PRKAA2

Protein-coding gene in the species Homo sapiens From Wikipedia, the free encyclopedia

5'-AMP-activated protein kinase catalytic subunit alpha-2 is an enzyme that in humans is encoded by the PRKAA2 gene.[5][6]

PDBOrtholog search: PDBe RCSB
AliasesPRKAA2, AMPK, AMPK2, AMPKa2, PRKAA, protein kinase AMP-activated catalytic subunit alpha 2
Quick facts Available structures, PDB ...
PRKAA2
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesPRKAA2, AMPK, AMPK2, AMPKa2, PRKAA, protein kinase AMP-activated catalytic subunit alpha 2
External IDsOMIM: 600497; MGI: 1336173; HomoloGene: 4551; GeneCards: PRKAA2; OMA:PRKAA2 - orthologs
EC number2.7.11.27
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_006252

NM_178143
NM_001356568

RefSeq (protein)

NP_006243

NP_835279
NP_001343497

Location (UCSC)Chr 1: 56.65 – 56.72 MbChr 4: 104.89 – 104.97 Mb
PubMed search[3][4]
Wikidata
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Function

The protein encoded by this gene is a catalytic 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. Studies of the mouse counterpart suggest that this catalytic subunit may control whole-body insulin sensitivity and is necessary for maintaining myocardial energy homeostasis during ischemia.[6]

References

Further reading

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