Exalpha Biologicals, Inc.

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Exalpha Biologicals, Inc. is now a US distributor for Nordic-Mubio products

Nordic-MUbio develops and manufactures high quality antibody reagents for use in R&D. All our products are manufactured according to strict ISO 9001 quality guidelines, and our focus is on developing antibodies targetting Cell Adhesion, Nuclear and Cytoskeletal Proteins.

Nordic-MUbio is one of the leading antibody companies developing antibodies for zebrafish research – we currently have over 50 antibodies validated for immunofluorescence in zebrafish.

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Akazawa, Y., et al. "Endoplasmic Reticulum Stress Contributes to Helicobacter Pylori VacA-Induced Apoptosis" PLoS ONE 8(12): e82322

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Exalpha Biologicals, Inc.

a1A Calcium Channel

  • Product Code: X2391P
  • Size: 100 µg
  • Availability: In Stock In Stock
  • Price (USD): $304

Cat #

X2391P		 Quantity:      

Data Sheet

Product Name

a1A Calcium Channel


CaV2.1; P/Q-type Voltage-Gated Ca2+ Channel; Cacna1





Product Type

Antigen Immunoaffinity Purified Polyclonal


Human, Rat


Western Blot, Immunohistochemistry


Antigen Immunoaffiinity Purification


100 µg

Price (USD)



Voltage-sensitive calcium channels (VSCCs) mediate the entry of calcium ions into excitable cells and are also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. The isoform alpha-1a gives rise to p and/or q-type calcium currents. P/q-type calcium channels belong to the 'high-voltage activated' (hva) group and are blocked by the funnel toxin (ftx) and by the omega-agatoxin-IVA (omega-aga-IVA). They are however insensitive to dihydropyridines (dhp), and omega- conotoxin-GVIA (omega-ctx-GVIA). voltage-dependent calcium channels are multisubunit complexes, consisting of alpha-1, alpha-2, beta and delta subunits in a 1:1:1:1 ratio. The channel activity is directed by the pore-forming and voltage-sensitive alpha-1 subunit. In many cases, this subunit is sufficient to generate voltage-sensitive calcium channel activity. The auxiliary subunits beta and alpha-2/delta linked by a disulfide bridge regulate the channel activity.


Synthetic peptide derived from the rat 1A calcium channel conjugated to KLH

Positive Control

Rat brain lysate, human brain tissue


Provided as solution in phosphate buffered saline with 0.08% sodium azide

Customer Storage

Product should be stored at -20°C. Aliquot to avoid freeze/thaw cycles

Target Molecular Weight

251 kDa

Product Image

Image Legend

Immunohistochemical staining of normal human brain tissue using alpha1A calcium channel antibody (Cat. No. X2391P) at 15 µg/ml

Database Links:



1. Starr,T.V.B et.al 'Primary structure of a calcium channel that is highly expressed in the rat cerebellum' Proc. Natl. Acad. Sci. U.S.A. 88, 5621-5625 (1991)

2. Snutch,T.Pet.al 'Rat brain expresses a heterogeneous family of calcium channels' Proc. Natl. Acad. Sci. U.S.A. 87 (9), 3391-3395 (1990)

3. Yu,A.S et.al. 'Molecular characterization and nephron distribution of a family of transcripts encoding the pore-forming subunit of Ca2+ channels in the kidney' Proc. Natl. Acad. Sci. U.S.A. 89 (21), 10494-10498 (1992)

4. Hansen PB, , et al.'Vascular smooth muscle cells express the alpha(1A) subunit of a P-/Q-type voltage-dependent Ca(2+)Channel, and It is functionally important in renal afferent arterioles.' Circ Res (United States) 87(10) p896-902 (2000)

5. Stephens,G.I. et.al 'The Cav2.1/alpha1A (P/Q-type) voltage-dependent calcium channel mediates inhibitory neurotransmission onto mouse cerebellar Purkinje cells.' Eur J Neurosci 13(10) 1902-12 (2001)