PRKAG1

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Identifiers
Aliases
External IDs	GeneCards: [1]
Orthologs
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a
Wikidata
View/Edit Human

5'-AMP-activated protein kinase subunit gamma-1 is an enzyme that in humans is encoded by the PRKAG1 gene.

Function

The protein encoded by this gene is a regulatory subunit of the AMP-activated protein kinase (AMPK). AMPK is a heterotrimer consisting of an alpha catalytic subunit, and non-catalytic beta and gamma subunits. AMPK is an important energy-sensing enzyme that monitors cellular energy status. In response to cellular metabolic stresses, AMPK is activated, and thus phosphorylates and inactivates acetyl-CoA carboxylase (ACC) and beta-hydroxy beta-methylglutaryl-CoA reductase (HMGCR), key enzymes involved in regulating de novo biosynthesis of fatty acid and cholesterol. This subunit is one of the gamma regulatory subunits of AMPK. Alternatively spliced transcript variants encoding distinct isoforms have been observed.

Interactions

PRKAG1 has been shown to interact with PRKAB2 and PRKAB1.

Further reading

• Hofmann B, Nishanian P, Baldwin RL, Insixiengmay P, Nel A, Fahey JL (December 1990). "HIV inhibits the early steps of lymphocyte activation, including initiation of inositol phospholipid metabolism". Journal of Immunology. 145 (11): 3699–705. PMID 1978848.
• Beebe SJ, Oyen O, Sandberg M, Frøysa A, Hansson V, Jahnsen T (March 1990). "Molecular cloning of a tissue-specific protein kinase (C gamma) from human testis--representing a third isoform for the catalytic subunit of cAMP-dependent protein kinase". Molecular Endocrinology. 4 (3): 465–75. doi:10.1210/mend-4-3-465. PMID 2342480.
• Hofmann B, Nishanian P, Nguyen T, Insixiengmay P, Fahey JL (July 1993). "Human immunodeficiency virus proteins induce the inhibitory cAMP/protein kinase A pathway in normal lymphocytes". Proceedings of the National Academy of Sciences of the United States of America. 90 (14): 6676–80. Bibcode:1993PNAS...90.6676H. doi:10.1073/pnas.90.14.6676. PMC 46995. PMID 7688126.
• Hofmann B, Nishanian P, Fan J, Nguyen T, Fahey JL (July 1994). "HIV Gag p17 protein impairs proliferation of normal lymphocytes in vitro". AIDS. 8 (7): 1016–7. doi:10.1097/00002030-199407000-00025. PMID 7946090.
• Woods A, Cheung PC, Smith FC, Davison MD, Scott J, Beri RK, Carling D (April 1996). "Characterization of AMP-activated protein kinase beta and gamma subunits. Assembly of the heterotrimeric complex in vitro". The Journal of Biological Chemistry. 271 (17): 10282–90. doi:10.1074/jbc.271.48.30517. PMID 8626596.
• Dyck JR, Gao G, Widmer J, Stapleton D, Fernandez CS, Kemp BE, Witters LA (July 1996). "Regulation of 5'-AMP-activated protein kinase activity by the noncatalytic beta and gamma subunits". The Journal of Biological Chemistry. 271 (30): 17798–803. doi:10.1074/jbc.271.30.17798. PMID 8663446.
• Bonaldo MF, Lennon G, Soares MB (September 1996). "Normalization and subtraction: two approaches to facilitate gene discovery". Genome Research. 6 (9): 791–806. doi:10.1101/gr.6.9.791. PMID 8889548.
• Swingler S, Gallay P, Camaur D, Song J, Abo A, Trono D (June 1997). "The Nef protein of human immunodeficiency virus type 1 enhances serine phosphorylation of the viral matrix". Journal of Virology. 71 (6): 4372–7. PMC 191654. PMID 9151826.
• Stapleton D, Woollatt E, Mitchelhill KI, Nicholl JK, Fernandez CS, Michell BJ, Witters LA, Power DA, Sutherland GR, Kemp BE (June 1997). "AMP-activated protein kinase isoenzyme family: subunit structure and chromosomal location". FEBS Letters. 409 (3): 452–6. doi:10.1016/S0014-5793(97)00569-3. PMID 9224708.
• Chen P, Mayne M, Power C, Nath A (September 1997). "The Tat protein of HIV-1 induces tumor necrosis factor-alpha production. Implications for HIV-1-associated neurological diseases". The Journal of Biological Chemistry. 272 (36): 22385–8. doi:10.1074/jbc.272.36.22385. PMID 9278385.
• Reinton N, Haugen TB, Orstavik S, Skålhegg BS, Hansson V, Jahnsen T, Taskén K (April 1998). "The gene encoding the C gamma catalytic subunit of cAMP-dependent protein kinase is a transcribed retroposon". Genomics. 49 (2): 290–7. doi:10.1006/geno.1998.5240. PMID 9598317.
• Zidovetzki R, Wang JL, Chen P, Jeyaseelan R, Hofman F (July 1998). "Human immunodeficiency virus Tat protein induces interleukin 6 mRNA expression in human brain endothelial cells via protein kinase C- and cAMP-dependent protein kinase pathways". AIDS Research and Human Retroviruses. 14 (10): 825–33. doi:10.1089/aid.1998.14.825. PMID 9671211.
• Mayne M, Bratanich AC, Chen P, Rana F, Nath A, Power C (1998). "HIV-1 tat molecular diversity and induction of TNF-alpha: implications for HIV-induced neurological disease". Neuroimmunomodulation. 5 (3–4): 184–92. doi:10.1159/000026336. PMID 9730685.
• Cheung PC, Salt IP, Davies SP, Hardie DG, Carling D (March 2000). "Characterization of AMP-activated protein kinase gamma-subunit isoforms and their role in AMP binding". The Biochemical Journal. 346 Pt 3 (3): 659–69. doi:10.1042/0264-6021:3460659. PMC 1220898. PMID 10698692.
• Hamilton SR, Stapleton D, O'Donnell JB, Kung JT, Dalal SR, Kemp BE, Witters LA (July 2001). "An activating mutation in the gamma1 subunit of the AMP-activated protein kinase". FEBS Letters. 500 (3): 163–8. doi:10.1016/S0014-5793(01)02602-3. PMID 11445078.
• Minokoshi Y, Alquier T, Furukawa N, Kim YB, Lee A, Xue B, Mu J, Foufelle F, Ferré P, Birnbaum MJ, Stuck BJ, Kahn BB (April 2004). "AMP-kinase regulates food intake by responding to hormonal and nutrient signals in the hypothalamus". Nature. 428 (6982): 569–74. Bibcode:2004Natur.428..569M. doi:10.1038/nature02440. PMID 15058305.