Summary for HIV-REV (NES ID: 2)

Full Name
Protein Rev     UniProt    
Alternative Names
Regulator of expression of viral proteins Anti-repression transactivator ART/TRS   
Organism
Human immunodeficiency virus type 1 (isolate HXB3 group M subtype B) (HIV-1)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.4A comparison of the activity, sequence specificity, and CRM1-dependence of different nuclear export signals, Henderson et al., Exp Cell Res, 2000
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L78A, L81A, L83A, L78D/E79L Ref.3The HIV-1 Rev trans-activator shuttles between the nucleus and the cytoplasm, Meyer et al., Genes Dev, 1994
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
73LQLPPLERLTLD84 Ref.1Nuclear transport of human immunodeficiency virus type 1, visna virus, and equine infectious anemia virus Rev proteins: identification of a family of transferable nuclear export signals, Meyer et al., J. Virol., 1996 Ref.2Identification of a signal for rapid export of proteins from the nucleus, Wen et al., Cell, 1995
Secondary Structure of Export Signal
loop and a single helical-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 
MAGRSGDSDE DLLKAVRLIK FLYQSNPPPN PEGTRQARRN RRRRWRERQR QIHSISERIL 

        70         80         90        100        110            
STYLGRSAEP VPLQLPPLER LTLDCNEDCG TSGTQGVGSP QILVESPTIL ESGAKE
3D Structures in PDB
3NBZ (X-Ray,2.80 Å resolution)
3NC0 (X-Ray,2.90 Å resolution)
Comments
Rev exports the incompletely spliced and unspliced mRNA of HIV-1 to the cytoplasm. It has two distinct and autonomous functional domains: N-terminal RNA binding domain, which binds the Rev response element, and C-terminal activation domain. The NES is located in the activation domain. Wen et al. (1995) and Meyer et al.(1996) found that the NES exports a reporter protein to the cytoplasm after microinjection into the nucleus. Single mutations L78A, L81A, and L83A and double mutation L78D/E79L all abolish nuclear export. Henderson et al. showed that GFP-Rev relocalizes to nucleus with LMB treatment.
References
[1]. "Nuclear transport of human immunodeficiency virus type 1, visna virus, and equine infectious anemia virus Rev proteins: identification of a family of transferable nuclear export signals"
Meyer, B.E., Meinkoth, J.L., Malim, M.H. (1996) J. Virol., 70:2350-2359 PubMed
[2]. "Identification of a signal for rapid export of proteins from the nucleus"
Wen, W., Meinkoth, J.L., Tsien, R.Y., Taylor, S.S. (1995) Cell, 82:463-473 PubMed
[3]. "The HIV-1 Rev trans-activator shuttles between the nucleus and the cytoplasm"
Meyer, B.E., Malim, M.H. (1994) Genes Dev, 8:1538-1547 PubMed
[4]. "A comparison of the activity, sequence specificity, and CRM1-dependence of different nuclear export signals"
Henderson, B.R., Eleftheriou, A. (2000) Exp Cell Res, 256:213-224 PubMed
[5]. "NESbase version 1.0: a database of nuclear export signals."
la Cour T, Gupta R, Rapacki K, Skriver K, Poulsen FM, Brunak S (2003) Nucleic Acids Res, 31:393-6 PubMed
User Input
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