CNR1 Antibody

Code CSB-PA007048
Size US$100
Image
  • Western Blot analysis of HT-29 cells using CB1 Polyclonal Antibody
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Product Details

Uniprot No.
Target Names
CNR1
Alternative Names
CNR1; CNR; Cannabinoid receptor 1; CB-R; CB1; CANN6
Raised in
Rabbit
Species Reactivity
Human,Mouse,Rat,Monkey
Immunogen
Synthesized peptide derived from the Internal region of Human CB1.
Immunogen Species
Homo sapiens (Human)
Conjugate
Non-conjugated
Isotype
IgG
Purification Method
The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.
Concentration
It differs from different batches. Please contact us to confirm it.
Buffer
Liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.
Form
Liquid
Tested Applications
WB, IHC, IF, ELISA
Recommended Dilution
Application Recommended Dilution
WB 1:500-1:2000
IHC 1:100-1:300
IF 1:200-1:1000
ELISA 1:10000
Troubleshooting and FAQs
Storage
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

Customer Reviews and Q&A

 Customer Reviews
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Applications : western blot

Sample type: Tissue

Review: Treatment with CBD-enriched extract does not modulate the protein levels of cannabinoid receptors (CB1 or CB2).

By Anonymous

Target Background

Function
G-protein coupled receptor for endogenous cannabinoids (eCBs), including N-arachidonoylethanolamide (also called anandamide or AEA) and 2-arachidonoylglycerol (2-AG), as well as phytocannabinoids, such as delta(9)-tetrahydrocannabinol (THC). Mediates many cannabinoid-induced effects, acting, among others, on food intake, memory loss, gastrointestinal motility, catalepsy, ambulatory activity, anxiety, chronic pain. Signaling typically involves reduction in cyclic AMP. In the hypothalamus, may have a dual effect on mitochondrial respiration depending upon the agonist dose and possibly upon the cell type. Increases respiration at low doses, while decreases respiration at high doses. At high doses, CNR1 signal transduction involves G-protein alpha-i protein activation and subsequent inhibition of mitochondrial soluble adenylate cyclase, decrease in cyclic AMP concentration, inhibition of protein kinase A (PKA)-dependent phosphorylation of specific subunits of the mitochondrial electron transport system, including NDUFS2. In the hypothalamus, inhibits leptin-induced reactive oxygen species (ROS) formation and mediates cannabinoid-induced increase in SREBF1 and FASN gene expression. In response to cannabinoids, drives the release of orexigenic beta-endorphin, but not that of melanocyte-stimulating hormone alpha/alpha-MSH, from hypothalamic POMC neurons, hence promoting food intake. In the hippocampus, regulates cellular respiration and energy production in response to cannabinoids. Involved in cannabinoid-dependent depolarization-induced suppression of inhibition (DSI), a process in which depolarization of CA1 postsynaptic pyramidal neurons mobilizes eCBs, which retrogradely activate presynaptic CB1 receptors, transiently decreasing GABAergic inhibitory neurotransmission. Also reduces excitatory synaptic transmission. In superior cervical ganglions and cerebral vascular smooth muscle cells, inhibits voltage-gated Ca(2+) channels in a constitutive, as well as agonist-dependent manner. In cerebral vascular smooth muscle cells, cannabinoid-induced inhibition of voltage-gated Ca(2+) channels leads to vasodilation and decreased vascular tone. Induces leptin production in adipocytes and reduces LRP2-mediated leptin clearance in the kidney, hence participating in hyperleptinemia. In adipose tissue, CNR1 signaling leads to increased expression of SREBF1, ACACA and FASN genes. In the liver, activation by endocannabinoids leads to increased de novo lipogenesis and reduced fatty acid catabolism, associated with increased expression of SREBF1/SREBP-1, GCK, ACACA, ACACB and FASN genes. May also affect de novo cholesterol synthesis and HDL-cholesteryl ether uptake. Peripherally modulates energy metabolism. In high carbohydrate diet-induced obesity, may decrease the expression of mitochondrial dihydrolipoyl dehydrogenase/DLD in striated muscles, as well