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UniProtKB/Swiss-Prot entry Q8BRK8


[Entry info] [Name and origin] [References] [Comments] [Cross-references] [Keywords] [Features] [Sequence] [Tools]

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Entry information
Entry name AAPK2_MOUSE
Primary accession number Q8BRK8
Secondary accession number Q3UYM4
Integrated into Swiss-Prot on November 28, 2006
Sequence was last modified on November 28, 2006 (Sequence version 2)
Annotations were last modified on    November 25, 2008 (Entry version 48)
Name and origin of the protein
Protein name 5'-AMP-activated protein kinase catalytic subunit alpha-2
Synonyms AMPK alpha-2 chain
EC 2.7.11.1
Gene name
Name: Prkaa2
From
Mus musculus (Mouse) [TaxID: 10090] 
Taxonomy Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Sciurognathi; Muroidea; Muridae; Murinae; Mus.
Protein existence 1: Evidence at protein level;
References
[1]
NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
STRAIN=C57BL/6J;
The mouse genome sequencing consortium;
Submitted (APR-2002) to the EMBL/GenBank/DDBJ databases.
[2]
NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] OF 15-552.
STRAIN=C57BL/6J;
TISSUE=Brain cortex, and Medulla oblongata;
DOI=10.1126/science.1112014; PubMed=16141072 [NCBI, ExPASy, EBI, Israel, Japan]
Carninci P., Kasukawa T., Katayama S., Gough J., Frith M.C., Maeda N., Oyama R., Ravasi T., Lenhard B., Wells C., Kodzius R., Shimokawa K., Bajic V.B., Brenner S.E., Batalov S., Forrest A.R., Zavolan M., Davis M.J., Wilming L.G., Aidinis V., Allen J.E., Ambesi-Impiombato A., Apweiler R., Aturaliya R.N., Bailey T.L., Bansal M., Baxter L., Beisel K.W., Bersano T., Bono H., Chalk A.M., Chiu K.P., Choudhary V., Christoffels A., Clutterbuck D.R., Crowe M.L., Dalla E., Dalrymple B.P., de Bono B., Della Gatta G., di Bernardo D., Down T., Engstrom P., Fagiolini M., Faulkner G., Fletcher C.F., Fukushima T., Furuno M., Futaki S., Gariboldi M., Georgii-Hemming P., Gingeras T.R., Gojobori T., Green R.E., Gustincich S., Harbers M., Hayashi Y., Hensch T.K., Hirokawa N., Hill D., Huminiecki L., Iacono M., Ikeo K., Iwama A., Ishikawa T., Jakt M., Kanapin A., Katoh M., Kawasawa Y., Kelso J., Kitamura H., Kitano H., Kollias G., Krishnan S.P., Kruger A., Kummerfeld S.K., Kurochkin I.V., Lareau L.F., Lazarevic D., Lipovich L., Liu J., Liuni S., McWilliam S., Madan Babu M., Madera M., Marchionni L., Matsuda H., Matsuzawa S., Miki H., Mignone F., Miyake S., Morris K., Mottagui-Tabar S., Mulder N., Nakano N., Nakauchi H., Ng P., Nilsson R., Nishiguchi S., Nishikawa S., Nori F., Ohara O., Okazaki Y., Orlando V., Pang K.C., Pavan W.J., Pavesi G., Pesole G., Petrovsky N., Piazza S., Reed J., Reid J.F., Ring B.Z., Ringwald M., Rost B., Ruan Y., Salzberg S.L., Sandelin A., Schneider C., Schoenbach C., Sekiguchi K., Semple C.A., Seno S., Sessa L., Sheng Y., Shibata Y., Shimada H., Shimada K., Silva D., Sinclair B., Sperling S., Stupka E., Sugiura K., Sultana R., Takenaka Y., Taki K., Tammoja K., Tan S.L., Tang S., Taylor M.S., Tegner J., Teichmann S.A., Ueda H.R., van Nimwegen E., Verardo R., Wei C.L., Yagi K., Yamanishi H., Zabarovsky E., Zhu S., Zimmer A., Hide W., Bult C., Grimmond S.M., Teasdale R.D., Liu E.T., Brusic V., Quackenbush J., Wahlestedt C., Mattick J.S., Hume D.A., Kai C., Sasaki D., Tomaru Y., Fukuda S., Kanamori-Katayama M., Suzuki M., Aoki J., Arakawa T., Iida J., Imamura K., Itoh M., Kato T., Kawaji H., Kawagashira N., Kawashima T., Kojima M., Kondo S., Konno H., Nakano K., Ninomiya N., Nishio T., Okada M., Plessy C., Shibata K., Shiraki T., Suzuki S., Tagami M., Waki K., Watahiki A., Okamura-Oho Y., Suzuki H., Kawai J., Hayashizaki Y.;
"The transcriptional landscape of the mammalian genome.";
Science 309:1559-1563(2005).
[3]
FUNCTION, AND KNOCKOUT.
PubMed=15331533 [NCBI, ExPASy, EBI, Israel, Japan]
Villena J.A., Viollet B., Andreelli F., Kahn A., Vaulont S., Sul H.S.;
"Induced adiposity and adipocyte hypertrophy in mice lacking the AMP-activated protein kinase-alpha2 subunit.";
Diabetes 53:2242-2249(2004).
[4]
PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT SER-173 AND SER-500, AND MASS SPECTROMETRY.
TISSUE=Liver;
DOI=10.1073/pnas.0609836104; PubMed=17242355 [NCBI, ExPASy, EBI, Israel, Japan]
Villen J., Beausoleil S.A., Gerber S.A., Gygi S.P.;
"Large-scale phosphorylation analysis of mouse liver.";
Proc. Natl. Acad. Sci. U.S.A. 104:1488-1493(2007).
Comments
  • FUNCTION: Responsible for the regulation of fatty acid synthesis by phosphorylation of acetyl-CoA carboxylase. It also regulates cholesterol synthesis via phosphorylation and inactivation of hormone-sensitive lipase and hydroxymethylglutaryl-CoA reductase. Appears to act as a metabolic stress-sensing protein kinase switching off biosynthetic pathways when cellular ATP levels are depleted and when 5'-AMP rises in response to fuel limitation and/or hypoxia. This is a catalytic subunit.
  • CATALYTIC ACTIVITY: ATP + a protein = ADP + a phosphoprotein.
