Pore-forming subunit of Nav1.5, a voltage-gated sodium (Nav) channel that directly mediates the depolarizing phase of action potentials in excitable membranes. Navs, also called VGSCs (voltage-gated sodium channels) or VDSCs (voltage-dependent sodium channels), operate by switching between closed and open conformations depending on the voltage difference across the membrane. In the open conformation they allow Na(+) ions to selectively pass through the pore, along their electrochemical gradient. The influx of Na(+) ions provokes membrane depolarization, initiating the propagation of electrical signals throughout cells and tissues . Nav1.5 is the predominant sodium channel expressed in myocardial cells and it is responsible for the initial upstroke of the action potential in cardiac myocytes, thereby initiating the heartbeat . Required for normal electrical conduction including formation of the infranodal ventricular conduction system and normal action potential configuration, as a result of its interaction with XIRP2 (By similarity). .

q14524

Sodium channel protein type 5 subunit alpha (Sodium channel protein cardiac muscle subunit alpha) (Sodium channel protein type V subunit alpha) (Voltage-gated sodium channel subunit alpha Nav1.5) (hH1),SCN5A,Sodium channel protein type V subunit alpha, SCN5A, Sodium channel protein type 5 subunit alpha, hH1, Voltage-gated sodium channel subunit alpha Nav1.5, Sodium channel protein cardiac muscle subunit alpha

Human

ELISA

ELISA 1:5000-1:20000

227kD

Mouse

Monoclonal

SA1081

IgG2a, kappa

Protein A/G purified from cell culture supernatant.

>95% as determined by SDS-PAGE.

0.01M PBS, pH 7.4.

1 mg/ml

Use a manual defrost freezer and avoid repeated freeze-thaw cycles. Store at 4℃ short term (1-2 weeks). Store at -20℃ 12 months.