Anti-CACNA1H antibody

Supplementary info

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

Activity summary

CACNA1H also known as Cav3.2 or T-type calcium channel alpha-1H subunit functions as a voltage-dependent calcium channel. The protein plays a role in the influx of calcium ions into cells. It has a molecular mass of approximately 260.7 kDa. CACNA1H expresses most abundantly in the central nervous system although you can also find it in the heart and various other tissues. This channel is part of the larger Cav3 family of T-type calcium channels which includes other subunits like Cav3.1 and Cav3.3.

Biological function summary

This calcium channel regulates numerous cellular processes through its role in calcium signaling. It does not form part of a complex but still interacts closely with various signaling molecules to influence activities such as neurotransmitter release and muscle contraction. By modulating membrane potentials and synaptic transmission CACNA1H plays a significant direct role in neuronal excitability and rhythmic activities.

Pathways

CACNA1H interacts within the calcium signaling and neurotransmission pathways. In these pathways it regulates calcium ion homeostasis and neuronal excitability working alongside other channels like L-type and N-type calcium channels. CACNA1H affects the excitation-contraction coupling critical for smooth muscle function interlinking with proteins such as calmodulin that respond to changes in calcium ion concentration.

Associated diseases and disorders

CACNA1H has been linked to epilepsy and neuropathic pain. In epilepsy mutations in CACNA1H can disrupt normal calcium flow affecting neuronal firing patterns and contributing to seizures. Its interaction with other ion channels like SCN1A further influences epileptic manifestations. Mutations may also contribute to neuropathic pain by altering pain threshold and response through its role in pain pathway modifications.