Biology:Alpha-1B adrenergic receptor

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Short description: Protein-coding gene in the species Homo sapiens


A representation of the 3D structure of the protein myoglobin showing turquoise α-helices.
Generic protein structure example

The alpha-1B adrenergic receptor1B-adrenoreceptor), also known as ADRA1B, is an alpha-1 adrenergic receptor, and also denotes the human gene encoding it.[1] The crystal structure of the α1B-adrenergic receptor has been determined in complex with the inverse agonist (+)-cyclazosin.[2]

Receptor

There are 3 alpha-1 adrenergic receptor subtypes: alpha-1A, -1B and -1D, all of which signal through the Gq/11 family of G-proteins and different subtypes show different patterns of activation. They activate mitogenic responses and regulate growth and proliferation of many cells.

Gene

This gene encodes alpha-1B-adrenergic receptor, which induces neoplastic transformation when transfected into NIH 3T3 fibroblasts and other cell lines. Thus, this normal cellular gene is identified as a protooncogene. This gene comprises 2 exons and a single large intron of at least 20 kb that interrupts the coding region.[1]

Ligands

Antagonists

Interactions

Alpha-1B adrenergic receptor has been shown to interact with AP2M1.[4] A role in regulation of dopaminergic neurotransmission has also been suggested.[5][6]

See also

References

  1. 1.0 1.1 "Entrez Gene: ADRA1B adrenergic, alpha-1B-, receptor". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=147. 
  2. "Crystal structure of the α1B-adrenergic receptor reveals molecular determinants of selective ligand recognition". Nature Communications 13 (1): 382. January 2022. doi:10.1038/s41467-021-27911-3. PMID 35046410. Bibcode2022NatCo..13..382D. 
  3. "Enhancement of apomorphine-induced penile erection in the rat by a selective alpha(1D)-adrenoceptor antagonist". Br. J. Pharmacol. 136 (5): 701–8. 2002. doi:10.1038/sj.bjp.0704773. PMID 12086979. 
  4. "The adaptor complex 2 directly interacts with the alpha 1b-adrenergic receptor and plays a role in receptor endocytosis". J. Biol. Chem. 278 (21): 19331–40. May 2003. doi:10.1074/jbc.M302110200. PMID 12644451. 
  5. "Alpha1b-adrenergic receptors control locomotor and rewarding effects of psychostimulants and opiates". J. Neurosci. 22 (7): 2873–84. April 2002. doi:10.1523/jneurosci.22-07-02873.2002. PMID 11923452. 
  6. "5-HT2A and alpha1b-adrenergic receptors entirely mediate dopamine release, locomotor response and behavioural sensitization to opiates and psychostimulants". Eur. J. Neurosci. 20 (11): 3073–84. December 2004. doi:10.1111/j.1460-9568.2004.03805.x. PMID 15579162. 

External links

Further reading