Summary for AMPKα2 (NES ID: 156)

Full Name
5'-AMP-activated protein kinase catalytic subunit alpha-2     UniProt    
Alternative Names
AMPK subunit alpha-2   
Organism
Rattus norvegicus (Rat)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1Identification of a Nuclear Export Signal in the Catalytic Subunit of AMP-activated Protein Kinase, Kazgan et al., Mol Biol Cell, 2010
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L546A/L550A Ref.1Identification of a Nuclear Export Signal in the Catalytic Subunit of AMP-activated Protein Kinase, Kazgan et al., Mol Biol Cell, 2010
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
531RLGSHTMDFFEMCASLITALAR552 Ref.1Identification of a Nuclear Export Signal in the Catalytic Subunit of AMP-activated Protein Kinase, Kazgan et al., Mol Biol Cell, 2010
Secondary Structure of Export Signal
Unknown
Other Residues Important for Export
Unknown
Sequence
Show FASTA Format Show Domain Info by CDD Show Secondary Structure by PSIPRED Show Conservation Score by AL2CO 
        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 FYIPEYLNRS 

       250        260        270        280        290        300 
IATLLMHMLQ VDPLKRATIK DIREHEWFKQ DLPSYLFPED PSYDANVIDD EAVKEVCEKF 

       310        320        330        340        350        360 
ECTESEVMNS LYSGDPQDQL AVAYHLIIDN RRIMNQASEF YLASSPPTGS FMDDMAMHIP 

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

       430        440        450        460        470        480 
RAMKQLDFEW KVVNAYHLRV RRKNPVTGNY VKMSLQLYLV DNRSYLLDFK SIDDEVVEQR 

       490        500        510        520        530        540 
SGSSTPQRSC SAAGLHRPRS SVDSSTAENH SLSGSLTGSL TGSTLSSASP RLGSHTMDFF 

       550                                                        
EMCASLITAL AR
3D Structures in PDB
Not Available
Comments
AMP-activated protein kinase (AMPK) phosphorylation targets are found both in the nucleus and cytoplasm and is activated by cellular stressors such as heat shock, low energy levels, and oxidative stress. AMPK restores energetic balance by inhibiting anabolic processes that consume energy and enabling catabolic pathways that produce cellular energy. Nuclear targets of AMPK include PGC1α and PPARα/β/γ that regulate transcription in the nucleus. Consisting of a trimer containing catalytic serine-threonine kinase subunit α and two regulatory subunits β and γ, the NES in the carboxy-terminal of AMPKα provides an additional mechanism for AMPK regulation. While not required for binding with the β and γ subunits, the carboxy terminus in AMPKα is necessary for nuclear export. In vivo experiments have also shown the 22 amino acids to be crucial for Drosophila neuronal maintenance and viability as well as normal localization. Truncated AMPKα also exhibit reduced phosphorylation due to the cytoplasmic localization needed for LKB1, an upstream activator.
References
[1]. "Identification of a Nuclear Export Signal in the Catalytic Subunit of AMP-activated Protein Kinase"
Kazgan N, Williams T, Forsberg LJ, Brenman JE. (2010) Mol Biol Cell, 21:3433-42 PubMed
User Input
Accurate identification of NESs is difficult because many sequences in the genome match the NES consensus. Therefore, some published NESs may be mistakenly identified. Please help us improve the accuracy of NESdb by providing either a positive or negative flag for the NES in this entry. Supporting comments are required to process the flag.

Supporting comments *

Flag this NES *

Positive
Negative

E-mail: