Abstract
An alpha 2-adrenergic receptor subtype has been cloned from a human kidney cDNA library using the gene for the human platelet alpha 2-adrenergic receptor as a probe. The deduced amino acid sequence resembles the human platelet alpha 2-adrenergic receptor and is consistent with the structure of other members of the family of guanine nucleotide-binding protein-coupled receptors. The cDNA was expressed in a mammalian cell line (COS-7), and the alpha 2-adrenergic ligand [3H]rauwolscine was bound. Competition curve analysis with a variety of adrenergic ligands suggests that this cDNA clone represents the alpha 2B-adrenergic receptor. The gene for this receptor is on human chromosome 4, whereas the gene for the human platelet alpha 2-adrenergic receptor (alpha 2A) lies on chromosome 10. This ability to express the receptor in mammalian cells, free of other adrenergic receptor subtypes, should help in developing more selective alpha-adrenergic ligands.
MeSH Terms
Amino Acid Sequence
Animals
Base Sequence
Cell Line
Chromosomes, Human, Pair 4
Cloning, Molecular
DNA/genetics
Genes
Humans
Kidney/metabolism
Kinetics
Models, Molecular
Molecular Sequence Data
Protein Conformation
Receptors, Adrenergic, alpha/genetics,metabolism
Transcription, Genetic
Chemicals
Receptors, Adrenergic, alpha
DNA
Authors & Affiliations
6 authors, click to expand affiliations / ORCID
Regan J W
Howard Hughes Medical Institute, Duke University Medical Center, Department of Medicine, Durham, NC 27710.
Kobilka T S
Yang-Feng T L
Caron M G
Lefkowitz R J
Kobilka B K
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