|Calculated MW||73226 Da|
|Homology||Mouse - identical; human - 11/17 amino acid residues identical.|
|Other Names||Voltage-dependent L-type calcium channel subunit beta-2, CAB2, Calcium channel voltage-dependent subunit beta 2, Cacnb2, Cacnlb2|
|Related products for control experiments||Control peptide antigen (supplied with the antibody free of charge).|
|Target/Specificity||Peptide (C)HEHVDRYVPHREHNHRE, corresponding to amino acid residues 571-587 of rat Cav־²2 (Accession Q8VGC3). Intracellular, C-terminus.|
|Peptide Confirmation||Confirmed by mass-spectrography and amino acid analysis.|
|Format||Affinity purified antibody, lyophilized powder|
|Reconstitution||25 µl, 50 µl or 0.2 ml deionized water, depending on the sample size.|
|Antibody Concentration After Reconstitution||0.85 mg/ml.|
|Storage Before Reconstitution||Lyophilized powder can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.|
|Storage After Reconstitution||The reconstituted solution can be stored at 4ºC for up to 2 weeks. For longer periods, small aliquots should be stored at -20ºC or below. Avoid multiple freezing and thawing. The further dilutions should be made using a carrier protein such as BSA (1%). Centrifuge all antibody preparations before use (10000 × g 5 min).|
|Control Antigen Storage Before Reconstitution||Lyophilized powder can be stored intact at room temperature for several weeks. For longer periods, it should be stored at -20°C.|
|Control Antigen Reconstitution||100 µl DDW.|
|Control Antigen Storage After Reconstitution||-20ºC.|
|Preadsorption Control||1 µg peptide per 1 µg antibody.|
|Formulation||Lyophilized powder. Reconstituted antibody contains phosphate buffered saline (PBS), pH 7.4, 1% BSA, 0.05% NaN3.|
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Provided below are standard protocols that you may find useful for product applications.
Voltage-dependent Ca2+ channels are a family of membrane proteins that allow cells to couple electrical activity to intracellular Ca2+ signaling1. Voltage-gated Ca2+ channels are classified as T, L, N, P, Q and R, and are distinguished by their sensitivity to pharmacological blocks, single-channel conductance kinetics, and voltage-dependence. On the basis of their voltage activation properties, voltage-gated Ca2+ subtypes can be further divided into two broad groups: the low (T-type) and high (L, N, P, Q and R-type) threshold-activated channels2. The activity of the channel pore is modulated by 4 tightly-coupled subunits: an intracellular β subunit; a transmembrane γ subunit; and a disulphide-linked complex of α2 and δ subunits3. There are four distinct β subunits: β1, β2, β3 and β44. There are 4 splice variants of the β2 subunit: β2a, β2b, β2c and β2d. β2a and β2b are expressed in heart, aorta and brain, and are 606- and 632-residue proteins, respectively. β2c and β2d (655 and 604 residues, respectively) are expressed in brain, and recent studies show beta-2c to be also expressed in heart. All splice variants differ in their N-terminal regions5.
References 1. Catterall, W.A. et al. (2003) Pharmacol. Rev. 55, 579. 2. Qin, N. et al. (2002) Mol. Pharmacol. 62, 485. 3. De Jongh, K.S. et al. (1990) J. Biol. Chem. 265, 14738. 4. Pichler, M. et al. (1997) J. Biol. Chem. 272, 13877. 5. Yamada, Y. et al. (2001) J. Biol. Chem. 276, 47163.
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