نتایج جستجو برای: glutamate decarboxylase 2
تعداد نتایج: 2563223 فیلتر نتایج به سال:
The interaction of a variety of pyridoxal analogues with glutamate decarboxylase and aspartate aminotransferase has been studied. Pyridoxal phosphate N-oxide, N-methylpyridoxal phosphate, 3-0-methylpyridoxal phosphate, 4-de(formyl)-4-vinyl pyridoxal phosphate, and pyridoxal analogues which contain modified substituents in position 5 (CH2CHrOPOsHL, CH(CHB)OPOIH2, CHVPOBHL, and CHICH,COOH) are bo...
Glutamic acid decarboxylase (GAD; glutamate decarboxylase, L-glutamate 1-carboxy-lyase, EC 4.1.1.15), which catalyzes formation of gamma-aminobutyric acid from L-glutamic acid, is detectable in different isoforms with distinct electrophoretic and kinetic characteristics. GAD has also been implicated as an autoantigen in the vastly differing autoimmune disease stiff-man syndrome and insulin-depe...
Mutations in the CLN3 gene are responsible for the neurodegenerative disorder Batten disease; however, the molecular basis of this disease remains unknown. In studying a mouse model for Batten disease, we report the presence of an autoantibody to glutamic acid decarboxylase (GAD65) in cln3-knockout mice serum that associates with brain tissue but is not present in sera or brain of normal mice. ...
The glutamate decarboxylase (GAD) system has been shown to be important for the survival of Listeria monocytogenes in low pH environments. The bacterium can use this faculty to maintain pH homeostasis under acidic conditions. The accepted model for the GAD system proposes that the antiport of glutamate into the bacterial cell in exchange for γ-aminobutyric acid (GABA) is coupled to an intracell...
In this study, a new bacterial strain having a high ability to produce γ-aminobutyric acid (GABA) was isolated from naturally fermented scallop solution and was identified as Enterococcus avium. To the best of our knowledge, this is the first study to prove that E. avium possesses glutamate decarboxylase activity. The strain was then mutagenized with UV radiation and was designated as E. avium ...
In this study, we demonstrated the asymmetric synthesis of L-tert-leucine from trimethylpyruvate using branchedchain aminotransferase (BCAT) from Escherichia coli in the presence of L-glutamate as an amino donor. Since BCAT was severely inhibited by 2-ketoglutarate, in order to overcome this here, we developed a BCAT/aspartate aminotransferase (AspAT) and BCAT/AspAT/pyruvate decarboxylase (PDC)...
BACKGROUND Gamma-aminobutylate (GABA) is an important chemical in pharmacetucal field and chemical industry. GABA has mostly been produced in lactic acid bacteria by adding L-glutamate to the culture medium since L-glutamate can be converted into GABA by inherent L-glutamate decarboxylase. Recently, GABA has gained much attention for the application as a major building block for the synthesis o...
Neurons must maintain a supply of neurotransmitter in their presynaptic terminals to fill synaptic vesicles. GABA is taken up into inhibitory terminals by transporters or is synthesized from glutamate by glutamic acid decarboxylase. Here we report that glutamate transporters supply GABAergic terminals in the hippocampus with glutamate, which is then used to synthesize GABA for filling synaptic ...
L-Cysteinesulfinate, a quantitatively important catabolite of L-cysteine, is a substrate of both cysteinesulfinate decarboxylase and glutamate-oxaloacetate transaminase. The former enzyme initiates a pathway leading to taurine; the latter enzyme forms /3-sulfinylpyruvate, which spontaneously decomposes to pyruvate and SOZ. In the present studies, the in uiuo partitioning of cysteinesulfinate be...
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