Date published: 2025-11-24

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CB1/Cannabinoid Receptor 1/CNR1 Antibody (2F9): sc-293419

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Datasheets
  • CB1/Cannabinoid Receptor 1/CNR1 Antibody (2F9) is a mouse monoclonal IgG2b κ CB1/Cannabinoid Receptor 1/CNR1 antibody, cited in 13 publications, provided at 100 µg/ml
  • raised against amino acids 1-110 representing recombinant partial length CB1 of human origin
  • recommended for detection of CB1 of mouse, rat and human origin by WB, IP and ELISA
  • m-IgG Fc BP-HRP and m-IgG2b BP-HRP are the preferred secondary detection reagents for CB1/Cannabinoid Receptor 1/CNR1 Antibody (2F9) for WB applications. These reagents are now offered in bundles with CB1/Cannabinoid Receptor 1/CNR1 Antibody (2F9) (see ordering information below).

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CB1 Antibody (2F9) is a mouse monoclonal IgG2b kappa light chain antibody that detects CB1 protein of mouse, rat, and human origin by western blotting (WB), immunoprecipitation (IP), and enzyme-linked immunosorbent assay (ELISA). Anti-CB1 antibody (2F9) is available as a non-conjugated format. CB1, also known as cannabinoid receptor 1, is a G-protein coupled receptor predominantly expressed in the brain, where CB1 plays a crucial role in modulating neurotransmitter release and influencing various physiological processes. CB1 localization in the central nervous system is particularly important as CB1 is involved in the regulation of pain, mood, appetite, and memory, making CB1 a significant target for therapeutic interventions in conditions such as chronic pain, anxiety, and neurodegenerative diseases. CB1 undergoes post-translational modifications, including phosphorylation, which can affect CB1 activity and interactions with other proteins. Phosphorylation at serine 316 disrupts CB1 -mediated inhibition of calcium channels, thereby influencing neuronal excitability and signaling pathways. This intricate regulation underscores CB1 importance in maintaining homeostasis within the nervous system and highlights CB1 potential as a target for drug development aimed at modulating cannabinoid effects.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

CB1/Cannabinoid Receptor 1/CNR1 Antibody (2F9) References:

  1. Evidence that 2-arachidonoylglycerol but not N-palmitoylethanolamine or anandamide is the physiological ligand for the cannabinoid CB2 receptor. Comparison of the agonistic activities of various cannabinoid receptor ligands in HL-60 cells.  |  Sugiura, T., et al. 2000. J Biol Chem. 275: 605-12. PMID: 10617657
  2. The endogenous cannabinoid system and brain development.  |  Fernández-Ruiz, J., et al. 2000. Trends Neurosci. 23: 14-20. PMID: 10631784
  3. Reduction of stress-induced analgesia but not of exogenous opioid effects in mice lacking CB1 receptors.  |  Valverde, O., et al. 2000. Eur J Neurosci. 12: 533-9. PMID: 10712632
  4. Molecular cloning of a human cannabinoid receptor which is also expressed in testis.  |  Gérard, CM., et al. 1991. Biochem J. 279 (Pt 1): 129-34. PMID: 1718258
  5. Development of radioligands for in vivo imaging of type 1 cannabinoid receptors (CB1) in human brain.  |  Horti, AG. and Van Laere, K. 2008. Curr Pharm Des. 14: 3363-83. PMID: 19075713
  6. Signal transduction of the CB1 cannabinoid receptor.  |  Turu, G. and Hunyady, L. 2010. J Mol Endocrinol. 44: 75-85. PMID: 19620237
  7. Structure of a cannabinoid receptor and functional expression of the cloned cDNA.  |  Matsuda, LA., et al. 1990. Nature. 346: 561-4. PMID: 2165569
  8. Cannabinoid CB1 Receptor Deletion from Catecholaminergic Neurons Protects from Diet-Induced Obesity.  |  Srivastava, RK., et al. 2022. Int J Mol Sci. 23: PMID: 36293486
  9. Molecular characterization of a peripheral receptor for cannabinoids.  |  Munro, S., et al. 1993. Nature. 365: 61-5. PMID: 7689702
  10. Molecular cloning, expression and function of the murine CB2 peripheral cannabinoid receptor.  |  Shire, D., et al. 1996. Biochim Biophys Acta. 1307: 132-6. PMID: 8679694
  11. Protein kinase C disrupts cannabinoid actions by phosphorylation of the CB1 cannabinoid receptor.  |  Garcia, DE., et al. 1998. J Neurosci. 18: 2834-41. PMID: 9526000
  12. Unresponsiveness to cannabinoids and reduced addictive effects of opiates in CB1 receptor knockout mice.  |  Ledent, C., et al. 1999. Science. 283: 401-4. PMID: 9888857

