1: PRKAA1 protein kinase, AMP-activated, alpha 1 catalytic subunit [ Homo sapiens ]

GeneID: 5562 updated 25-Nov-2009

[Top][Help]Summary

Official Symbol
PRKAA1provided by HGNC
Official Full Name
protein kinase, AMP-activated, alpha 1 catalytic subunitprovided by HGNC
Primary Source
HGNC:9376
See related
Ensembl:ENSG00000132356; HPRD:04115; MIM:602739
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
AMPK; AMPKa1; MGC33776; MGC57364; PRKAA1
Summary
The protein encoded by this gene belongs to the ser/thr protein kinase family. It is the catalytic subunit of the 5'-prime-AMP-activated protein kinase (AMPK). AMPK is a cellular energy sensor conserved in all eukaryotic cells. The kinase activity of AMPK is activated by the stimuli that increase the cellular AMP/ATP ratio. AMPK regulates the activities of a number of key metabolic enzymes through phosphorylation. It protects cells from stresses that cause ATP depletion by switching off ATP-consuming biosynthetic pathways. Alternatively spliced transcript variants encoding distinct isoforms have been observed. [provided by RefSeq]

[Top][Help]Genomic regions, transcripts, and products

(minus strand) Go to reference sequence detailsTry our new Sequence Viewer


[Top][Help]Genomic context

chromosome: 5; Location: 5p12See PRKAA1 in MapViewer

[Top][Help]Bibliography

Related Articles in PubMed

GeneRIFs: Gene References Into Function What's a GeneRIF?

PubMed 1. the active form of the alpha-catalytic AMPK subunit (P-AMPKalphaThr172)transiently associates with several mitotic structures including centrosomes, spindle poles, the central spindle midzone and the midbody throughout all of the mitotic stages and cyt...
PubMed 2. Data show that kidney bean husk extract exhibited antitumor effects accompanied by the increase in p-AMPK and p-Acc as well as antitumor proteins p53 and p21.
PubMed 3. Findings suggest that both COX-2 stimulators (TPA and H(2)O(2)) might have differential effects on COX-2 and AMPK regulation and further apoptotic regulation.
PubMed 4. Results indicate that the liberation of excessive ROS might be the upstream signal of the AMPK-COX-2 signaling pathway
PubMed 5. Results indicate that AMPK is crucial in apoptosis induced by curcumin and further that the pAkt-AMPK-COX-2 cascade or AMPK-pAkt-COX-2 pathway is important in cell proliferation and apoptosis in colon cancer cells.
PubMed 6. AMPK inhibits myoblast differentiation through a PGC-1alpha-dependent mechanism.
PubMed 7. AMP-activated protein kinase inhibits alkaline pH- and PKA-induced apical vacuolar H+-ATPase accumulation in epididymal clear cells.
PubMed 8. TRAIL-induced AMPK activation depends on transforming growth factor-beta-activating kinase 1 (TAK1) and TAK1-binding subunit 2.
PubMed 9. Observational study of gene-disease association, gene-environment interaction, and pharmacogenomic / toxicogenomic. (HuGE Navigator)
PubMed 10. Adiponectin-induced growth inhibition is significantly attenuated when AMPK level is reduced using small interfering RNA, indicating that AMPK is involved in mediating the antiproliferative action of this adipokine.
PubMed 11. although the molecular mechanism underlying AMPK activation via the forskolin stimulation is unclear, the tight junction formation induced by forskolin is likely to be mediated by the AMPK pathway in trophoblasts
PubMed 12. AMPK activation partially contributes to the cytotoxic effect of curcumin in ovarian cancer cells
PubMed 13. AMP-activated protein kinase alpha-1 subunit is a potent counterregulator of inflammatory signaling pathways in macrophages.
PubMed 14. D-xylose derivatives stimulate muscle glucose uptake by activating AMP-activated protein kinase alpha
PubMed 15. AMPK alpha2 activity, AMPK alpha2 Thr172 phosphorylation, and ACC-beta Ser222 phosphorylation were increased immediately after exercise. These increases had all returned to basal levels at 3 and 24 h after exercise.
PubMed 16. Results demonstrate that AMPK-alpha1 and AMPK-alpha2 activity and fuel selection in skeletal muscle in response to exercise can be manipulated by diet and/or the interactive effects of diet and exercise training.
PubMed 17. rosiglitazone is able to acutely stimulate NO synthesis in cultured endothelial cells by an AMP-activated protein kinase-dependent mechanism, likely to be mediated by LKB1
PubMed 18. alpha2 But not alpha1 AMP-activated protein kinase mediates oxidative stress-induced inhibition of retinal pigment epithelium cell phagocytosis of photoreceptor outer segments
PubMed 19. Ultrasound increased COX-2 expression in osteoblasts via the LKB1/AMPKalpha1/p38/IKKalphabeta and NF-kappaB signaling pathway.
PubMed 20. The dynamic of AMPK activity was consistent with a prosurvival role during chronic hypoxia.
PubMed 21. repeated, high-intensity exercise that leads to clinically relevant immunosuppression may do so via AMPK inactivation within immune cells
PubMed 22. Trained human skeletal muscle has increased alpha(1)-AMPK protein levels and blunted AMPK activation during exercise.
PubMed 23. IGF-1 induces AMPK-alpha subunit phosphorylation via an ATM-dependent and LKB1-independent pathway
PubMed 24. interaction between Leu-328 and Val-298 plays an important role in AMPK alpha autoinhibitory function
PubMed 25. AMPK activation is linked with reductions in cAMP-mediated epithelial chloride flux and may be a contributing factor to the hyporesponsiveness seen under conditions of chronic inflammation.
PubMed 26. These are the first data to show an effect of AMPK on cell movement, and suggest a fundamental role for energy deficiency in regulating cellular behaviour.
PubMed 27. The data provide novel insight into the subunit composition of the epithelial CFTR/AMPK/NDPK complex, such that: CFTR interacts specifically with AMPK alpha1, gamma2 and NDPK-A and not NDPK-B or AMPK gamma1.
PubMed 28. Role of AMPK in tolerance to glucose starvation in cell lines

