Summary for Spc27 (NES ID: 72)

Full Name
Spindle pole component SPC72     UniProt    
Alternative Names
None
Organism
Saccharomyces cerevisiae (Baker's yeast)    
Experimental Evidence for CRM1-mediated Export
Binds CRM1,  Mislocalization in Xpo1-1 temperature sensitive strains Ref.1Nuclear export receptor Xpo1/Crm1 is physically and functionally linked to the spindle pole body in budding yeast, Neuber et al., Mol Cell Biol, 2008
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L425A/I427A Ref.1Nuclear export receptor Xpo1/Crm1 is physically and functionally linked to the spindle pole body in budding yeast, Neuber et al., Mol Cell Biol, 2008
Mutations That Affect CRM1 Binding
*shown as red residues in the full sequence
L425A/I427A Ref.1Nuclear export receptor Xpo1/Crm1 is physically and functionally linked to the spindle pole body in budding yeast, Neuber et al., Mol Cell Biol, 2008
Functional Export Signals
*shown as underlined residues in the full sequence
418LEKQINDLQIDK429 Ref.1Nuclear export receptor Xpo1/Crm1 is physically and functionally linked to the spindle pole body in budding yeast, Neuber et al., Mol Cell Biol, 2008
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 
MVRRWIPSGR HLRNNDNTGD DDDSEFTNSM DSGMSIPSLR DSMTTRSSHN DPIKPALMND 

        70         80         90        100        110        120 
SNKVKNLEKE LTNAKIKIQV LYEYIRRIPN KDGNAPSLGN DTDFRNSIIE GLNLEINKLK 

       130        140        150        160        170        180 
QDLKAKEVEY QDTLQFVQEN LENSESIVNT INHLLSFILT HFNEQDENAH LLDKEERETL 

       190        200        210        220        230        240 
EETLELSSDY VLEKMDTLSK FIIQFLQDFL HSKSRAESKQ DKEEFLSLAQ SSPAGSQLES 

       250        260        270        280        290        300 
RDSPSSKEEN TDGGYQNDEI HDSNNHIDTE NVMANSTSLP ISAVESRFEK TLDTQLEIVI 

       310        320        330        340        350        360 
ENLHKEYDQF INSIRLKFEK SQKLEKIIAS KLNEQSHLLD SLELEENSSS VIEKQDHLIS 

       370        380        390        400        410        420 
QLKEKIESQS VLINNLEKLK EDIIKMKQNE KVLTKELETQ TKINKLKENN WDSYINDLEK 

       430        440        450        460        470        480 
QINDLQIDKS EEFHVIQNQL DKLDLENYQL KNQLNTLDNQ KLILSQYESN FIKFNQNLLL 

       490        500        510        520        530        540 
HLDSIFNILQ KILQESSIAQ FDRKMKSIKS VPNALKNLNL IQPKLESLYT FIETALESII 

       550        560        570        580        590        600 
NSYISSLISM ETPEQPHQQG NELTATPNKE LTLRIEELQR RWISERERRK LDANASEARI 

       610        620                                             
KALEQENESL RSKLFNLSIN NP
3D Structures in PDB
Not Available
Comments
CRM1 has been found to play a role in control of spindle assembly and cell cycle progression. Neuber et al. showed that in yeast, Xpo1 (CRM1 orthologue), binds to the protein Spc72, a component of the spindle pole body both in vivo and in vitro. They further demonstrated that the binding is mediated by a NES sequence (aa 418-429), which can autonomously direct the export of both GFP, and Spc72 in vivo. The export process was blocked in CRM1 temperature sensitive cells under non-permissive temperature. Mutations to critical hydrophobic residues (aa 425 and 427 to alanines) abolished both in vitro binding to CRM1, and in vivo export of GFP fusion protein.
References
[1]. "Nuclear export receptor Xpo1/Crm1 is physically and functionally linked to the spindle pole body in budding yeast"
Neuber, A., Franke, J., Wittstruck, A., Schlenstedt, G., Sommer, T., Stade, K. (2008) Mol Cell Biol, 28:5348-5358 PubMed
User Input
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