  • COFACTOR: Magnesium (By similarity).
  • ENZYME REGULATION: Binding of AMP results in allosteric activation, inducing phosphorylation on Thr-172 by STK11 in complex with STE20-related adapter-alpha (STRAD alpha) pseudo kinase and CAB39. Also activated by phosphorylation by CAMKK2 triggered by a rise in intracellular calcium ions, without detectable changes in the AMP/ATP ratio (By similarity).
  • SUBUNIT: Heterotrimer of a catalytic subunit, a beta and a gamma non-catalytic subunits (By similarity).
  • MISCELLANEOUS: Mice lacking Prkaa2 develop obesity when animals are fed a high-fat diet, as a result of an enhanced lipid accumulation in pre-existing adipocytes but not in other tissues.
  • SIMILARITY: Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. SNF1 subfamily.
  • SIMILARITY: Contains 1 protein kinase domain.
Copyright
Copyrighted by the UniProt Consortium, see http://www.uniprot.org/terms. Distributed under the Creative Commons Attribution-NoDerivs License.
Cross-references
Sequence databases
EMBL
AL627307; -; NOT_ANNOTATED_CDS; Genomic_DNA.[EMBL / GenBank / DDBJ]
AK044030; BAC31746.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
AK134573; BAE22188.1; -; mRNA.[EMBL / GenBank / DDBJ] [CoDingSequence]
RefSeq NP_835279.1; -.
UniGene Mm.48638
3D structure databases
HSSP P49137; 1NXK. [HSSP ENTRY / PDB]
SMR Q8BRK8; 10-278.
ModBase Q8BRK8.
PTM databases
PhosphoSite Q8BRK8; -.
Organism-specific databases
MGI MGI:1336173; Prkaa2.
Gene expression databases
ArrayExpress Q8BRK8; -.
GermOnline ENSMUSG00000028518; Mus musculus.
Ontologies
GO
GO:0005634; Cellular component: nucleus (inferred from direct assay from MGI).
GO:0004679; Molecular function: AMP-activated protein kinase activity (traceable author statement from MGI).
GO:0005524; Molecular function: ATP binding (inferred from electronic annotation from InterPro).
GO:0000287; Molecular function: magnesium ion binding (inferred from electronic annotation from UniProtKB-KW).
GO:0006695; Biological process: cholesterol biosynthetic process (inferred from electronic annotation from UniProtKB-KW).
GO:0006633; Biological process: fatty acid biosynthetic process (inferred from electronic annotation from UniProtKB-KW).
GO:0006468; Biological process: protein amino acid phosphorylation (inferred from electronic annotation from InterPro).
GO:0006950; Biological process: response to stress (traceable author statement from MGI).
QuickGo view.
Family and domain databases
InterPro IPR015741; AMPK.
IPR000719; Prot_kinase_core.
IPR017441; Protein_kinase_ATP_bd_CS.
IPR017442; Se/Thr_pkinase-rel.
IPR008271; Ser_thr_pkin_AS.
IPR002290; Ser_thr_pkinase.
Graphical view of domain structure.
PANTHER PTHR22982:SF61; AMPK; 1.
Pfam PF00069; Pkinase; 1.
Pfam graphical view of domain structure.
ProDom PD000001; Prot_kinase; 1.
[Domain structure / List of seq. sharing at least 1 domain]
SMART SM00220; S_TKc; 1.
SMART graphical view of domain structure.
PROSITE PS00107; PROTEIN_KINASE_ATP; 1.
PS50011; PROTEIN_KINASE_DOM; 1.
PS00108; PROTEIN_KINASE_ST; 1.
PROSITE graphical view of domain structure (profiles).
BLOCKS Q8BRK8.
ProtoNet Q8BRK8.
Genome annotation databases
Ensembl ENSMUSG00000028518; Mus musculus. [Contig view]
GeneID 108079; -.
KEGG mmu:108079; -.
Phylogenomic databases
HOVERGEN Q8BRK8; -.
Other
NextBio 360016; -.
SOURCE Prkaa2; Mus musculus.
UniRef View cluster of proteins with at least 50% / 90% / 100% identity.
Keywords
ATP-binding; Cholesterol biosynthesis; Fatty acid biosynthesis; Kinase; Lipid synthesis; Magnesium; Metal-binding; Nucleotide-binding; Phosphoprotein; Serine/threonine-protein kinase; Steroid biosynthesis; Sterol biosynthesis; Transferase.
Features
SEVIEWER logo Feature table viewer FT aligner logo Feature aligner
KeyFrom   To Length Description FTId
CHAIN   1   552  552     5'-AMP-activated protein kinase catalytic subunit alpha-2. PRO_0000262957
DOMAIN   16   268  253     Protein kinase. 
NP_BIND   22    30  9     ATP (By similarity). 
ACT_SITE   139   139        Proton acceptor (By similarity). 
BINDING   45    45        ATP (By similarity). 
MOD_RES   172   172        Phosphothreonine; by STK11 (By similarity). 
MOD_RES   173   173        Phosphoserine. 
MOD_RES   176   176        Phosphoserine (By similarity). 
MOD_RES   377   377        Phosphoserine (By similarity). 
MOD_RES   500   500        Phosphoserine. 
CONFLICT   15    15        H -> D (in Ref. 2; BAE22188). 
CONFLICT   289   289        V -> D (in Ref. 2; BAE22188). 
CONFLICT   380   380        A -> E (in Ref. 2; BAE22188). 
CONFLICT   502   502        F -> Y (in Ref. 2; BAE22188). 
CONFLICT   506   506        T -> K (in Ref. 2; BAE22188). 
Sequence information
Length: 552 AA [This is the length of the unprocessed precursor] Molecular weight: 62006 Da [This is the MW of the unprocessed precursor] CRC64: 593911EAB3BBFE3F [This is a checksum on the sequence]
        10         20         30         40         50         60 
MAEKQKHDGR VKIGHYVLGD TLGVGTFGKV KIGEHQLTGH KVAVKILNRQ KIRSLDVVGK 

