Summary for EPS8 (NES ID: 325)

Full Name
Epidermal Growth Factor (EGF) receptor Pathway Substrate 8     UniProt    
Alternative Names
None
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1Novel Nuclear Partnering Role of ESP8 with FOXM1 in Regulating Cell Proliferation, Ngan et al., Front Oncol, 2019
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
Q271A/L273A/N274A/L277A/D278A/E281A, L277A/D278A/E281A/T285A/Q288A, Q271A/L273A/N274A//T285A/Q288A, Q271A/L273A/N274A/L277A/D278A/E281A/T285A/Q288A Ref.1Novel Nuclear Partnering Role of ESP8 with FOXM1 in Regulating Cell Proliferation, Ngan et al., Front Oncol, 2019
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
265RIDRDVQILNHILDDIEFFITKLQ288 Ref.1Novel Nuclear Partnering Role of ESP8 with FOXM1 in Regulating Cell Proliferation, Ngan et al., Front Oncol, 2019
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 
MNGHISNHPS SFGMYPSQMN GYGSSPTFSQ TDREHGSKTS AKALYEQRKN YARDSVSSVS 

        70         80         90        100        110        120 
DISQYRVEHL TTFVLDRKDA MITVDDGIRK LKLLDAKGKV WTQDMILQVD DRAVSLIDLE 

       130        140        150        160        170        180 
SKNELENFPL NTIQHCQAVM HSCSYDSVLA LVCKEPTQNK PDLHLFQCDE VKANLISEDI 

       190        200        210        220        230        240 
ESAISDSKGG KQKRRPDALR MISNADPSIP PPPRAPAPAP PGTVTQVDVR SRVAAWSAWA 

       250        260        270        280        290        300 
ADQGDFEKPR QYHEQEETPE MMAARIDRDV QILNHILDDI EFFITKLQKA AEAFSELSKR 

       310        320        330        340        350        360 
KKNKKGKRKG PGEGVLTLRA KPPPPDEFLD CFQKFKHGFN LLAKLKSHIQ NPSAADLVHF 

       370        380        390        400        410        420 
LFTPLNMVVQ ATGGPELASS VLSPLLNKDT IDFLNYTVNG DERQLWMSLG GTWMKARAEW 

       430        440        450        460        470        480 
PKEQFIPPYV PRFRNGWEPP MLNFMGATME QDLYQLAESV ANVAEHQRKQ EIKRLSTEHS 

       490        500        510        520        530        540 
SVSEYHPADG YAFSSNIYTR GSHLDQGEAA VAFKPTSNRH IDRNYEPLKT QPKKYAKSKY 

       550        560        570        580        590        600 
DFVARNNSEL SVLKDDILEI LDDRKQWWKV RNASGDSGFV PNNILDIVRP PESGLGRADP 

       610        620        630        640        650        660 
PYTHTIQKQR MEYGPRPADT PPAPSPPPTP APVPVPLPPS TPAPVPVSKV PANITRQNSS 

       670        680        690        700        710        720 
SSDSGGSIVR DSQRHKQLPV DRRKSQMEEV QDELIHRLTI GRSAAQKKFH VPRQNVPVIN 

       730        740        750        760        770        780 
ITYDSTPEDV KTWLQSKGFN PVTVNSLGVL NGAQLFSLNK DELRTVCPEG ARVYSQITVQ 

       790        800        810        820                       
KAALEDSSGS SELQEIMRRR QEKISAAASD SGVESFDEGS SH
3D Structures in PDB
2E8M (NMR)
Comments
EPS8 consists of an N-terminal PTB domain followed by an SH3 domain and a C-terminal effector region. EPS8 regulates Rac-mediated actin remodeling at the cell cortex but also has an NLS and therefore also localizes to the nucleus where it interacts with Forkhead box M1 transcription factor (FOXM1) during G2/M, and is recruited to the CCNB1 and CDC25B promoters. LMB increases nuclear localization of EPS8. The authors used the NES consensus sequence Lx2,3(F/I/L/V/M)x1,2,3Lx(I/V/L and found a partially matching putative NES at amino acids 265RIDRDVQILNHILDDIEFFITKLQ288, which is near a predicted classical-NLS at residues 299 to 309. Both the putative NES and NLS are in a linker that connects the PTB and SH3 domains.
References
[1]. "Novel Nuclear Partnering Role of ESP8 with FOXM1 in Regulating Cell Proliferation"
Ngan AWL, Grace Tsui M, So DHF, Leung WY, Chan DW, Yao KM. (2019) Front Oncol, 9:Article 154 PubMed
User Input
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