Summary for X11L2 (NES ID: 141)

Full Name
Amyloid beta A4 precursor protein-binding family A member 3     UniProt    
Alternative Names
Neuron-specific X11L2 protein
Neuronal Munc18-1-interacting protein 3 (Mint-3)
Adapter protein X11γ   
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1The X11L/X11beta/MINT2 and X11L2/X11gamma/MINT3 scaffold proteins shuttle between the nucleus and cytoplasm., Sumioka et al., Exp Cell Res, 2008
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L60A/V61A Ref.1The X11L/X11beta/MINT2 and X11L2/X11gamma/MINT3 scaffold proteins shuttle between the nucleus and cytoplasm., Sumioka et al., Exp Cell Res, 2008
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
55SSLQELVQQFEALPGDLVG73 Ref.1The X11L/X11beta/MINT2 and X11L2/X11gamma/MINT3 scaffold proteins shuttle between the nucleus and cytoplasm., Sumioka et al., Exp Cell Res, 2008
Secondary Structure of Export Signal
α-helix-β-turn
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 
MDFPTISRSP SGPPAMDLEG PRDILVPSED LTPDSQWDPM PGGPGSLSRM ELDESSLQEL 

        70         80         90        100        110        120 
VQQFEALPGD LVGPSPGGAP CPLHIATGHG LASQEIADAH GLLSAEAGRD DLLGLLHCEE 

       130        140        150        160        170        180 
CPPSQTGPEE PLEPAPRLLQ PPEDPDEDSD SPEWVEGASA EQEGSRSSSS SPEPWLETVP 

       190        200        210        220        230        240 
LVTPEEPPAG AQSPETLASY PAPQEVPGPC DHEDLLDGVI FGARYLGSTQ LVSERNPPTS 

       250        260        270        280        290        300 
TRMAQAREAM DRVKAPDGET QPMTEVDLFV STKRIKVLTA DSQEAMMDHA LHTISYTADI 

       310        320        330        340        350        360 
GCVLVLMARR RLARRPAPQD HGRRLYKMLC HVFYAEDAQL IAQAIGQAFA AAYSQFLRES 

       370        380        390        400        410        420 
GIDPSQVGVH PSPGACHLHN GDLDHFSNSD NCREVHLEKR RGEGLGVALV ESGWGSLLPT 

       430        440        450        460        470        480 
AVIANLLHGG PAERSGALSI GDRLTAINGT SLVGLPLAAC QAAVRETKSQ TSVTLSIVHC 

       490        500        510        520        530        540 
PPVTTAIIHR PHAREQLGFC VEDGIICSLL RGGIAERGGI RVGHRIIEIN GQSVVATPHA 

       550        560        570                                  
RIIELLTEAY GEVHIKTMPA ATYRLLTGQE QPVYL
3D Structures in PDB
5UWS (X-ray,2.40 Å resolution)
Comments
X11L2 belongs to a family of highly conserved adaptor proteins which provide molecular scaffolds for membrane proteins and membrane-associated proteins. Some scaffolding proteins have been shown to be involved in the nucleus. Sumioka et al. showed that X11L2 can shuttle and can activate transcription. Efficient shuttling is important for the observed transcriptional activity. Crystal structure of NES peptide bound to CRM1 revealed that X11L2 NES is a class 4 NES which uses a beta turn to accommodate the last leucine into the P4 CRM1 hydrophobic pocket.
References
[1]. "The X11L/X11beta/MINT2 and X11L2/X11gamma/MINT3 scaffold proteins shuttle between the nucleus and cytoplasm."
Sumioka A, Saito Y, Sakuma M, Araki Y, Yamamoto T, Suzuki T (2008) Exp Cell Res, 314:1155-62 PubMed
User Input
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