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Rabbit Anti-ACCN2/FITC Conjugated antibody
background:
Cation channel with high affinity for sodium, which is gated by extracellular protons and inhibited by the diuretic amiloride. Also permeable for Ca(2+), Li(+) and K(+). Generates a biphasic current with a fast inactivating and a slow sustained phase. Mediates glutamate-independent Ca(2+) entry into neurons upon acidosis. This Ca(2+) overloading is toxic for cortical neurons and may be in part responsible for ischemic brain injury. Heteromeric channel assembly seems to modulate channel properties. Functions as a postsynaptic proton receptor that influences intracellular Ca(2+) concentration and calmodulin-dependent protein kinase II phosphorylation and thereby the density of dendritic spines. Modulates activity in the circuits underlying innate fear.
Function:
Cation channel with high affinity for sodium, which is gated by extracellular protons and inhibited by the diuretic amiloride. Also permeable for Ca(2+), Li(+) and K(+). Generates a biphasic current with a fast inactivating and a slow sustained phase. Mediates glutamate-independent Ca(2+) entry into neurons upon acidosis. This Ca(2+) overloading is toxic for cortical neurons and may be in part responsible for ischemic brain injury. Heteromeric channel assembly seems to modulate channel properties. Functions as a postsynaptic proton receptor that influences intracellular Ca(2+) concentration and calmodulin-dependent protein kinase II phosphorylation and thereby the density of dendritic spines. Modulates activity in the circuits underlying innate fear.
Subunit:
Homotrimer or heterotrimer with other ASIC proteins. Interacts with PRKCABP and ACCN1. Interacts with STOM.
Subcellular Location:
Cell membrane; Multi-pass membrane protein. Note=Localizes in synaptosomes at dendritic synapses of neurons. Colocalizes with DLG4.
Tissue Specificity:
Expressed in brain areas receiving strong excitatory corticofugal input. In hippocampus, expressed in the hilus of the dentate gyrus. In the cerebral cortex expressed in anterior and posterior cingulate cortex, sensory and motor cortices. In the sensory cortex strongest expression is detected in the whisker barrel field. In sensorimotor and cingulate cortex expression is elevated in layer III. Also expressed in basal ganglia, striatum, ventral pallidum, olfactory tubercle, and nucleus accumbens. Weakly expressed in thalamus with the exception of the habenula and the medial septal nuclei. In olfactory bulb, preferentially expressed in the glomerular layer, within glomeruli. Expressed in cerebellum in the molecular and granule cell layers. Strongly expressed in amygdala complex, particularly in the lateral and basolateral nuclei. Isoform 1 is more abundant in brain compared to isoform 2 (at protein level). Expressed in the nodose ganglion and dorsal root ganglion. Expressed in dendritic spine cells.
Post-translational modifications:
Phosphorylation by PKA regulates interaction with PRKCABP and subcellular location. Phosphorylation by PKC may regulate the channel.
Similarity:
Belongs to the amiloride-sensitive sodium channel (TC 1.A.6) family. ACCN2 subfamily.
Database links:
Entrez Gene: 41 Human
Entrez Gene: 11419 Mouse
Entrez Gene: 79123 Rat
Omim: 602866 Human
SwissProt: P78348 Human
SwissProt: Q6NXK8 Mouse
SwissProt: P55926 Rat
Unigene: 274361 Human
Unigene: 88107 Mouse
Unigene: 37385 Rat
Important Note:
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
ASIC1也是ASICs一类胞外质子激活阳离子通道蛋白，主要分布于神经系统，参与神经生理生化及神经损伤与退变的很多生理功能。
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