Identification and molecular cloning of glutamate decarboxylase gene from Lactobacillus casei
نویسندگان
چکیده مقاله:
Gamma-amino butyric acid (GABA) possesses several physiological functions such as neurotransmission, induction of hypotension, diuretic and tranquilizer effects. Production of GABA-enriched products by lactic acid bacteria has been a focus of different researches in recent years because of their safety and health-promoting specifities. In this study, glutamate decarboxylase (gad) gene of a local strains Lactobacillus casei was identified and cloned. In order to clone the gad gene from this strain, the PCR was carried out using primers designed based on conserved regions. The PCR product was purified and ligated into PGEM-T vector. Comparison of obtained sequences shows that this fragment codes the pyridoxal 5′-phosphate binding region. This strain could possibly be used for the industrial GABA production and also for development of functional fermented foods. Gad gene manipulation can also either decrease or increase the activity of enzyme in bacteria.
منابع مشابه
identification and molecular cloning of glutamate decarboxylase gene from lactobacillus casei
gamma-amino butyric acid (gaba) possesses several physiological functions such as neurotransmission, induction of hypotension, diuretic and tranquilizer effects. production of gaba-enriched products by lactic acid bacteria has been a focus of different researches in recent years because of their safety and health-promoting specifities. in this study, glutamate decarboxylase (gad) gene of a loca...
متن کاملmolecular gene cloning and sequencing of glutamate decarboxylase gene from lactobacillus delbrueckii and lactobacillus reuteri
glutamate decarboxylase enzyme produces γ-aminobutyric acid (gaba) in a non-reversible decarboxylation reaction of glutamate. gaba is a major inhibitory neurotransmitter of the brain and it is also present at high concentration in other organs such as pancreatic islets. gaba has effects on blood pressure, diabetes, inflammation, sleeplessness and depression. some bacteria such as lactobacillus ...
متن کاملPartial Cloning and Nucleotide Sequencing of Glutamate Decarboxylase Gene Isoform 65 from Human Brain
Background: Gamma -aminobutyric acid (GABA), a non-protein amino acid acts as an inhibitory neurotransmitter in the central nervous system of mammalians. The glutamate decarboxylase (GAD) is responsible for the conversion of L-glutamate to GABA. The human brain has two isoforms of this enzyme, GAD65 and GAD67 that differ in molecular weight, amino acid sequence, antigenicity, cellular location ...
متن کاملcloning of glutamate decarboxylase and production of γ-aminobutyric acid from lactobacillus brevis
متن کامل
partial cloning and nucleotide sequencing of glutamate decarboxylase gene isoform 65 from human brain
background: gamma -aminobutyric acid (gaba), a non-protein amino acid acts as an inhibitory neurotransmitter in the central nervous system of mammalians. the glutamate decarboxylase (gad) is responsible for the conversion of l-glutamate to gaba. the human brain has two isoforms of this enzyme, gad65 and gad67 that differ in molecular weight, amino acid sequence, antigenicity, cellular location ...
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عنوان ژورنال
دوره 4 شماره 3
صفحات 161- 165
تاریخ انتشار 2015-09-01
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