        70         80         90        100        110        120 
IKREIQNLKL FRHPHIIKLY QVISTPTDFF MVMEYVSGGE LFDYICKHGR VEEVEARRLF 

       130        140        150        160        170        180 
QQILSAVDYC HRHMVVHRDL KPENVLLDAQ MNAKIADFGL SNMMSDGEFL RTSCGSPNYA 

       190        200        210        220        230        240 
APEVISGRLY AGPEVDIWSC GVILYALLCG TLPFDDEHVP TLFKKIRGGV FYIPDYLNRS 

       250        260        270        280        290        300 
VATLLMHMLQ VDPLKRATIK DIREHEWFKQ DLPSYLFPED PSYDANVIVD EAVKEVCEKF 

       310        320        330        340        350        360 
ECTESEVMNS LYSGDPQDQL AVAYHLIIDN RRIMNQASEF YLASSPPSGS FMDDSAMHIP 

       370        380        390        400        410        420 
PGLKPHPERM PPLIADSPKA RCPLDALNTT KPKSLAVKKA KWHLGIRSQS KACDIMAEVY 

       430        440        450        460        470        480 
RAMKQLGFEW KVVNAYHLRV RRKNPVTGNY VKMSLQLYLV DSRSYLLDFK SIDDEVVEQR 

       490        500        510        520        530        540 
SGSSTPQRSC SAAGLHRARS SFDSSTAENH SLSGSLTGSL TGSTLSSASP RLGSHTMDFF 

       550 
EMCASLITAL AR 

Q8BRK8 in FASTA format

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