Alexa Fluor® 555 Anti-Gephyrin antibody [EPR12651(B)]

Supplementary info

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

Activity summary

Gephyrin also known as GPHN is a multifunctional protein integral to synaptic transmission. Weighing approximately 93 kDa it facilitates the anchoring of inhibitory neurotransmitter receptors at postsynaptic sites. This protein is expressed primarily in central nervous system tissues including the brain and spinal cord. Gephyrin performs its mechanical role by forming a scaffold to maintain GABAergic and glycinergic receptors' proper positioning and function.

Biological function summary

Gephyrin's function extends beyond receptor clustering. It plays a part in the larger postsynaptic density complex. This scaffolding capability allows gephyrin to organize inhibitory synapses critical for maintaining neuronal excitability and plasticity. The protein contributes by tethering receptors to the cytoskeleton which stabilizes synaptic structures and allows dynamic interactions with other proteins in the synapse.

Pathways

Gephyrin interacts with the inhibitory signaling pathway. This pathway includes important proteins like GABA receptors and glycine receptors which mediate inhibitory synaptic transmission in the central nervous system. Gephyrin's interactions facilitate the formation of gephyrin clusters which influence synaptic inhibition by crosslinking with tubulin and microtubules significantly impacting neuronal signaling.

Associated diseases and disorders

Disruptions in gephyrin function link to neurological conditions such as epilepsy and schizophrenia. Mutations or alterations in gephyrin expression affect receptor clustering which impacts synapse formation and can result in dysfunctional neural networks. In schizophrenia gephyrin associates with other synaptic proteins such as neuroligin and neurexins indicating potential contributions to synaptic abnormalities seen in the disorder.