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Glutamate transporters are a family of neurotransmitter transporter proteins that move glutamate – the principal excitatory neurotransmitter – across a membrane. The family of glutamate transporters is composed of two primary subclasses: the excitatory amino acid transporter ( EAAT ) family and vesicular glutamate transporter ( VGLUT ) family.
Glutamate is a very major constituent of a wide variety of proteins; consequently it is one of the most abundant amino acids in the human body. [1] Glutamate is formally classified as a non-essential amino acid, because it can be synthesized (in sufficient quantities for health) from α-ketoglutaric acid, which is produced as part of the citric acid cycle by a series of reactions whose ...
Glutamate is transported with aspartate via antiporter, thus as one aspartate leaves the cell, a glutamate enters. Glutamate in the matrix is converted into an a-ketoglutarate which is transported in an antiporter with malate. In the cytoplasmic side a-ketoglutarate is converted back into glutamate when aspartate is converted back to oxaloacetate.
Neurotransmitters are essential to the function of complex neural systems. The exact number of unique neurotransmitters in humans is unknown, but more than 100 have been identified. [3] Common neurotransmitters include glutamate, GABA, acetylcholine, glycine, dopamine and norepinephrine.
Glutamate (the conjugate base of glutamic acid) is abundant in the human body, but particularly in the nervous system and especially prominent in the human brain where it is the body's most prominent neurotransmitter, the brain's main excitatory neurotransmitter, and also the precursor for GABA, the brain's main inhibitory neurotransmitter. [2]
Excitatory amino acid transporter 1 (EAAT1) is a protein that, in humans, is encoded by the SLC1A3 gene. [5] EAAT1 is also often called the GLutamate ASpartate Transporter 1 ( GLAST-1 ). EAAT1 is predominantly expressed in the plasma membrane, allowing it to remove glutamate from the extracellular space. [ 6 ]
Glutamic acid (symbol Glu or E; [4] the anionic form is known as glutamate) is an α-amino acid that is used by almost all living beings in the biosynthesis of proteins.It is a non-essential nutrient for humans, meaning that the human body can synthesize enough for its use.
While there are many examples of channels within the human body, two notable ones are sodium and potassium channels. Potassium channels are typically involved in the transport of potassium ions across the cell membrane to the outside of the cell, which helps maintain the negative membrane potential of cells. As there are more potassium channels ...