Genetic mapping of adrenergic receptor genes in humans


We have genetically mapped the genes encoding four human adrenergic receptors (ARs) of subtypes α1C, α2A, α2B, and β1, which are prototypic G protein coupled receptors that mediate the physiological effects of neurotransmitters, hormones, and drugs. We placed these genes onto the Cooperative Human Linkage Center (CHLC) and Genethon framework maps, within confidence intervals with greater than 1000∶1 odds. With multipoint analysis the α1C gene (locus ADRA1C) mapped to the interval between NEFL and D8S283; α2-C4, the gene encoding the α2C AR (locus ADRA2C), mapped to the interval between D4S126 and D4S62; and the α2-C10 (α2A AR)/β1 haplotype (loci ADRA2A/ ADRB1) mapped to the interval between D10S259 and D10S187. A fifth AR gene, β2, yielded significant LOD scores with markers on the long arm of chromosome 5; however, this locus (ADRB2) could not be mapped to any specific interval with odds of greater than 1000∶1. The two AR genes that are completely linked, α2-C10 and β1, were oriented on their shared 225-kb genomic fragment relative to the direction of transcription, with β1 being 5′ to α2-C10. The positioning of these genes on high-density framework maps allows them to be tested as candidates in a spectrum of diseases that might involve AR dysfunction.

DOI: 10.1007/BF00231616

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@article{Hoehe1995GeneticMO, title={Genetic mapping of adrenergic receptor genes in humans}, author={Margret R. Hoehe and B. Otterud and W. T. Hsieh and Manuel M{\'e}ndez Mart{\'i}nez and D. Stauffer and John Holik and Wade H. Berrettini and William Byerley and Elliot S. Gershon and J. M. Lalouel and M. Leppert}, journal={Journal of Molecular Medicine}, year={1995}, volume={73}, pages={299-306} }