Summary for eIF2S2 (NES ID: 383)

Full Name
Eukaryotic translation initiation factor 2 subunit 2     UniProt    
Alternative Names
Eukaryotic translation initiation factor 2 subunit beta   
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
Reporter activity when co-expressed with CRM1 Ref.2Using a Simple Cellular Assay to Map NES Motifs in Cancer-Related Proteins, Gain Insight into CRM1-Mediated NES Export, and Search for NES-Harboring Micropeptides, Sendino et al., Int J Mol Sci, 2020
Mutations That Affect Nuclear Export
Unknown
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
89FDIDEAEEGVKDLKIESDV107 Ref.2Using a Simple Cellular Assay to Map NES Motifs in Cancer-Related Proteins, Gain Insight into CRM1-Mediated NES Export, and Search for NES-Harboring Micropeptides, Sendino et al., Int J Mol Sci, 2020
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 
MSGDEMIFDP TMSKKKKKKK KPFMLDEEGD TQTEETQPSE TKEVEPEPTE DKDLEADEED 

        70         80         90        100        110        120 
TRKKDASDDL DDLNFFNQKK KKKKTKKIFD IDEAEEGVKD LKIESDVQEP TEPEDDLDIM 

       130        140        150        160        170        180 
LGNKKKKKKN VKFPDEDEIL EKDEALEDED NKKDDGISFS NQTGPAWAGS ERDYTYEELL 

       190        200        210        220        230        240 
NRVFNIMREK NPDMVAGEKR KFVMKPPQVV RVGTKKTSFV NFTDICKLLH RQPKHLLAFL 

       250        260        270        280        290        300 
LAELGTSGSI DGNNQLVIKG RFQQKQIENV LRRYIKEYVT CHTCRSPDTI LQKDTRLYFL 

       310        320        330                                  
QCETCHSRCS VASIKTGFQA VTGKRAQLRA KAN
3D Structures in PDB
6K71 (CryoEM,4.3 Å resolution)
Comments
EIF2S2 is part of the eIF2 complex which binds to the 40S ribosomal subunit. This NES was identified by in silico prediction methods in Sendino et al. using possible XPO1/CRM1-cancer exportome proteins identified previously as putative CRM1-binders by Kirli et al. (not all proteins were validated in full-length). This putative NES peptide was tested using Rev(1.4)-GFP and SRVB/A reporters based on replacing survivin NES and with other peptide sequences. CRM1-dependency is illustrated by cytoplasmic accumulation of the reporter when co-expressed with CRM1. However, the export activity of this isolated NES is weak. Ref.1A deep proteomics perspective on CRM1-mediated nuclear export and nucleocytoplasmic partitioning, Kirli et al., eLife, 2015 Ref.2Using a Simple Cellular Assay to Map NES Motifs in Cancer-Related Proteins, Gain Insight into CRM1-Mediated NES Export, and Search for NES-Harboring Micropeptides, Sendino et al., Int J Mol Sci, 2020
References
[1]. "A deep proteomics perspective on CRM1-mediated nuclear export and nucleocytoplasmic partitioning"
Kırlı K, Karaca S, Dehne HJ, Samwer M, Pan KT, Lenz C, Urlaub H, Görlich D. (2015) eLife, 4:e11466 PubMed
[2]. "Using a Simple Cellular Assay to Map NES Motifs in Cancer-Related Proteins, Gain Insight into CRM1-Mediated NES Export, and Search for NES-Harboring Micropeptides"
Sendino M, Omaetxebarria MJ, Prieto G, Rodriguez JA. (2020) Int J Mol Sci, 21(17):E6341 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: