Biology:VIPR1

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Short description: Protein-coding gene in humans


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

Vasoactive intestinal polypeptide receptor 1 also known as VPAC1, is a protein, that in humans is encoded by the VIPR1 gene.[1] VPAC1 is expressed in the brain (cerebral cortex, hippocampus, amygdala), lung, prostate, peripheral blood leukocytes, liver, small intestine, heart, spleen, placenta, kidney, thymus and testis.[2][3][4]

Function

VPAC1 is a receptor for vasoactive intestinal peptide (VIP), a small neuropeptide. Vasoactive intestinal peptide is involved in smooth muscle relaxation, exocrine and endocrine secretion, and water and ion flux in lung and intestinal epithelia. Its actions are effected through integral membrane receptors associated with a guanine nucleotide binding protein which activates adenylate cyclase.[1]

VIP acts in an autocrine fashion via VPAC11 to inhibit megakaryocyte proliferation and induce proplatelet formation.[5][6]

Clinical significance

Patients with idiopathic achalasia show a significant difference in the distribution of SNPs affecting VIPR1.[7]

VIP and PACAP levels were decreased in anterior vaginal wall of stress urinary incontinence and pelvic organ prolapse patients, they may participate in the pathophysiology of these diseases.[8]

See also

References

  1. 1.0 1.1 "Entrez Gene: VIPR1 vasoactive intestinal peptide receptor 1". https://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=7433. 
  2. "Functional expression and tissue distribution of a novel receptor for vasoactive intestinal polypeptide". Neuron 8 (4): 811–9. Apr 1992. doi:10.1016/0896-6273(92)90101-I. PMID 1314625. 
  3. "Two receptors for vasoactive intestinal polypeptide with similar specificity and complementary distributions". Endocrinology 135 (6): 2662–80. Dec 1994. doi:10.1210/endo.135.6.7988457. PMID 7988457. 
  4. "Structure, expression, and chromosomal localization of the type I human vasoactive intestinal peptide receptor gene". Proceedings of the National Academy of Sciences of the United States of America 92 (7): 2939–43. Mar 1995. doi:10.1073/pnas.92.7.2939. PMID 7708752. Bibcode1995PNAS...92.2939S. 
  5. "The role of vasoactive intestinal peptide (VIP) in megakaryocyte proliferation". Journal of Molecular Neuroscience 37 (2): 160–7. Feb 2009. doi:10.1007/s12031-008-9119-x. PMID 18663606. 
  6. "PACAP and its receptor VPAC1 regulate megakaryocyte maturation: therapeutic implications". Blood 111 (4): 1885–93. Feb 2008. doi:10.1182/blood-2007-06-098558. PMID 18000164. 
  7. "Age-dependent association of idiopathic achalasia with vasoactive intestinal peptide receptor 1 gene". Neurogastroenterology and Motility 21 (6): 597–602. Jun 2009. doi:10.1111/j.1365-2982.2009.01284.x. PMID 19309439. 
  8. "Role of vasoactive intestinal peptide and pituitary adenylate cyclase activating polypeptide in the vaginal wall of women with stress urinary incontinence and pelvic organ prolapse". International Urogynecology Journal and Pelvic Floor Dysfunction 19 (8): 1151–7. Aug 2008. doi:10.1007/s00192-008-0585-z. PMID 18351280. 

Further reading

This article incorporates text from the United States National Library of Medicine, which is in the public domain.