Substituted 4-aminobutanoic acids. Substrates for gamma-aminobutyric acid alpha-ketoglutaric acid aminotransferase.
نویسندگان
چکیده
منابع مشابه
Elevation of y=Aminobutyric Acid in Brain: Selective Inhibition of y-Aminobutyric-a-ketoglutaric Acid Transaminase*
The quantitative measurement of amino acids in different areas of the central nervous system has shown that a progressive increase takes place in levels of y-aminobutyric acid during development (2, 3), and that the concentration of this amino acid in adult brain is relatively constant under a variety of physiological stresses. y-Aminobutyric acid is synthesized by glutamic acid decarboxylase, ...
متن کاملGamma-Aminobutyric Acid (GABA) Monograpy
Introduction Gamma-aminobutyric acid (GABA) is a major neuro transmitter widely distributed throughout the central nervous system (CNS). Because too much excitation can lead to irritability, restlessness, insomnia, seizures, and movement disorders, it must be balanced with inhibition. GABA – the most important inhibitory neurotransmitter in the brain – provides this inhibition, acting like a “b...
متن کاملP146: Gamma Aminobutyric Acid (GABA) and its Alterations in Stress
Gamma aminobutyrate (GABA) is a non-protein amino acid that is thought to play an important role in the modulation of the central response to stress. Mechanisms by which GABA may facilitate these responses to stress are metabolic and/or mechanical disruptions. Environmental stresses increase GABA accumulation through cytosolic acidification, induce an acidic pH-dependent activation of glutamate...
متن کاملPurification studies of tyrosine-alpha-ketoglutaric acid transaminase.
Recent studies in vitro of tyrosine metabolism have revealed the distribution and the r&e of the tyrosine-a-ketoglutaric acid transaminase system (l-8). In certain of these studies the obligatory rBle of this transaminase as a first step in the conversion of tyrosine to homogentisic acid has been indicated (6-S). The present study is concerned with the partial purification of dog liver tyrosine...
متن کاملMetabolism and functions of gamma-aminobutyric acid.
Gamma-aminobutyric acid (GABA), a four-carbon non-protein amino acid, is a significant component of the free amino acid pool in most prokaryotic and eukaryotic organisms. In plants, stress initiates a signal-transduction pathway, in which increased cytosolic Ca2+ activates Ca2+/calmodulin-dependent glutamate decarboxylase activity and GABA synthesis. Elevated H+ and substrate levels can also st...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1981
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)68438-3