Summary for β-DG (NES ID: 311)

Full Name
β-Dystroglycan     UniProt    
Alternative Names
Dystrophin-associated glycoprotein 1   
Organism
Mus musculus (Mouse)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive,  Binds CRM1 Ref.1Control of nuclear β-dystroglycan content is crucial for the maintenance of nuclear envelope integrity and function, Velez et al., Biochim Biophys Acta Mol Cell Res, 2018
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L763A/I764A/A765A Ref.1Control of nuclear β-dystroglycan content is crucial for the maintenance of nuclear envelope integrity and function, Velez et al., Biochim Biophys Acta Mol Cell Res, 2018
Mutations That Affect CRM1 Binding
*shown as red residues in the full sequence
L763A/I764A/A765A Ref.1Control of nuclear β-dystroglycan content is crucial for the maintenance of nuclear envelope integrity and function, Velez et al., Biochim Biophys Acta Mol Cell Res, 2018
Functional Export Signals
*shown as underlined residues in the full sequence
763LIAGIIAMIC772 Ref.1Control of nuclear β-dystroglycan content is crucial for the maintenance of nuclear envelope integrity and function, Velez et al., Biochim Biophys Acta Mol Cell Res, 2018
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 
MSVDNWLLHP LWGQTFLLLL SVAVAQAHWP SEPSEAVRDW KNQLEASMHS VLSDFQEAVP 

        70         80         90        100        110        120 
TVVGIPDGTA VVGRSFRVSI PTDLIASSGE IIKVSAAGKE ALPSWLHWDP HSHILEGLPL 

       130        140        150        160        170        180 
DTDKGVHYIS VSAARLGANG SHVPQTSSVF SIEVYPEDHN EPQSVRAASS DPGEVVPSAC 

       190        200        210        220        230        240 
AADEPVTVLT VILDADLTKM TPKQRIDLLN RMQSFSEVEL HNMKLVPVVN NRLFDMSAFM 

       250        260        270        280        290        300 
AGPGNAKKVV ENGALLSWKL GCSLNQNSVP DIRGVETPAR EGAMSAQLGY PVVGWHIANK 

       310        320        330        340        350        360 
KPTLPKRLRR QIHATPTPVT AIGPPTTAIQ EPPSRIVPTP TSPAIAPPTE TMAPPVRDPV 

       370        380        390        400        410        420 
PGKPTVTIRT RGAIIQTPTL GPIQPTRVSE AGTTVPGQIR PTLTIPGYVE PTAVITPPTT 

       430        440        450        460        470        480 
TTKKPRVSTP KPATPSTDSS TTTTRRPTKK PRTPRPVPRV TTKAPITRLE TASPPTRIRT 

       490        500        510        520        530        540 
TTSGVPRGGE PNQRPELKNH IDRVDAWVGT YFEVKIPSDT FYDNEDTTTD KLKLTLKLRE 

       550        560        570        580        590        600 
QQLVGEKSWV QFNSNSQLMY GLPDSSHVGK HEYFMHATDK GGLSAVDAFE IHVHKRPQGD 

       610        620        630        640        650        660 
KAPARFKARL AGDPAPVVND IHKKIALVKK LAFAFGDRNC SSITLQNITR GSIVVEWTNN 

       670        680        690        700        710        720 
TLPLEPCPKE QIIGLSRRIA DENGKPRPAF SNALEPDFKA LSIAVTGSGS CRHLQFIPVA 

       730        740        750        760        770        780 
PPSPGSSAAP ATEVPDRDPE KSSEDDVYLH TVIPAVVVAA ILLIAGIIAM ICYRKKRKGK 

       790        800        810        820        830        840 
LTLEDQATFI KKGVPIIFAD ELDDSKPPPS SSMPLILQEE KAPLPPPEYP NQSMPETTPL 

       850        860        870        880        890            
NQDTVGEYTP LRDEDPNAPP YQPPPPFTAP MEGKGSRPKN MTPYRSPPPY VPP
3D Structures in PDB
Not Available
Comments
Dystroglycan is a complex with diverse roles in connecting the extracellular matrix to the cytoskeleton. It is cleaved into two chains, α(28-651) and β(625-893). β-DG is a transmembrane protein and has been found to be imported through the action of a NLS to the nucleus. Vélez-Aguilera et al. identified a putative NES in the transmembrane domain of the protein (excess of hydrophobic residues while matching known consensus). The peptide alone has LMB-sensitive export activity. Full-length protein is also LMB sensitive and leucine mutations caused nuclear accumulation. CRM1 interaction is confirmed in vitro with purified proteins and cell lysates. The study shows that since the NES is in the transmembrane domain and therefore inaccessible when associated with the nuclear envelope, only proteins in the nucleoplasm were exported by CRM1.
References
[1]. "Control of nuclear β-dystroglycan content is crucial for the maintenance of nuclear envelope integrity and function"
Vélez-Aguilera G, de Dios Gómez-López J, Jiménez-Gutiérrez GE, Vásquez-Limeta A, Laredo-Cisneros MS, Gómez P, Winder SJ, Cisneros B. (2018) Biochim Biophys Acta Mol Cell Res, 1865(2):406-420 PubMed
User Input
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