Summary for DDX17 (NES ID: 328)

Full Name
Probable ATP-dependent RNA helicase DDX17     UniProt    
Alternative Names
DEAD box protein 17, DEAD box protein p72, DEAD box protein p82, RNA-dependent helicase p72   
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive,  Binds CRM1 Ref.1DDX17 nucleocytoplasmic shuttling promotes acquired gefitinib resistance in non-small cell lung cancer cells via activation of β-catenin, Li et al., Cancer Lett, 2017
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L144A/Y147A/E148A/E151A/L152A/R154A, L226A/L227A/A229A/I230A/P237A/D243A/G244A/P245A, K284A/K284A/E292A/V295A/C298A/G303A/L305A, I448A/Q454A/P455A/R457A/D458A Ref.1DDX17 nucleocytoplasmic shuttling promotes acquired gefitinib resistance in non-small cell lung cancer cells via activation of β-catenin, Li et al., Cancer Lett, 2017
Mutations That Affect CRM1 Binding
*shown as red residues in the full sequence
L144A/Y147A/E148A/E151A/L152A/R154A/L226A/L227A/A229A/I230A/P237A/D243A/G244A/P245A/K284A/K284A/E292A/V295A/C298A/G303A/L305A/I448A/Q454A/P455A/R457A/D458A Ref.1DDX17 nucleocytoplasmic shuttling promotes acquired gefitinib resistance in non-small cell lung cancer cells via activation of β-catenin, Li et al., Cancer Lett, 2017
Functional Export Signals
Undetermined
Secondary Structure of Export Signal
alpha-helix and loop
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 
MPTGFVAPIL CVLLPSPTRE AATVASATGD SASERESAAP AAAPTAEAPP PSVVTRPEPQ 

        70         80         90        100        110        120 
ALPSPAIRAP LPDLYPFGTM RGGGFGDRDR DRDRGGFGAR GGGGLPPKKF GNPGERLRKK 

       130        140        150        160        170        180 
KWDLSELPKF EKNFYVEHPE VARLTPYEVD ELRRKKEITV RGGDVCPKPV FAFHHANFPQ 

       190        200        210        220        230        240 
YVMDVLMDQH FTEPTPIQCQ GFPLALSGRD MVGIAQTGSG KTLAYLLPAI VHINHQPYLE 

       250        260        270        280        290        300 
RGDGPICLVL APTRELAQQV QQVADDYGKC SRLKSTCIYG GAPKGPQIRD LERGVEICIA 

       310        320        330        340        350        360 
TPGRLIDFLE SGKTNLRRCT YLVLDEADRM LDMGFEPQIR KIVDQIRPDR QTLMWSATWP 

       370        380        390        400        410        420 
KEVRQLAEDF LRDYTQINVG NLELSANHNI LQIVDVCMES EKDHKLIQLM EEIMAEKENK 

       430        440        450        460        470        480 
TIIFVETKRR CDDLTRRMRR DGWPAMCIHG DKSQPERDWV LNEFRSGKAP ILIATDVASR 

       490        500        510        520        530        540 
GLDVEDVKFV INYDYPNSSE DYVHRIGRTA RSTNKGTAYT FFTPGNLKQA RELIKVLEEA 

       550        560        570        580        590        600 
NQAINPKLMQ LVDHRGGGGG GGGRSRYRTT SSANNPNLMY QDECDRRLRG VKDGGRRDSA 

       610        620        630        640        650        660 
SYRDRSETDR AGYANGSGYG SPNSAFGAQA GQYTYGQGTY GAAAYGTSSY TAQEYGAGTY 

       670        680        690        700        710        720 
GASSTTSTGR SSQSSSQQFS GIGRSGQQPQ PLMSQQFAQP PGATNMIGYM GQTAYQYPPP 

                                                                  
PPPPPPSRK
3D Structures in PDB
6UV3 (X-Ray,1.6 Å resolution)
Comments
DDX17 is a member of the DEAD box family of RNA helicases. It is a transcriptional co-regulator involved in diverse processes in normal cells and cancer development. Li et al. found that it is a nucleocytoplasmic shuttling protein, mediated by possibly 2 NLSs and 4 NESs. LMB treatment, as well as mutations to the four individual NES and all combined, caused nuclear accumulation of the protein as well as loss of CRM1 interaction by co-IP. However none of the NES identified match known NES consensus well and they are all part of a folded domain. All of the hydrophobic side chains are showed buried in the X-ray structure and only NES4 is moderately close to the disordered C-terminal which may partially unfold and become accessible.
References
[1]. "DDX17 nucleocytoplasmic shuttling promotes acquired gefitinib resistance in non-small cell lung cancer cells via activation of β-catenin"
Li K, Mo C, Gong D, Chen Y, Huang Z, Li Y, Zhang J, Huang L, Li Y, Fuller-Pace FV, Lin P, Wei Y. (2017) Cancer Lett, 400:194-202 PubMed
User Input
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