as that of selected glucose/ pyruvate metabolic enzymes, hence affecting energy expenditure through mitochondrial metabolism. In response to cannabinoid anandamide, elicits a proinflammatory response in macrophages, which involves NLRP3 inflammasome activation and IL1B and IL18 secretion. In macrophages infiltrating pancreatic islets, this process may participate in the progression of type-2 diabetes and associated loss of pancreatic beta-cells.; Binds both 2-AG and anandamide.; Only binds 2-AG with high affinity. Contrary to its effect on isoform 1, 2-AG behaves as an inverse agonist on isoform 2 in assays measuring GTP binding to membranes.; Only binds 2-AG with high affinity. Contrary to its effect on isoform 1, 2-AG behaves as an inverse agonist on isoform 3 in assays measuring GTP binding to membranes.
Gene References into Functions
  1. The cannabinoid receptor 1 (CNR1) was identified as a direct target gene of miR1273g3pand knockdown of CNR1 restored the phenotypes of LoVo cells transfected with miR1273g3p inhibitor. PMID: 29328379
  2. The Arg82 and Cys126 of CRIP1b are involved in the majority of hydrogen bond interactions with the CB1 receptor and are possible key residues required for interactions between the CB1 receptor and CRIP1b PMID: 28918320
  3. The CB1 pathway is involved in the pathogenesis of shoulder stiffness. It may be a promising target for the treatment of rotator cuff lesions with shoulder stiffness. PMID: 29108858
  4. CB1 receptors are among the most abundant G protein-coupled receptors in the brain that impact on several processes, including fear coping, anxiety, stress, learning, and memory. (Review) PMID: 29058339
  5. CB1 receptor (CB1b) is highly expressed in pancreatic beta-cells and hepatocytes but not in the brain. PMID: 27641999
  6. All of the epithelial layers in 94, 78, 96, 73 and 80% of pterygia cases, exhibited CB1, CB2, TRPV1, TRPV2 and TRPV3 cytoplasmic immunoreactivity, respectively. PMID: 28849159
  7. observed selective alterations of DNA methylation at the promoter of CNR1, the gene coding for the type-1 cannabinoid receptor, in schizophrenic patients with no changes in bipolar or major depressive disorder. In an animal model prefrontal cortex found a significant increase in CNR1 expression and a consistent reduction in DNA methylation at specific CpG sites of gene promoter. PMID: 28108228
  8. This study of single-nucleotide polymorphisms in the cannabinoid receptor gene CNR1 showed that C carriers at rs806374 may be at specific risk for increased odds of cannabis use during the transition out of high school (around age 18). PMID: 28930056
  9. results suggest that palmitoylation of the CB1 receptor finely tunes its interaction with G proteins and serves as a targeting signal for its functional regulation PMID: 28722168
  10. we have associated cannabinoid 1 (CB1) receptor genetic variation rs2180619 (AA, AG, GG), which is located in a potential CNR1 regulatory sequence, with performance in working memory. no differences were found among genotypes while performing each working memory (WM) task. However, the cost of the level of complexity in N-back paradigm was double for GG subjects than for AA subjects. PMID: 27108777
  11. two agonist-bound crystal structures of human CB1 in complex with a tetrahydrocannabinol (AM11542) and a hexahydrocannabinol (AM841) at 2.80 A and 2.95 A resolution, respectively PMID: 28678776
  12. that a genetically modulated balancing of signaling within the CB1-COX-2 pathway may reflect on more or less efficient patterns of prefrontal activity during working memory PMID: 27261878
  13. In cotransfected HEK-293 cells, SSTR5 and CB1R existed in a constitutive heteromeric complex under basal condition, which was disrupted upon agonist treatments. Furthermore, concurrent receptor activation led to preferential formation of SSTR5 homodimer and dissociation of CB1R homodimer. PMID: 27984180
  14. CB1R availability was inversely associated with BMI in homeostatic brain regions such as the hypothalamus and brainstem areas in both patients with food intake disorders(FID) and healthy subjects. However, in FID patients, CB1R availability was also negatively correlated with BMI throughout the mesolimbic reward system. PMID: 27404285
