Summary for TFIIIA (NES ID: 15)

Full Name
Transcription factor IIIA (Factor A)     UniProt    
Alternative Names
None
Organism
Bufo americanus (American toad)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.2A 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
L336A Ref.1Amphibian transcription factor IIIA proteins contain a sequence element functionally equivalent to the nuclear export signal of human immunodeficiency virus type 1 Rev, Fridell et al., Proc Natl Acad Sci, 1996
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
321QPDASKADPLPVLENLTLK339 Ref.1Amphibian transcription factor IIIA proteins contain a sequence element functionally equivalent to the nuclear export signal of human immunodeficiency virus type 1 Rev, Fridell et al., Proc Natl Acad Sci, 1996
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 
MGEKLPVVYK RFICSFPDCN ATYNKNRKLQ AHLCKHTGER PFPCTYEGCE KGFVTLHHLN 

        70         80         90        100        110        120 
RHVLSHTGEK PCKCETENCN LAFTTASNMR LHFKRAHSSP AQVYVCYFAD CGQQFRKHNQ 

       130        140        150        160        170        180 
LKIHQYIHTN QQPFKCSHEG CDKCYASPSR LKRHEKTHAG YPCRKDSTCP FVGKTWSDYM 

       190        200        210        220        230        240 
KHAAELHSEV TCSICNRTFK RKSFLKEHKK IHREERIVYR CPRENCDRTY TTKFNLKSHI 

       250        260        270        280        290        300 
LTFHENLRPF VCEHEGCGKT FAMKQSLDRH FNTHDPEKKK MVKPPRPVRS LASRLSGYKP 

       310        320        330                                  
KKSKKKKKPS QTPAMESQEQ QPDASKADPL PVLENLTLK
3D Structures in PDB
Not Available
Comments
TFIIIA is an RNA polymerase III transcription factor that binds to the internal control region of 5S rRNA. TFIIIA also binds 5S rRNA, promoting its export in a manner similar to Rev. AA 321-339 of TFIIIA can functionally replace the activation domain of Rev. It is sufficient to direct the export of fusion GST.
References
[1]. "Amphibian transcription factor IIIA proteins contain a sequence element functionally equivalent to the nuclear export signal of human immunodeficiency virus type 1 Rev"
Fridell, R.A., Fischer, U., Lührmann, R., Meyer, B.E., Meinkoth, J.L., Malim, M.H., Cullen, B.R. (1996) Proc Natl Acad Sci, 93:2936-2940 PubMed
[2]. "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
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