Search by BoMiProt ID - Bomi3534

Primary Information

BoMiProt ID Bomi3534
Protein Name 5'-AMP-activated protein kinase subunit beta-1
Organism Bos taurus
Uniprot IdQ5BIS9
Milk FractionExosomes
Ref Sequence Id NP_001019729.1
Aminoacid Length 270
Molecular Weight 30287
Fasta Sequence
Gene Name PRKAB1
Gene Id 534107
Protein Existence Status Reviewed

Secondary Information

Presence in other biological fluids/tissue/cells prostate gland
Protein Function Non-catalytic subunit of AMP-activated protein kinase (AMPK), an energy sensor protein kinase that plays a key role in regulating cellular energy metabolism.It is an essential enzyme for regulating energy homeostasis . It is able to activate fatty acid β-oxidation, glycolysis and glucose transport while inhibiting lipid synthesis.
Biochemical Properties AMPK is a heterotrimer that consists of a catalytic α and regulatory β− and γ-subunits. Each subunit exists in different isoforms, with two α (α1 and α2), two β (β1 and β2), and three γ (γ1, γ2, γ3) isoforms differentially expressed in various tissues in up to 12 different isoenzymes. The kinase activity of AMPK is regulated by phosphorylation of the conserved threonine in the catalytic domain of the α-subunit by adenine nucleotide binding to the γ-subunit and by glycogen binding to a conserved mid-molecule carbohydrate-binding module (CBM) located in the β-subunits.
PTMs Lipoylation, Myristoylation, Phosphorylation at Ser
Site(s) of PTM(s)

N-glycosylation, O-glycosylation,
Predicted Disorder Regions 1-79, 172-202
DisProt Annotation
TM Helix Prediction No TM helices
Significance of PTMs Phosphorylated when associated with the catalytic subunit (PRKAA1 or PRKAA2). Phosphorylated by ULK1; leading to negatively regulate AMPK activity and suggesting the existence of a regulatory feedback loop between ULK1 and AMPK
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