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

CB1/Cannabinoid Receptor 1/CNR1 Antibody (2F9)

sc-293419
100 µg/ml
$316.00

CB1/Cannabinoid Receptor 1/CNR1 Antibody (2F9): m-IgG Fc BP-HRP Bundle

sc-540290
100 µg Ab; 10 µg BP
$354.00

CB1/Cannabinoid Receptor 1/CNR1 Antibody (2F9): m-IgG2b BP-HRP Bundle

sc-549784
100 µg Ab; 10 µg BP
$354.00

Hello, I need to order CB1 and CB2 antibodies. Do you also provide positive and negative samples? I need the antibodies doing immunohistochemistry (IHC). Would the antibodies work for IHC?

Asked by: Farideh
Thank you for your question. We do not offer positive and negative tissue samples for IHC. This antibody is not currently recommended for IHC. We do offer an alternative, CB1 Antibody (C-11): sc-518035. This primary antibody is recommended and warrantied for IF (immunofluorescent staining of fresh or frozen tissues or cells fixed in methanol or acetone), however we are still gathering data to show on our website. For CB2, we offer the following, CB2 Antibody (3C7): sc-293188. Please note that neither one of these CB1 or CB2 antibodies has been tested yet on formalin-fixed paraffin-embedded tissues sections, and so IHC(P) is not yet a recommended application. Please check back for updates!
Answered by: Technical Support
Date published: 2019-02-02

For Western Blot, is it recommended to use denatured or non-denatured conditions with CB1 (2F9): sc-293419 antibody?

Asked by: Germaine
Thank you for your question. We recommend this antibody for use in denatured Western Blot conditions. It has not been validated for use in non-denatured conditions. Please contact our Technical Service Department for further details or inquiries.
Answered by: Technical Support
Date published: 2021-06-29
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Rated 4 out of 5 by from Very GoodWe have tested a free sample and we have obtained very good results by Western blotting, with homogenates of rat hippocampus, using 1:500 dilution.
Date published: 2022-11-03
Rated 4 out of 5 by from Tested for WBIt works Ok for WB. I had to adjust the concentrations, best results with dilution at 1:500.
Date published: 2022-03-15
Rated 4 out of 5 by from antibody works wellThis antibody works well, but the molecular weight of CB1 does not show up at 50 kDa as the figure has indicated. CB1 is highly glycosylated and it appears at around 65 kDa although the theoretical molecular weight of CB1 is around 50 kDa. See this paper: J Neurochem. 2017, 142(4):521-533
Date published: 2021-10-23
Rated 4 out of 5 by from IHC and immunofluorescence for huan brain tissuesIHC for human brain tissues, which were formalin-fixed, paraffin-embedded. Brown color is CB1R. Immunofluorescence for human brain tissues, which were formalin-fixed, paraffin-embedded. Red color is CB1R, green color is Iba1(microglia cell maker).
Date published: 2018-09-23
Rated 5 out of 5 by from much better than beforework well in lysate from mouse brain cortex with a single specific band at expected mw ( detected additional band at 42 kD, not tested for possible upper bands),although we got not so strong signal considering the receptor brain expression
Date published: 2018-04-13
Rated 1 out of 5 by from Not working for Brain tissue ImmunoHistologyTried the Sample test for Fluorescence ImmunoHistology -Brain perfused with 4% PFA, transcardially -non-embedded free-floting section (40um) -"Antigene retrieval" at 80° in 10mM NatriumCitrate -PBS buffer -Concentration 1:100---Not tried for WB
Date published: 2018-01-04
Rated 5 out of 5 by from High specificity with dilutions around 1:400This antibody works well in Western blot (1:400) for mouse brain in alcoholism model
Date published: 2017-12-25
Rated 5 out of 5 by from High specificity with dilutions around 1:200This antibody works well in Western blot (1:200) and immunohistochemistry (1:100) for placental explants
Date published: 2017-05-09
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CB1/Cannabinoid Receptor 1/CNR1 Antibody (2F9) is rated 4.0 out of 5 by 8.
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