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UniProtKB - Q9R078 (AAKB1_MOUSE)

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Protein

5'-AMP-activated protein kinase subunit beta-1

Gene

Prkab1

Organism
Mus musculus (Mouse)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Experimental evidence at protein leveli

Functioni

Non-catalytic subunit of AMP-activated protein kinase (AMPK), an energy sensor protein kinase that plays a key role in regulating cellular energy metabolism. In response to reduction of intracellular ATP levels, AMPK activates energy-producing pathways and inhibits energy-consuming processes: inhibits protein, carbohydrate and lipid biosynthesis, as well as cell growth and proliferation. AMPK acts via direct phosphorylation of metabolic enzymes, and by longer-term effects via phosphorylation of transcription regulators. Also acts as a regulator of cellular polarity by remodeling the actin cytoskeleton; probably by indirectly activating myosin. Beta non-catalytic subunit acts as a scaffold on which the AMPK complex assembles, via its C-terminus that bridges alpha (PRKAA1 or PRKAA2) and gamma subunits (PRKAG1, PRKAG2 or PRKAG3) (By similarity).By similarity

GO - Molecular functioni

  • AMP-activated protein kinase activity Source: MGI
  • protein kinase activity Source: MGI
  • protein kinase binding Source: Ensembl
Complete GO annotation...

GO - Biological processi

Complete GO annotation...

Keywordsi

Biological processFatty acid biosynthesis, Fatty acid metabolism, Lipid biosynthesis, Lipid metabolism

Enzyme and pathway databases

ReactomeiR-MMU-1445148. Translocation of GLUT4 to the plasma membrane.
R-MMU-1632852. Macroautophagy.
R-MMU-380972. Energy dependent regulation of mTOR by LKB1-AMPK.
R-MMU-5628897. TP53 Regulates Metabolic Genes.
R-MMU-6804756. Regulation of TP53 Activity through Phosphorylation.

Names & Taxonomyi

Protein namesi
Recommended name:
5'-AMP-activated protein kinase subunit beta-1
Short name:
AMPK subunit beta-1
Short name:
AMPKb
Gene namesi
Name:Prkab1
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Muridae › Murinae › Mus › Mus
Proteomesi
  • UP000000589 Componenti: Chromosome 5

Organism-specific databases

MGIiMGI:1336167. Prkab1.

Subcellular locationi

GO - Cellular componenti

  • cytosol Source: Reactome
  • nucleotide-activated protein kinase complex Source: Ensembl
  • nucleus Source: MGI
Complete GO annotation...

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemovedBy similarity
ChainiPRO_00002043642 – 2705'-AMP-activated protein kinase subunit beta-1Add BLAST269

Amino acid modifications

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Lipidationi2N-myristoyl glycineBy similarity1
Modified residuei4PhosphothreonineBy similarity1
Modified residuei5PhosphoserineBy similarity1
Modified residuei6PhosphoserineBy similarity1
Modified residuei19PhosphothreonineBy similarity1
Modified residuei24Phosphoserine; by autocatalysisBy similarity1
Modified residuei25Phosphoserine; by autocatalysisBy similarity1
Modified residuei40PhosphoserineBy similarity1
Modified residuei96PhosphoserineCombined sources1
Modified residuei101PhosphoserineBy similarity1
Modified residuei108Phosphoserine; by autocatalysisCombined sources1
Modified residuei148PhosphothreonineBy similarity1
Modified residuei170PhosphoserineBy similarity1
Modified residuei182PhosphoserineCombined sources1
Modified residuei201N6-succinyllysineCombined sources1

Post-translational modificationi

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.1 Publication

Keywords - PTMi

Lipoprotein, Myristate, Phosphoprotein

Proteomic databases

EPDiQ9R078.
MaxQBiQ9R078.
PaxDbiQ9R078.
PRIDEiQ9R078.

PTM databases

iPTMnetiQ9R078.
PhosphoSitePlusiQ9R078.

Expressioni

Gene expression databases

BgeeiENSMUSG00000029513.
ExpressionAtlasiQ9R078. baseline and differential.
GenevisibleiQ9R078. MM.

Interactioni

Subunit structurei

AMPK is a heterotrimer of an alpha catalytic subunit (PRKAA1 or PRKAA2), a beta (PRKAB1 or PRKAB2) and a gamma non-catalytic subunits (PRKAG1, PRKAG2 or PRKAG3). Interacts with FNIP1 and FNIP2 (By similarity).By similarity

GO - Molecular functioni

Complete GO annotation...

Protein-protein interaction databases

BioGridi202363. 4 interactors.
IntActiQ9R078. 10 interactors.
MINTiMINT-4086419.
STRINGi10090.ENSMUSP00000031486.

Structurei

3D structure databases

ProteinModelPortaliQ9R078.
SMRiQ9R078.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni68 – 163Glycogen-binding domainBy similarityAdd BLAST96

Domaini

The glycogen-binding domain may target AMPK to glycogen so that other factors like glycogen-bound debranching enzyme or protein phosphatases can directly affect AMPK activity.By similarity

Sequence similaritiesi

Belongs to the 5'-AMP-activated protein kinase beta subunit family.Curated

Phylogenomic databases

eggNOGiKOG1616. Eukaryota.
ENOG410XRB3. LUCA.
GeneTreeiENSGT00390000001416.
HOGENOMiHOG000230597.
HOVERGENiHBG050430.
InParanoidiQ9R078.
KOiK07199.
OMAiKCSDMSE.
OrthoDBiEOG091G0DZR.
PhylomeDBiQ9R078.
TreeFamiTF313827.

