|Other Accession||NP_950238.1, NP_001028.1|
|Other Names||Sodium channel subunit beta-1, SCN1B|
|Format||Synthetic peptide was lyophilized with 100% acetonitrile and is supplied as a powder. Reconstitute with 0.1 ml DI water for a final concentration of 1 mg/ml.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C.|
|Precautions||This product is for research use only. Not for use in diagnostic or therapeutic procedures.|
|Function||Crucial in the assembly, expression, and functional modulation of the heterotrimeric complex of the sodium channel. The subunit beta-1 can modulate multiple alpha subunit isoforms from brain, skeletal muscle, and heart. Its association with neurofascin may target the sodium channels to the nodes of Ranvier of developing axons and retain these channels at the nodes in mature myelinated axons.|
|Cellular Location||Membrane; Single-pass type I membrane protein|
|Tissue Location||The overall expression of isoforms 1 and 2 is very similar. Isoform 1 is abundantly expressed in skeletal muscle, heart and brain. Isoform 2 is highly expressed in brain and skeletal muscle and present at a very low level in heart, placenta, lung, liver, kidney and pancreas. In brain, isoform 2 is most abundant in the cerebellum, followed by the cerebral cortex and occipital lobe, while isoform 1 levels are higher in the cortex compared to the cerebellum. Isoform 2 is expressed in many regions of the brain, including cerebellar Purkinje cells, cortex pyramidal neurons and many of the neuronal fibers throughout the brain (at protein level). Also detected in dorsal root ganglion, in fibers of the spinal nerve and in cortical neurons and their processes (at protein level).|
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Provided below are standard protocols that you may find useful for product applications.
Voltage-gated sodium channels are heteromeric proteinsthat function in the generation and propagation of actionpotentials in muscle and neuronal cells. They are composed of onealpha and two beta subunits, where the alpha subunit provideschannel activity and the beta-1 subunit modulates the kinetics ofchannel inactivation. SCN1B encodes a sodium channel beta-1subunit. Mutations in this gene result in generalized epilepsy withfebrile seizures plus, Brugada syndrome 5, and defects in cardiacconduction. Multiple transcript variants encoding differentisoforms have been found for this gene.
Grover, S., et al. Pharmacogenomics 11(7):927-941(2010)Tan, B.H., et al. Heart Rhythm 7(6):771-778(2010)Casini, S., et al. Cardiovasc. Res. 85(4):691-700(2010)Ogawa, R., et al. Int J Clin Pharmacol Ther 48(2):109-119(2010)Watanabe, H., et al. Circ Arrhythm Electrophysiol 2(3):268-275(2009)
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