[Top][Help]Interactions

Description ..........
  Product Interactant Other Gene Complex Source Pubs          
 
  AMPK alpha 1   NP_057373.1   CAB39      HPRD    PubMed
 
  NP_006242.1   CFTR   CFTR      HPRD    PubMed
 
  NP_006242.1   NP_006800.2   TOMM34      HPRD    PubMed
 
  NP_006242.1   AMPK-beta        HPRD    PubMed
 
  NP_006242.1   AMPK-gamma        HPRD    PubMed
 
  NP_006242.1   AMPKK        HPRD    PubMed
Reconstituted Complex
  BioGRID:111549   BioGRID:107506   CFTR      BioGRID    PubMed
Affinity Capture-Western; Biochemical Activity; Reconstituted Complex
  BioGRID:111549   BioGRID:125175   FNIP1      BioGRID    PubMed
Protein-peptide
  BioGRID:111549   BioGRID:108757   MTOR      BioGRID    PubMed
Two-hybrid
  BioGRID:111549   BioGRID:111558   PRKAG1      BioGRID    PubMed
Affinity Capture-Western; Reconstituted Complex
  BioGRID:111549   BioGRID:113100   TSC2      BioGRID    PubMed

[Top][Help]General gene information

Markers

STS-N23112(e-PCR)
Links: UniSTS:79672
SGC34175(e-PCR)
Links: UniSTS:65376
RH18516(e-PCR)
Links: UniSTS:65377
RH71041(e-PCR)
Links: UniSTS:69251
NM_006251(e-PCR)
Links: UniSTS:497561

Homology

Homologs of the PRKAA1 gene The PRKAA1 gene is conserved in dog, cow, mouse, rat, chicken, zebrafish, A.thaliana, and rice.


