Summary for Yap1p (NES ID: 45)

Full Name
AP-1-like transcription factor YAP1     UniProt    
Alternative Names
Phenanthroline resistance protein PAR1
Pleiotropic drug resistance protein PDR4   
Organism
Saccharomyces cerevisiae (Baker's yeast)    
Experimental Evidence for CRM1-mediated Export
Binds CRM1 Ref.1Crm1p mediates regulated nuclear export of a yeast AP-1-like transcription factor, Yan et al., EMBO J, 1998
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L619A, V616A, C620T Ref.1Crm1p mediates regulated nuclear export of a yeast AP-1-like transcription factor, Yan et al., EMBO J, 1998 Ref.2Regulation of yAP-1 nuclear localization in response to oxidative stress, Kuge et al., EMBO J, 1997
Mutations That Affect CRM1 Binding
*shown as red residues in the full sequence
L619A, C620T, C629A
Functional Export Signals
*shown as underlined residues in the full sequence
585NDVVPSKEGSLLRCSEIWDRITTHPKYSDIDVDGLCSELMAKAKCSERGVVINAEDVQLA
LNKHMN650 Ref.2Regulation of yAP-1 nuclear localization in response to oxidative stress, Kuge et al., EMBO J, 1997
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 
MSVSTAKRSL DVVSPGSLAE FEGSKSRHDE IENEHRRTGT RDGEDSEQPK KKGSKTSKKQ 

        70         80         90        100        110        120 
DLDPETKQKR TAQNRAAQRA FRERKERKMK ELEKKVQSLE SIQQQNEVEA TFLRDQLITL 

       130        140        150        160        170        180 
VNELKKYRPE TRNDSKVLEY LARRDPNLHF SKNNVNHSNS EPIDTPNDDI QENVKQKMNF 

       190        200        210        220        230        240 
TFQYPLDNDN DNDNSKNVGK QLPSPNDPSH SAPMPINQTQ KKLSDATDSS SATLDSLSNS 

       250        260        270        280        290        300 
NDVLNNTPNS STSMDWLDNV IYTNRFVSGD DGSNSKTKNL DSNMFSNDFN FENQFDEQVS 

       310        320        330        340        350        360 
EFCSKMNQVC GTRQCPIPKK PISALDKEVF ASSSILSSNS PALTNTWESH SNITDNTPAN 

       370        380        390        400        410        420 
VIATDATKYE NSFSGFGRLG FDMSANHYVV NDNSTGSTDS TGSTGNKNKK NNNNSDDVLP 

       430        440        450        460        470        480 
FISESPFDMN QVTNFFSPGS TGIGNNAASN TNPSLLQSSK EDIPFINANL AFPDDNSTNI 

       490        500        510        520        530        540 
QLQPFSESQS QNKFDYDMFF RDSSKEGNNL FGEFLEDDDD DKKAANMSDD ESSLIKNQLI 

       550        560        570        580        590        600 
NEEPELPKQY LQSVPGNESE ISQKNGSSLQ NADKINNGND NDNDNDVVPS KEGSLLRCSE 

       610        620        630        640        650            
IWDRITTHPK YSDIDVDGLC SELMAKAKCS ERGVVINAED VQLALNKHMN
3D Structures in PDB
1SSE (NMR)
Comments
Yap1p is a bZIP-containing transcription factor that is essential for the normal response of cells to oxidative process. Under normal conditions, Yap1p is cytosolic, but it becomes nuclear in response to oxidative stress. Kuge et al. showed that the relocalization is mediated through the cystein rich domain (CRD). A hybrid containing the GAL4DBD fused to the CRD is dispersed throughout the cells, as opposed to being nuclear. Upon oxidative stress, it becomes more concentrated in the nucleus. They also reported that mutation of a conserved cystein to threonine (C620) will localize the protein to the nucleus. Yan et al. found that CRM1p forms a complex with Yap1p in vitro and only so in the presence of RanGTP. Mutation L619A will cause nuclear accumulation, so does I614A/V616A. Since Y611A/I614A mutant shows normal cytoplasmic localization, they concluded that L619 and V616 are critical. L619A, C620T, and C629T mutation also disrupt in vitro binding to CRM1. They also noted that the mutations of cysteines probably masked the NES, thus preventing the CRM1 mediated export.
References
[1]. "Crm1p mediates regulated nuclear export of a yeast AP-1-like transcription factor"
Yan, C., Lee, L.H., Davis, L.I. (1998) EMBO J, 17:7416-7429 PubMed
[2]. "Regulation of yAP-1 nuclear localization in response to oxidative stress"
Kuge, S., Jones, N., Nomoto, A. (1997) EMBO J, 16:1710-1720 PubMed
User Input
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