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Protein PRKAG1 PDB 2uv4.png
Available structures
PDBOrtholog search: PDBe RCSB
AliasesPRKAG1, AMPKG, protein kinase AMP-activated non-catalytic subunit gamma 1
External IDsOMIM: 602742 MGI: 108411 HomoloGene: 99712 GeneCards: PRKAG1
Gene location (Human)
Chromosome 12 (human)
Chr.Chromosome 12 (human)[1]
Chromosome 12 (human)
Genomic location for PRKAG1
Genomic location for PRKAG1
Band12q13.12Start49,002,274 bp[1]
End49,018,807 bp[1]
RNA expression pattern
PBB GE PRKAG1 201805 at fs.png
More reference expression data
RefSeq (mRNA)



RefSeq (protein)



Location (UCSC)Chr 12: 49 – 49.02 MbChr 15: 98.81 – 98.83 Mb
PubMed search[3][4]
View/Edit HumanView/Edit Mouse

5'-AMP-activated protein kinase subunit gamma-1 is an enzyme that in humans is encoded by the PRKAG1 gene.[5][6][7]


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.[7]


PRKAG1 has been shown to interact with PRKAB2[8] and PRKAB1.[8]


  1. ^ a b c GRCh38: Ensembl release 89: ENSG00000181929 - Ensembl, May 2017
  2. ^ a b c GRCm38: Ensembl release 89: ENSMUSG00000067713 - Ensembl, May 2017
  3. ^ "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. ^ "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. ^ Stapleton D, Mitchelhill KI, Gao G, Widmer J, Michell BJ, Teh T, House CM, Fernandez CS, Cox T, Witters LA, Kemp BE (January 1996). "Mammalian AMP-activated protein kinase subfamily". The Journal of Biological Chemistry. 271 (2): 611–4. doi:10.1074/jbc.271.2.611. PMID 8557660.
  6. ^ Gao G, Fernandez CS, Stapleton D, Auster AS, Widmer J, Dyck JR, Kemp BE, Witters LA (April 1996). "Non-catalytic beta- and gamma-subunit isoforms of the 5'-AMP-activated protein kinase". The Journal of Biological Chemistry. 271 (15): 8675–81. doi:10.1074/jbc.271.15.8675. PMID 8621499.
  7. ^ a b "Entrez Gene: PRKAG1 protein kinase, AMP-activated, gamma 1 non-catalytic subunit".
  8. ^ a b 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.

Further reading[edit]

External links[edit]

  • PDBe-KB provides an overview of all the structure information available in the PDB for Human 5'-AMP-activated protein kinase subunit gamma-1 (PRKAG1)