Summary for CHIKV C (NES ID: 310)

Full Name
Capsid Protein     UniProt    
Alternative Names
Coat Protein   
Organism
Chikungunya virus (CHIKV)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1Mutation of a Conserved Nuclear Export Sequence in Chikungunya Virus Capsid Protein Disrupts Host Cell Nuclear Import, Jacobs et al., Viruses, 2017
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L51A/M53A Ref.1Mutation of a Conserved Nuclear Export Sequence in Chikungunya Virus Capsid Protein Disrupts Host Cell Nuclear Import, Jacobs et al., Viruses, 2017
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
Undetermined
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 
MEFIPTQTFY NRRYQPRPWT PRPTIQVIRP RPRPQRKAGQ LAQLISAVNK LTMRAVPQQK 

        70         80         90        100        110        120 
PRKNRKNKKQ KQKQQAPRNN MNQKKQPPKK KPAQKKKKPG RRERMCMKIE NDCIFEVKHE 

       130        140        150        160        170        180 
GKVTGYACLV GDKVMKPAHV KGTIDNADLA KLAFKRSSKY DLECAQIPVH MKSDASKFTH 

       190        200        210        220        230        240 
EKPEGYYNWH HGAVQYSGGR FTIPTGAGKP GDSGRPIFDN KGRVVAIVLG GANEGARTAL 

       250        260                                             
SVVTWNKDIV TKITPEGAEE W
3D Structures in PDB
Not Available
Comments
Jacobs et al. identified a putative NES in Chikungunya virus capsid protein (residues 44-53) by homology to the VEEV capsid protein (entry#144). Both LMB treatment and NES mutation caused nuclear accumulation of over-expressed GFP-fusion full length Capsid protein or by infection. Interestingly, wild type CHIKV capsid protein does not block nuclear import of a fluorescent reporter like the WT VEEV capsid protein; while the NES mutant does, in contrast to VEEV NES mutant that doesn't.
References
[1]. "Mutation of a Conserved Nuclear Export Sequence in Chikungunya Virus Capsid Protein Disrupts Host Cell Nuclear Import"
Jacobs SC, Taylor A, Herrero LJ, Mahalingam S, Fazakerley JK. (2017) Viruses, 9(10):306 PubMed
User Input
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