Amino acid neurotransmitter

An amino acid neurotransmitter is an amino acid which is able to transmit a nerve message across a synapse.

Neurotransmitters (chemicals) are packaged into vesicles that cluster beneath the axon terminal membrane on the presynaptic side of a synapse in a process called endocytosis.

[1] Amino acid neurotransmitter release (exocytosis) is dependent upon calcium Ca2+ and is a presynaptic response.

Excitatory amino acids (EAA) will activate post-synaptic cells.

[2] inhibitory amino acids (IAA) depress the activity of post-synaptic cells.

Activity at an axon terminal: Neuron A is transmitting a signal at the axon terminal to neuron B (receiving). Features: 1. Mitochondrion . 2. synaptic vesicle with neurotransmitters . 3. Autoreceptor. 4. Synapse with neurotransmitter released ( serotonin ). 5. Postsynaptic receptors activated by neurotransmitter (induction of a postsynaptic potential). 6. Calcium channel . 7. Exocytosis of a vesicle. 8. Recaptured neurotransmitter.
Unspecified L-amino acid