Background: Intron 2 of CNR1 gene contains multiple disease-associated SNPs.Results: Allelic variants of a novel enhancer in CNR1 intron 2 affect its MAPK response in hypothalamus and hippocampus.Conclusion: Alleles of enhancer may be functionally linked to obesity and addictive behavior.Significance: Understanding the effects of CNR1 polymorphisms on gene regulation will accelerate understanding of human disease.
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