  15. hepatic expression of CB1 and CB2 plays an important role during the progression of fibrosis induced by chronic hepatitis B PMID: 28315398
  16. propose here a possible unifying theory of CB1 receptor functions. PMID: 28334603
  17. Patients with schizophrenia showed increased CB1A expression in cells of the innate immune system and simpler correlation network between cytokines and CBRs expression when compared with controls. PMID: 28011441
  18. our systematic review on potential associations of CNR1 polymorphisms with schizophrenia and its subphenotypes revealed conflicting data, with results tending towards a negative association. PMID: 28099629
  19. Our study disclosed an increased risk of CVS among individuals with AG and GG genotypes of CNR1 rs806380 ( P <0.01), whereas the CC genotype of CNR1 rs806368 was associated with a decreased risk of CVS ( P <0.05). In addition CT and CC genotypes of CNR1 rs806368 were associated with a family history of migraines. PMID: 28349993
  20. U46619 and ANG II may stimulate rapid endothelial release of endocannabinoids (mainly 2-arachidonoylglycerol), leading to CB1 receptor-dependent and/or CB1 receptor-independent vasorelaxation, which in the negative feedback mechanism reduces later agonist-induced vasoconstriction. PMID: 28356298
  21. Data suggest that signaling via endocannabinoids and CNR1/CNR2 plays central role in food intake; the endocannabinoid system regulates bidirectional communication (in the context of energy intake and storage) between the brain and peripheral tissues (adipose tissue, liver, gastrointestinal tract, endocrine pancreas, and skeletal muscle). [REVIEW] PMID: 28246151
  22. Selective estrogen receptor (ER) modulator (SERM) isomers exhibit distinct affinity and selectivity for cannabinoid subtype 1 and 2 receptors (CB1R and CB2Rs). PMID: 27936172
  23. We investigated the relationship between variation in the CNR1, CNR2, and FAAH genes and change in primary anxiety disorder severity. Five SNPs were nominally associated with a poorer treatment response (rs806365 [CNR1]; rs2501431 [CNR2]; rs2070956 [CNR2]; rs7769940 [CNR1]; rs2209172 [FAAH]) and one with a more favorable response (rs6928813 [CNR1]). PMID: 27346075
  24. we investigated whether the effect of the CB1 receptor coding CNR1 gene on migraine and its symptoms is conditional on life stress. We covered the CNR1 gene with 11 SNPs. None of the SNPs showed main genetic effects on possible migraine or its symptoms. 5 SNPs showed nominally significant interaction with recent negative life events on headache with nausea PMID: 27762084
  25. major allele homozygotes in rs806379 experienced significantly greater nicotine deprivation-induced reductions in cognitive control as indicated by enhanced alpha-1 resting EEG power. Analysis of the 'TAG' haplotype on CNR1 predicts reduced mRNA expression in postmortem analyses of the brain. The rs806379 findings suggest that CNR1 antagonism may mitigate the influence of nicotine deprivation on cognitive disruption. PMID: 27453054
  26. These findings suggest that Gi1 interacts only with active GPCRs and that the well known high speed of GPCR signal transduction does not require preassembly between G proteins and GPCRs. PMID: 28438833
  27. the presence and differential distribution of fatty acid amide hydrolase (FAAH) and monoglyceride lipase (MGLL) in relation to CB1 during the maturation of human oocytes, was investigated. PMID: 26948343
  28. CRIP1a can compete with beta-arrestins for interaction with C-terminal CB1R domains that could affect agonist-driven, beta-arrestin-mediated internalization of the CB1R. PMID: 27895162
  29. These findings indicate that D2 antagonism, like D2 agonists, change agonist-mediated CB1 coupling and signaling. PMID: 27053685
  30. there was a significant reduction in CB1 receptor gene expression levels in cancer tissue compared to normal surrounding mucosa of patients with CRC, confirming that in cancer the "protective" action of the CB1 receptor is lost. PMID: 28245562
