Aniracetam, AMPA receptor poteniator

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

Glutamate Receptor 1 (GRIA1) also known as AMPA receptor is a subunit of ionotropic glutamate receptors with a mass of about 106 kDa. This protein is mainly expressed in the central nervous system especially in the brain cortex. GRIA1 plays a role in excitatory neurotransmission by controlling the flow of ions through the cell membrane important for synaptic plasticity and neuron communication. This receptor forms tetrameric complexes facilitating rapid synaptic transmission by mediating the influx of calcium and sodium ions upon glutamate binding.

Biological function summary

GRIA1 influences cellular signaling through synaptic strength modulation and neuroplasticity important for learning and memory. It forms a part of the larger AMPA receptor complex which includes other subunits like Glutamate Receptor 2 (GRIA2). AMPA receptors' activity may modulate neuronal circuit function and interacts functionally with NMDA receptors to allow calcium permeability upon synaptic excitation. The dynamic expression and function of GRIA1 contribute to maintaining synaptic homeostasis and adaptability.

Pathways

GRIA1 is active in the glutamatergic synapse pathway and plays a significant role in long-term potentiation (LTP) an essential mechanism underlying learning and memory. The receptor’s function connects with NMDA receptors and other signaling proteins such as CaMKII which further propagate intracellular signaling cascades. GRIA1's involvement in these pathways highlights its coordination with other proteins to promote proper synaptic function and neural plasticity.

GRIA1 shows associations with neurological conditions such as epilepsy and schizophrenia. Altered expression or function of GRIA1 can disrupt normal ion flow contributing to hyperexcitability and cognitive dysfunctions. This receptor interacts with proteins like PSD-95 part of synaptic scaffolding which may exhibit deviating expression profiles in disorders. Understanding GRIA1’s role and how it relates to other proteins can advance therapeutic strategies for neurological diseases.