...
... The second component was the analysis of amino acids (specifically including glutamate, aspartate, taurine, and y-aminobutyric acid) of perfusion ...
... component was the analysis of amino acids (specifically including glutamate, aspartate, taurine, and gamma-aminobutyric acid) of perfusion fluids ...
The amino acids ( alanine, aspartic acid, glutamic acid, glycine, serine, and valine) chosen for analysis were present in the samples at concentrations of 1 ...
Mar 1, 2011 ... The amino acids ( alanine, aspartic acid, glutamic acid, glycine, serine, and valine) chosen for analysis were present in the samples at ...
L-aspartic acid was thermally polymerized in the presence of D-sorbitol with the goal of synthesizing new, higher molecular weight water soluble and absorbent copolymers. No reaction occurred when aspartic acid alone was heated at 170 or 200 degrees C. In contrast, heating sorbitol and ...
... Abstract : Intracortical infusion of the NMDA ('N-methyl-D-aspartate') receptor blocker 2-amino-5-phosphonovaleric acid (APV) renders kitten striate ...
In two surface samples of marine sediment, the percentages of -alanine and -aspartic acid are significantly higher than the other -amino acids and are similar to the range found in soils. The percentage of -glutamic acid is also higher than the other amino acids but less than -alanine and ...
L-aspartic acid was present in material found adjacent to clinically inflamed oral epithelial tissue. L-aspartic and gamma-aminobutyric acids were increased in bacterial culture media when sucrose and ascorbic acid were added to cultures of streptococci. ...
Aspartic acid concentration is increased in liver of irradiated mice treated with foreign bone marrow. The serine and glycine concentration of liver, plasma, and muscle is decreased in these animals. The rate of which aspartic acid is labeled by carbon-14 injected as carbon-14 glucose is different in ...
The perfused cockroach leg preparation is described. The leg gives an increased contraction to the addition of acetylcholine; L-glutamic acid; D-glutamic acid; L-aspartic acid. Increased amounts of acetylcholine, glutamic acid or aspartic acid bring ...
After infusion of DL-asparaginic acid (Inzolen) during operation the pharmacokinetics of L-aspartic acid were followed by means of enzymatic determinations in serum and urine samples. The level of L-aspartic acid in the serum increases during the infusion of 250 ml of Inzolen-Infusion (18.54 g ...
The synthesis and x-ray crystal structure of 2-(hydroxymethyl) aspartic acid and the preliminary evaluation of its interaction with cytosolic aspartate aminotransferase of pig heart are described. A dissociation constant 1.4 mM for the L-2-(hydroxymethyl) aspartate complex with the enzyme was obtained. 2 figures. ...
The Central Enzymes of the Aspartate Family of Amino Acid Biosynthesis RONALD E. VIOLA* Department- organisms. The absence of this pathway in humans and animals makes the central enzymes potential targets the nutritional value of crops. Our current state of knowledge of these enzymes is reviewed, including recently
... tb00093.x Characterization of the Gene Encoding a Histidine and Aspartic Acid-Rich Protein from Pneumocystis carinii1CHAO- ... G...
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