Map Viewer (Mouse, Rat)

Pathways

KEGG pathway: Adipocytokine signaling pathway
04920
KEGG pathway: Hypertrophic cardiomyopathy (HCM)
05410
KEGG pathway: Insulin signaling pathway
04910
KEGG pathway: Regulation of autophagy
04140
KEGG pathway: mTOR signaling pathway
04150
Reactome Event:Integration of energy metabolism
REACT_1505

[Top][Help]General protein information

Preferred Names
protein kinase, AMP-activated, alpha 1 catalytic subunit
Names
protein kinase, AMP-activated, alpha 1 catalytic subunit
AMPK alpha 1
AMP -activate kinase alpha 1 subunit
AMP-activated protein kinase, catalytic, alpha-1
5'-AMP-activated protein kinase, catalytic alpha-1 chain
NP_006242.5
EC 2.7.11.1
NP_996790.3
EC 2.7.11.1

[Top][Help]NCBI Reference Sequences (RefSeq)

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

mRNA and Protein(s)

  1. NM_006251.5NP_006242.5  protein kinase, AMP-activated, alpha 1 catalytic subunit isoform 1

    Description
    Transcript Variant: This variant (1) appears to represent the more predominantly expressed transcript. It lacks an in-frame coding exon compared to variant 2. The resulting isoform (1) lacks an internal segment, as compared to isoform 2.
    Source sequence(s)
    AC008810,BC048980,DB236105
    Consensus CDS
    CCDS3932.2
    UniProtKB/Swiss-Prot
    Q13131
    Conserved Domains (2) summary
    cd00180
    Location:26279
    Blast Score: 691
    S_TKc; Serine/Threonine protein kinases, catalytic domain. Phosphotransferases of the serine or threonine-specific kinase subfamily. The enzymatic activity of these protein kinases is controlled by phosphorylation of specific residues in the activation...
    smart00220
    Location:46279
    Blast Score: 749
    S_TKc; Serine/Threonine protein kinases, catalytic domain
  2. NM_206907.3NP_996790.3  protein kinase, AMP-activated, alpha 1 catalytic subunit isoform 2

    Description
    Transcript Variant: This variant (2) represents the longer transcript and encodes the longer isoform (2).
    Source sequence(s)
    AC008810,BC048980,DB236105
    Consensus CDS
    CCDS3933.2
    UniProtKB/Swiss-Prot
    Q13131
    Conserved Domains (2) summary
    cd00180
    Location:26294
    Blast Score: 667
    S_TKc; Serine/Threonine protein kinases, catalytic domain. Phosphotransferases of the serine or threonine-specific kinase subfamily. The enzymatic activity of these protein kinases is controlled by phosphorylation of specific residues in the activation...
    smart00220
    Location:46294
    Blast Score: 726
    S_TKc; Serine/Threonine protein kinases, catalytic domain

RefSeqs of Annotated Genomes: Build 37.1

The following sections contain reference sequences that belong to a specific genome build. Explain

Genome Reference Consortium Human Build 37 (GRCh37), Primary_Assembly

Genomic

  1. NC_000005.9

    Range
    40759480..40798296, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)
  2. NT_006576.16 

    Range
    40749480..40788296, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)

Alternate assembly (Celera)

Genomic

  1. AC_000048.1

    Range
    40648065..40686888, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)
  2. NW_922596.1 

    Range
    6358579..6397402, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)

Alternate assembly (HuRef)

Genomic

  1. AC_000137.1

    Range
    40711303..40750183, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)
  2. NW_001838933.1 

    Range
    5053914..5092794, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)

[Top][Help]Related Sequences

  Nucleotide   Protein
  genomic   AC008810.8  (45579..84387)   None
  genomic   CH471119.1   EAW56000.1
       EAW56001.1
  mRNA   AB022017.1   BAA36547.1
  mRNA   AF100763.1   AAD43027.1
  mRNA   AK024252.1   None
  mRNA   AK307546.1   None
  mRNA   AK312947.1   BAG35788.1
  mRNA   BC012622.1   AAH12622.1
  mRNA   BC037303.2   AAH37303.1
  mRNA   BC048980.1   AAH48980.1
  mRNA   BQ049192.1   None
  mRNA   BQ716041.1   None
  mRNA   BX494823.1   None
  mRNA   CD512588.1   None
  mRNA   CR616720.1   None
  mRNA   DB236105.1   None
  mRNA   U22456.1   AAA64850.1
  mRNA   Y12856.1   CAA73361.1
Protein Accession   Links
Q13131.4   GenPept   UniProtKB/Swiss-Prot:Q13131
Q96E92   GenPept   UniProtKB/TrEMBL:Q96E92

[Top][Help]Additional Links