  31. This study demonstrated that CB1 receptor up regulation in Human Stroke. PMID: 27425766
  32. We hypothesize that high expression levels of CNR1 provide tumor susceptibility to the antitumor effects of circulating endocannabinoids like anandamide, resulting in tumor involution of pediatric low-grade gliomas PMID: 27613640
  33. evaluation of CB1R expression status in biopsy specimens of esophageal squamous cell carcinoma using immunohistochemistry might be clinically useful for prediction of metastasis to lymph nodes and distant organs PMID: 27976824
  34. Data indicate that mobile tongue squamous cell carcinoma (SCC) patients presenting enhanced cannabinoid receptors CB1R, CB2R, or concomitant CB1R/CB2R expression showed significantly longer overall and disease-free survival times compared to those with low expression. PMID: 26459312
  35. This is the first demonstration that the fibroblasts of the muscular fasciae express CB1 and CB2. PMID: 27349320
  36. Epistatic interaction between the 1359 G/A polymorphism of the CNR1 gene and the DRD2 gene polymorphisms may be associated with cannabis addiction phenotype in a Turkish population. PMID: 26833047
  37. in the group of all HD patients, a significantly higher incidence of GA genotype and lower incidence in GG genotype in the polymorphism rs806381s were revealed versus the control group (p = 0.04). It seems that polymorphisms of the CNR1 gene are not associated with uremic pruritus. PMID: 27034934
  38. Results suggest that CNR1 SNP genotype is associated with increased total cholesterol and Myocardial Infarction. PMID: 25270105
  39. this study presents the 2.8 A crystal structure of human CB1 in complex with AM6538, a stabilizing antagonist, synthesized and characterized for this structural study. PMID: 27768894
  40. The cannabinoid 1 receptor polymorphism rs1049353, is involved in the processing of negative facial expressions with relation to anger in adolescence. PMID: 26527537
  41. Novel finding of the present study is the association of the mutant groups of CNR1 genotypes with lower levels of triglycerides and higher levels of HDL-cholesterol than the wild-type group. PMID: 25682784
  42. The present study reports an association of the G1359A and A1359A CNR1 genotypes with lower levels of triglycerides and higher levels of HDL-cholesterol in obese females. PMID: 25664923
  43. In the adult human ependyma, which usually shows central canal absence, CB1 may play a different role by modulating astrocyte functions PMID: 26634814
  44. Induction of apoptosis was mediated via CB1 as well as CB2, and expression of CB receptors was a prerequisite for therapy response in our models. PMID: 26775260
  45. CNR1 polymorphisms are not associated with obesity and metabolic disorders, including insulin resistance, in PCOS women. PMID: 24971918
  46. data support an association between endocannabinoid system activity (cb1) and alcoholism. PMID: 26253623
  47. Human lung-resident macrophages express CB1 and CB2 receptors whose activation inhibits the release of angiogenic and lymphangiogenic factors PMID: 26467187
  48. Studies indicate that crosstalk between cannabinoid receptor type 1 (CB1) and transient receptor potential vanilloid 1 (TRPV1) modulates pain and inflammation in arthritis. PMID: 26343051
  49. The minor C allele of rs2023239 showed an independent protective effect against lifetime Manic Depressive Disorder. PMID: 26331953
  50. CNR1 polymorphism and child physical abuse GxE interaction predicts adult PTSD threat symptoms. PMID: 26717543

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Involvement in disease
Obesity (OBESITY)
Subcellular Location
Cell membrane; Multi-pass membrane protein. Membrane raft. Mitochondrion outer membrane. Cell projection, axon. Cell junction, synapse, presynapse.
Protein Families
G-protein coupled receptor 1 family
Tissue Specificity
Widely expressed, with highest levels in fetal and adult brain. Expression levels of isoform 2 and isoform 3 are much lower than those of isoform 1.
Database Links

HGNC: 2159

OMIM: 114610

KEGG: hsa:1268

STRING: 9606.ENSP00000358511

UniGene: Hs.75110

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