CGRP1 Antibody (BLR159J)

Western Blot: CGRP Antibody (BLR159J) [NBP3-14734] - Whole cell lysate (50 ug) from NIH 3T3, CT26, NIH 3T3 + 1 ug purified mouse CGRP, TCMK-1, and BW5147.3 cells prepared using NETN lysis buffer. Secondary: HRP-conjugated goat anti-rabbit IgG. Chemiluminescence with an exposure time of 30 seconds. Lower Panel: Rabbit anti-Actin recombinant monoclonal antibody.

Immunohistochemistry: CGRP Antibody (BLR159J) [NBP3-14734] - Rabbit anti-CGRP1 recombinant monoclonal antibody. Secondary: HRP-conjugated goat anti-rabbit IgG.

• Reactivity: Mu
• Applications: WB, IHC
• Clone: BLR159J
• Clonality: Monoclonal
• Host: Rabbit
• Conjugate: Unconjugated

CGRP1 Antibody (BLR159J) Summary

• Description: Novus Biologicals Rabbit CGRP1 Antibody (BLR159J) (NBP3-14734) is a recombinant monoclonal antibody validated for use in IHC and WB. All Novus Biologicals antibodies are covered by our 100% guarantee.
• Additional Information: Recombinant Monoclonal
• Immunogen: between residue 75 and 125
• Clonality: Monoclonal
• Host: Rabbit
• Gene: CALCA
• Purity: >95%

Applications/Dilutions

• Dilutions:
  • Immunohistochemistry
  • Western Blot

Packaging, Storage & Formulations

• Storage: Store at 2 - 8 C / 1 year from date of receipt
• Buffer: Borate Buffered Saline (BBS) pH 8.2 with 0.1% BSA and
• Preservative: 0.09% Sodium Azide
• Purity: >95%

Alternate Names for CGRP1 Antibody (BLR159J)

• a-CGRP
• alpha-CGRP
• alpha-type CGRP
• CALCA
• calcitonin gene-related peptide I
• calcitonin/calcitonin-related polypeptide, alpha
• calcitonin; calcitonin gene-related peptide 1
• CGRP 1
• CGRP alpha
• CGRP I
• CGRP1
• CGRP-I

Background

Calcitonin gene-related peptide (CGRP) is a 37-amino acid neuropeptide that functions as a vasodilator, has an important role in pain pathways, and has become a target for migraine treatment (1). The CGRP peptide is characterized by an N-terminal disulfide bond, an alpha-helical structure than plays a role in binding affinity, and an amine C-terminal (1,2). CGRP exists in alpha- and beta-isoforms encoded by genes CALCA (CALC I) and CALCB (CALC II), respectively (1,2). alphaCGRP and betaCGRP only differ by three amino acids, have greater than 90% homology, and each peptide has a theoretical molecular weight of ~3.8 kDa (1,2). alphaCGRP is the predominant peptide form and is expressed in regions of the central and peripheral nervous system, including sensory fibers and the trigeminal ganglia (1,2). Other members of the CGRP gene family includes adrenomedullin, and adrenomedullin 2 (intermedin), amylin, and calcitonin (1,2). When CGRP is released from nerve fibers and blood vessels, it binds a CGRP receptor complex (1-3). The receptor consists of G-protein coupled receptor calcitonin-like receptor (CLR) that is associated with an accessory protein receptor activity-modifying protein (RAMP) (2,3).

Signaling of CGRP and its receptor are involved in vasodilation, neurogenic inflammation, and peripheral sensitization of nociceptors, all of which relate to migraine pathophysiology (2-3). Studies have found that CGRP is both released during migraines and can also induce migraines (3-5). Under normal conditions CGRP levels are typical and neurotransmission is relative; however, migraine triggers including light and sound can increase CGRP levels, enhance neurotransmission, and alter the pain and sensory aversions associated with migraines (2). Given its role, CGRP and its receptor have been the target of many migraine therapeutics including small molecule agonists called gepants and monoclonal antibodies (3-5). Ubrogepant and Rimegepant, two small molecule CGRP receptor agonists, have been FDA approved while another agonist, Atogepant, is ongoing in clinical trials (3,5). Additionally, four monoclonal antibodies against either CGRP or its receptor that are used to block signaling have been FDA approved: Eptinezumab, Fremanezumab, Galcanezumab, and Erenumab (3-5).

References

1. Russell, F. A., King, R., Smillie, S. J., Kodji, X., & Brain, S. D. (2014). Calcitonin gene-related peptide: physiology and pathophysiology. Physiological reviews, 94(4), 1099-1142. https://doi.org/10.1152/physrev.00034.2013

2. Russo A. F. (2015). Calcitonin gene-related peptide (CGRP): a new target for migraine. Annual review of pharmacology and toxicology, 55, 533-552. https://doi.org/10.1146/annurev-pharmtox-010814-124701

3. Wattiez, A. S., Sowers, L. P., & Russo, A. F. (2020). Calcitonin gene-related peptide (CGRP): role in migraine pathophysiology and therapeutic targeting. Expert opinion on therapeutic targets, 24(2), 91-100. https://doi.org/10.1080/14728222.2020.1724285

4. Deen, M., Correnti, E., Kamm, K., Kelderman, T., Papetti, L., Rubio-Beltran, E., Vigneri, S., Edvinsson, L., Maassen Van Den Brink, A., & European Headache Federation School of Advanced Studies (EHF-SAS) (2017). Blocking CGRP in migraine patients - a review of pros and cons. The journal of headache and pain, 18(1), 96. https://doi.org/10.1186/s10194-017-0807-1

5. de Vries, T., Villal0n, C. M., & MaassenVanDenBrink, A. (2020). Pharmacological treatment of migraine: CGRP and 5-HT beyond the triptans. Pharmacology & therapeutics, 211, 107528. https://doi.org/10.1016/j.pharmthera.2020.107528

Limitations

This product is for research use only and is not approved for use in humans or in clinical diagnosis. Primary Antibodies are guaranteed for 1 year from date of receipt.

Bioinformatics

• Gene Symbol: CALCA