Summary for Smurf1 (NES ID: 58)

Full Name
E3 ubiquitin-protein ligase SMURF1     UniProt    
Alternative Names
SMAD ubiquitination regulatory factor 1
SMAD-specific E3 ubiquitin-protein ligase 1   
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive,  Binds CRM1 Ref.1Chromosomal region maintenance 1 (CRM1)-dependent nuclear export of Smad ubiquitin regulatory factor 1 (Smurf1) is essential for negative regulation of transforming growth factor-beta signaling by Smad7., Tajima et al., J Biol Chem, 2003
Mutations That Affect Nuclear Export
Unknown
Mutations That Affect CRM1 Binding
*shown as red residues in the full sequence
I612A/L614A Ref.1Chromosomal region maintenance 1 (CRM1)-dependent nuclear export of Smad ubiquitin regulatory factor 1 (Smurf1) is essential for negative regulation of transforming growth factor-beta signaling by Smad7., Tajima et al., J Biol Chem, 2003
Functional Export Signals
*shown as underlined residues in the full sequence
603ELIIGGLDKIDL614 Ref.1Chromosomal region maintenance 1 (CRM1)-dependent nuclear export of Smad ubiquitin regulatory factor 1 (Smurf1) is essential for negative regulation of transforming growth factor-beta signaling by Smad7., Tajima et al., J Biol Chem, 2003
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 
MSNPGTRRNG SSIKIRLTVL CAKNLAKKDF FRLPDPFAKI VVDGSGQCHS TDTVKNTLDP 

        70         80         90        100        110        120 
KWNQHYDLYV GKTDSITISV WNHKKIHKKQ GAGFLGCVRL LSNAISRLKD TGYQRLDLCK 

       130        140        150        160        170        180 
LNPSDTDAVR GQIVVSLQTR DRIGTGGSVV DCRGLLENEG TVYEDSGPGR PLSCFMEEPA 

       190        200        210        220        230        240 
PYTDSTGAAA GGGNCRFVES PSQDQRLQAQ RLRNPDVRGS LQTPQNRPHG HQSPELPEGY 

       250        260        270        280        290        300 
EQRTTVQGQV YFLHTQTGVS TWHDPRIPRD LNSVNCDELG PLPPGWEVRS TVSGRIYFVD 

       310        320        330        340        350        360 
HNNRTTQFTD PRLHHIMNHQ CQLKEPSQPL PLPSEGSLED EELPAQRYER DLVQKLKVLR 

       370        380        390        400        410        420 
HELSLQQPQA GHCRIEVSRE EIFEESYRQI MKMRPKDLKK RLMVKFRGEE GLDYGGVARE 

       430        440        450        460        470        480 
WLYLLCHEML NPYYGLFQYS TDNIYMLQIN PDSSINPDHL SYFHFVGRIM GLAVFHGHYI 

       490        500        510        520        530        540 
NGGFTVPFYK QLLGKPIQLS DLESVDPELH KSLVWILEND ITPVLDHTFC VEHNAFGRIL 

       550        560        570        580        590        600 
QHELKPNGRN VPVTEENKKE YVRLYVNWRF MRGIEAQFLA LQKGFNELIP QHLLKPFDQK 

       610        620        630        640        650        660 
ELELIIGGLD KIDLNDWKSN TRLKHCVADS NIVRWFWQAV ETFDEERRAR LLQFVTGSTR 

       670        680        690        700        710        720 
VPLQGFKALQ GSTGAAGPRL FTIHLIDANT DNLPKAHTCF NRIDIPPYES YEKLYEKLLT 

       730                                                        
AVEETCGFAV E
3D Structures in PDB
Not Available
Comments
Both Smad1 and Smad4 have been shown to contain NESs. No NES has been identified in Smad7. Smad7 is located in the nucleus in most cells. HECT type E3 ubiquitin ligase, Smad ubiquitin regulatory factor 1 (Smurf1) has been reported to interact with Smad7 in the nucleus and translocate together into the cytoplasm. Smurf1 was shown to contain an NES in the C-terminus and the whole protein interacts with CRM1 by co-immunoprecipitation.
References
[1]. "Chromosomal region maintenance 1 (CRM1)-dependent nuclear export of Smad ubiquitin regulatory factor 1 (Smurf1) is essential for negative regulation of transforming growth factor-beta signaling by Smad7."
Tajima Y, Goto K, Yoshida M, Shinomiya K, Sekimoto T, Yoneda Y, Miyazono K, Imamura T (2003) J Biol Chem, 278:10716-21 PubMed
User Input
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