CaVβ subunits play critical roles in membrane trafficking of the channel complex and regulation of voltage-dependent gating. The CaVβ subunit binds to the endoplasmic reticulum (ER) retention signal in the I-II loop of the α1-subunit, which allows channels to traffic to the surface membrane4. Furthermore, CaVβ subunits not only allow for membrane trafficking of the channel complex, they also can play a role in determining the subcellular localization of channels on the surface membrane5. There are four distinct CaVβ subunits CaVβ1, CaVβ2, CaVβ3 and CaVβ4.n Three splice variants exist for the β1 subunit: β1a, β1b and β1c. β1a is known to be expressed in skeletal muscle and brain, but not in smooth muscle or heart. β1a appears to be important for the functional expression of the α1 subunit in skeletal muscle7. β1b was identified by cloning in rat brain, heart and hippocampus, and differs from β1a by having a deletion of ~50 amino acids at residue 209, and having a 120-residue C-terminal elongation. β1c was cloned from human heart and hippocampus and has the same deletion as β1b, but lacks the C-terminal extension.
应用类型
经验证,该抗体可应用于IH、WB等实验应用,也可用于 IC、IP等实验。
免疫原
CaVBeta1抗体的免疫原肽段为(C)DRATGEHASVHEYPGE。此免疫原序列来源于456-471 位氨基酸残基,该序列来源于大鼠CaVβ1 (Accession编号为P54283)。胞内, adjacent to the C端