Family and domain databases

Gene3Di2.60.40.10. 1 hit.
InterProiView protein in InterPro
IPR032640. AMPK1_CBM.
IPR030080. AMPK_beta-1.
IPR006828. ASC_dom.
IPR013783. Ig-like_fold.
IPR014756. Ig_E-set.
PANTHERiPTHR10343:SF67. PTHR10343:SF67. 1 hit.
PfamiView protein in Pfam
PF16561. AMPK1_CBM. 1 hit.
PF04739. AMPKBI. 1 hit.
SMARTiView protein in SMART
SM01010. AMPKBI. 1 hit.
SUPFAMiSSF81296. SSF81296. 1 hit.

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

Q9R078-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MGNTSSERAA LERQAGHKTP RRDSSGGAKD GDRPKILMDS PEDADIFHSE 
        60         70         80         90        100
EIKAPEKEEF LAWQHDLEAN DKAPAQARPT VFRWTGGGKE VYLSGSFNNW 
       110        120        130        140        150
SKLPLTRSQN NFVAILDLPE GEHQYKFFVD GQWTHDPSEP IVTSQLGTVN 
       160        170        180        190        200
NIIQVKKTDF EVFDALMVDS QKCSDVSELS SSPPGPYHQE PYMSKPEERF 
       210        220        230        240        250
KAPPILPPHL LQVILNKDTG ISCDPALLPE PNHVMLNHLY ALSIKDGVMV 
       260        270
LSATHRYKKK YVTTLLYKPI
Length:270
Mass (Da):30,308
Last modified:January 23, 2007 - v2
Checksum:i6B520A95A0A844E5
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF108215 mRNA. Translation: AAF14222.1.
BC016398 mRNA. Translation: AAH16398.1.
CCDSiCCDS19598.1.
RefSeqiNP_114075.1. NM_031869.2.
XP_006530264.1. XM_006530201.1.
UniGeneiMm.458152.

Genome annotation databases

EnsembliENSMUST00000031486; ENSMUSP00000031486; ENSMUSG00000029513.
ENSMUST00000111999; ENSMUSP00000107630; ENSMUSG00000029513.
GeneIDi19079.
KEGGimmu:19079.
UCSCiuc008zew.1. mouse.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AF108215 mRNA. Translation: AAF14222.1.
BC016398 mRNA. Translation: AAH16398.1.
CCDSiCCDS19598.1.
RefSeqiNP_114075.1. NM_031869.2.
XP_006530264.1. XM_006530201.1.
UniGeneiMm.458152.

3D structure databases

ProteinModelPortaliQ9R078.
SMRiQ9R078.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

BioGridi202363. 4 interactors.
IntActiQ9R078. 10 interactors.
MINTiMINT-4086419.
STRINGi10090.ENSMUSP00000031486.

PTM databases

iPTMnetiQ9R078.
PhosphoSitePlusiQ9R078.

Proteomic databases

EPDiQ9R078.
MaxQBiQ9R078.
PaxDbiQ9R078.
PRIDEiQ9R078.

Protocols and materials databases

DNASUi19079.
Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsembliENSMUST00000031486; ENSMUSP00000031486; ENSMUSG00000029513.
ENSMUST00000111999; ENSMUSP00000107630; ENSMUSG00000029513.
GeneIDi19079.
KEGGimmu:19079.
UCSCiuc008zew.1. mouse.

Organism-specific databases

CTDi5564.
MGIiMGI:1336167. Prkab1.

Phylogenomic databases

eggNOGiKOG1616. Eukaryota.
ENOG410XRB3. LUCA.
GeneTreeiENSGT00390000001416.
HOGENOMiHOG000230597.
HOVERGENiHBG050430.
InParanoidiQ9R078.
KOiK07199.
OMAiKCSDMSE.
OrthoDBiEOG091G0DZR.
PhylomeDBiQ9R078.
TreeFamiTF313827.

Enzyme and pathway databases

ReactomeiR-MMU-1445148. Translocation of GLUT4 to the plasma membrane.
R-MMU-1632852. Macroautophagy.
R-MMU-380972. Energy dependent regulation of mTOR by LKB1-AMPK.
R-MMU-5628897. TP53 Regulates Metabolic Genes.
R-MMU-6804756. Regulation of TP53 Activity through Phosphorylation.

Miscellaneous databases

ChiTaRSiPrkab1. mouse.
PROiPR:Q9R078.
SOURCEiSearch...

Gene expression databases

BgeeiENSMUSG00000029513.
ExpressionAtlasiQ9R078. baseline and differential.
GenevisibleiQ9R078. MM.

Family and domain databases

Gene3Di2.60.40.10. 1 hit.
InterProiView protein in InterPro
IPR032640. AMPK1_CBM.
IPR030080. AMPK_beta-1.
IPR006828. ASC_dom.
IPR013783. Ig-like_fold.
IPR014756. Ig_E-set.
PANTHERiPTHR10343:SF67. PTHR10343:SF67. 1 hit.
PfamiView protein in Pfam
PF16561. AMPK1_CBM. 1 hit.
PF04739. AMPKBI. 1 hit.
SMARTiView protein in SMART
SM01010. AMPKBI. 1 hit.
SUPFAMiSSF81296. SSF81296. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiAAKB1_MOUSE
AccessioniPrimary (citable) accession number: Q9R078
Secondary accession number(s): Q91YN6
Entry historyiIntegrated into UniProtKB/Swiss-Prot: June 1, 2001
Last sequence update: January 23, 2007
Last modified: June 7, 2017
This is version 143 of the entry and version 2 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.