Summary for p38 (p40) (NES ID: 56)

Full Name
Nucleoprotein (N protein)     UniProt    
Alternative Names
Nucleocapsid protein    
Organism
Borna disease virus (BDV)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1Borna disease virus nucleoprotein requires both nuclear localization and export activities for viral nucleocytoplasmic shuttling, Kobayashi et al., J. Virol., 2001
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L128A/L131A/I133A/I136A Ref.1Borna disease virus nucleoprotein requires both nuclear localization and export activities for viral nucleocytoplasmic shuttling, Kobayashi et al., J. Virol., 2001
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
128LTELEISSIFSHCCSLLI145 Ref.1Borna disease virus nucleoprotein requires both nuclear localization and export activities for viral nucleocytoplasmic shuttling, Kobayashi et al., J. Virol., 2001
Secondary Structure of Export Signal
α-helix
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 
MPPKRRLVDD ADAMEDQDLY EPPASLPKLP GKFLQYTVGG SDPHPGIGHE KDIRQNAVAL 

        70         80         90        100        110        120 
LDQSRRDMFH TVTPSLVFLC LLIPGLHAAF VHGGVPRESY LSTPVTRGEQ TVVKTAKFYG 

       130        140        150        160        170        180 
EKTTQRDLTE LEISSIFSHC CSLLIGVVIG SSSKIKAGAE QIKKRFKTMM AALNRPSHGE 

       190        200        210        220        230        240 
TATLLQMFNP HEAIDWINGQ PWVGSFVLSL LTTDFESPGK EFMDQIKLVA SYAQMTTYTT 

       250        260        270        280        290        300 
IKEYLAECMD ATLTIPVVAY EIRDFLEVSA KLKEEHADLF PFLGAIRHPD AIKLAPRSFP 

       310        320        330        340        350        360 
NLASAAFYWS KKENPTMAGY RASTIQPGAS VKETQLARYR RREISRGEDG AELSGEISAI 

       370                                                        
MRMIGVTGLN
3D Structures in PDB
1N93 (X-Ray,1.76 Å resolution)
1PP1 (X-Ray,1.90 Å resolution)
Comments
It has been reported that the BDV (Borna disease virus) nucleoprotein (N) and phophoprotein (P) have nuclear localization activity, which is critical for nuclear targeting of the BDV RNP complexes. Kobayashi et al. demonstrated here that the BDV N protein has an NES. When fused to GFP, aa 128-145 is completely cytoplasmic. Mutation of L128/L131/I133/I136 to alanines will make the fusion protein diffuse throughout the cell. Treatment with LMB also abolish the export. The BDV P protein prevents the export activity of N protein due to the fact that the interaction site (aa 131-158) covers the NES. They also showed that BDV N protein can shuttle between nucleus and cytoplasm.
References
[1]. "Borna disease virus nucleoprotein requires both nuclear localization and export activities for viral nucleocytoplasmic shuttling"
Kobayashi, T., Kamitani, W., Zhang, G., Watanabe, M., Tomonaga, K., Ikuta, K. (2001) J. Virol., 75:3404-3412 PubMed
User Input
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