Kir6.2
Kir6.2 is a major subunit of the ATP-sensitive K+ channel, an inward-rectifier potassium ion channel.[5] The gene encoding the channel is called KCNJ11 and mutations in this gene are associated with congenital hyperinsulinism.[6]
Structure
It is an integral membrane protein. The protein, which has a greater tendency to allow potassium to flow into a cell rather than out of a cell, is controlled by G-proteins and is found associated with the sulfonylurea receptor (SUR) to constitute the ATP-sensitive K+ channel.
Pathology
Mutations in this gene are a cause of familial persistent hyperinsulinemic hypoglycemia of infancy (PHHI), an autosomal recessive disorder characterized by unregulated insulin secretion. Defects in this gene may also contribute to autosomal dominant non-insulin-dependent diabetes mellitus type II (NIDDM).[5][7]
See also
References
- ^ a b c GRCh38: Ensembl release 89: ENSG00000187486 – Ensembl, May 2017
- ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000096146 – Ensembl, May 2017
- ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
- ^ a b "Entrez Gene: KCNJ11 potassium inwardly-rectifying channel, subfamily J, member 11".
- ^ Smith AJ, Taneja TK, Mankouri J, Sivaprasadarao A (2007). "Molecular cell biology of KATP channels: implications for neonatal diabetes". Expert Rev Mol Med. 9 (21): 1–17. doi:10.1017/S1462399407000403. PMID 17666135.
- ^ Koo BK, Cho YM, Park BL, Cheong HS, Shin HD, Jang HC, Kim SY, Lee HK, Park KS (2007). "Polymorphisms of KCNJ11 (Kir6.2 gene) are associated with Type 2 diabetes and hypertension in the Korean population". Diabet. Med. 24 (2): 178–86. doi:10.1111/j.1464-5491.2006.02050.x. PMID 17257281.
Further reading
External links
- GeneReviews/NCBI/NIH/UW entry on Familial Hyperinsulinism
- GeneReviews/NCBI/NIH/UW entry on Permanent Neonatal Diabetes Mellitus
- KCNJ11+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
- SUR1+protein,+human at the U.S. National Library of Medicine Medical Subject Headings (MeSH)
This article incorporates text from the United States National Library of Medicine, which is in the public domain.