It is found in protein-containing foods.It is vital for metabolism and brain function. Glutamate is a naturally occurring amino acid that is found in nearly all foods, especially high protein foods such as dairy products, meat and fish and in many vegetables.
For its use in food, see glutamic acid (flavor) . For glutamic acid in general, see glutamic acid. For other uses of MSG, see MSG (disambiguation) . Monosodium glutamate (MSG, also known as sodium glutamate) is the sodium salt of glutamic acid, one of the most abundant naturally occurring non-essential amino acids. Glutamate is found in tomatoes, Parmesan cheese, potatoes, mushrooms, and other vegetables and fruits MSG, or Monosodium Glutamate is a salt of the amino acid-Glutamic Acid (glutamate). A salt is the chemical name for a molecule held together by opposite charges. Basically one (mono) sodium atom is stuck to the amino acid glutamate.  Glutamate is an amino acid, found in protein-containing foods. It is one of the most abundant and important components of proteins. Glutamate occurs naturally in cheese, milk, meat, fish, and many vegetables. Glutamate is also produced by the human body and is vital for metabolism and brain function. GLUTAMATE AS NEUROTRANSMITTER. Glutamic acid (abbreviated as Glu or E) is one of the 20-22 proteinogenic amino acids, and its codons are GAA and GAG. It is a non-essential amino acid with a side chain carboxylic acid functional group. The carboxylate anions and salts of glutamic acid are known as glutamates. Glutamate is the most abundant excitatory neurotransmitter in the nervous system and it plays a key role in long-term potentiation. It is involved in most aspects of normal brain functions, including cognition, memory and learning. The glutamate released in the synaptic cleft binds to its receptor on the postsynaptic terminals, and it produces an excitatory postsynaptic potential (EPSP). The glutamate receptors can be divided into two groups according to the mechanism by which their activation gives rise to a postsynaptic current. Neurobiol. 65, 1-105. Glutamate. Outside the community of biomedical scientists, glutamate is probably best known as monosodium glutamate or MSG which is used as a flavor or taste enhancer in food. It is usually available together with other food additives and spices in most large food stores. Glutamate is considered to be the major mediator of excitatory signals in the mammalian central nervous system and is involved in most aspects of normal brain function including cognition, memory and learning. Monosodium glutamate is the sodium salt of glutamic acid. Glutamate is a naturally occurring amino acid that is found in nearly all foods, especially high protein foods such as dairy products, meat and fish and in many vegetables. Foods often used for their flavouring properties, such as mushrooms and tomatoes, have high levels of naturally occurring glutamate. Excitatory amino acid transporters (EAATs) , also known as glutamate transporters, belong to the family of neurotransmitter transporters. Glutamate is the principal excitatory neurotransmitter in the vertebrate brain. EAATs serve to terminate the excitatory signal by removal (uptake) of glutamate from the neuronal synaptic cleft into neuroglia and neurons. Glutamate (Glutamic acid) is the most prominent neurotransmitter in the body, and it is the main excitatory neurotransmitter, being present in over 50% of nervous tissue. Glutamate was initially discovered to be a neurotransmitter in insect studies in the early 1960s. 
https://en.wikipedia.org/wiki/Monosodium_glutamate http://www.msgtruth.org/whatisit.htm http://www.raysahelian.com/glutamate.html http://flipper.diff.org/app/pathways/info/4602 http://neurotransporter.org/glutamate.html http://www.eufic.org/article/en/artid/monosodium-glutamate/ https://en.wikipedia.org/wiki/Glutamate_transporter https://en.wikipedia.org/wiki/Glutamate_receptor
glutamate where is found function and removed by