Summary for Sima (NES ID: 152)

Full Name
Protein similar     UniProt    
Alternative Names
None
Organism
Drosophila melanogaster (Fruit fly)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1Regulation of the Drosophila hypoxia-inducible factor alpha Sima by CRM1-dependent nuclear export., Romero et al., Mol Cell Biol, 2008
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L95A/L99A, I117A/L122A, L101A, M115A Ref.1Regulation of the Drosophila hypoxia-inducible factor alpha Sima by CRM1-dependent nuclear export., Romero et al., Mol Cell Biol, 2008
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
77SRDAARCRRSKETEIFMELSAALPLKTDDVNQLDKASVMRITIAFLKIREMLQF130 Ref.1Regulation of the Drosophila hypoxia-inducible factor alpha Sima by CRM1-dependent nuclear export., Romero 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 
MVSLIDTIEA AAEKQKQSQA VVTNTSASSS SCSSSFSSSP PSSSVGSPSP GAPKTNLTAS 

        70         80         90        100        110        120 
GKPKEKRRNN EKRKEKSRDA ARCRRSKETE IFMELSAALP LKTDDVNQLD KASVMRITIA 

       130        140        150        160        170        180 
FLKIREMLQF VPSLRDCNDD IKQDIETAED QQEVKPKLEV GTEDWLNGAE ARELLKQTMD 

       190        200        210        220        230        240 
GFLLVLSHEG DITYVSENVV EYLGITKIDT LGQQIWEYSH QCDHAEIKEA LSLKRELAQK 

       250        260        270        280        290        300 
VKDEPQQNSG VSTHHRDLFV RLKCTLTSRG RSINIKSASY KVIHITGHLV VNAKGERLLM 

       310        320        330        340        350        360 
AIGRPIPHPS NIEIPLGTST FLTKHSLDMR FTYVDDKMHD LLGYSPKDLL DTSLFSCQHG 

       370        380        390        400        410        420 
ADSERLMATF KSVLSKGQGE TSRYRFLGKY GGYCWILSQA TIVYDKLKPQ SVVCVNYVIS 

       430        440        450        460        470        480 
NLENKHEIYS LAQQTAASEQ KEQHHQAAET EKEPEKAADP EIIAQETKET VNTPIHTSEL 

       490        500        510        520        530        540 
QAKPLQLESE KAEKTIEETK TIATIPPVTA TSTADQIKQL PESNPYKQIL QAELLIKREN 

       550        560        570        580        590        600 
HSPGPRTITA QLLSGSSSGL RPEEKRPKSV TASVLRPSPA PPLTPPPTAV LCKKTPLGVE 

       610        620        630        640        650        660 
PNLPPTTTAT AAIISSSNQQ LQIAQQTQLQ NPQQPAQDMS KGFCSLFADD GRGLTMLKEE 

       670        680        690        700        710        720 
PDDLSHHLAS TNCIQLDEMT PFSDMLVGLM GTCLLPEDIN SLDSTTCSTT ASGQHYQSPS 

       730        740        750        760        770        780 
SSSTSAPSNT SSSNNSYANS PLSPLTPNST ATASNPSHQQ QQQHHNQQQQ QQQQQQHHPQ 

       790        800        810        820        830        840 
HHDNSNSSSN IDPLFNYREE SNDTSCSQHL HSPSITSKSP EDSSLPSLCS PNSLTQEDDF 

       850        860        870        880        890        900 
SFEAFAMRAP YIPIDDDMPL LTETDLMWCP PEDLQTMVPK EIDAIQQQLQ QLQQQHHQQY 

       910        920        930        940        950        960 
AGNTGYQQQQ QQPQLQQQHF SNSLCSSPAS TVSSLSPSPV QQHHQQQQAA VFTSDSSELA 

       970        980        990       1000       1010       1020 
ALLCGSGNGT LSILAGSGVT VAEECNERLQ QHQQQQQQTS GNEFRTFQQL QQELQLQEEQ 

      1030       1040       1050       1060       1070       1080 
QQRQQQQQQQ QQQQQQQQLL SLNIECKKEK YDVQMGGSLC HPMEDAFEND YSKDSANLDC 

      1090       1100       1110       1120       1130       1140 
WDLIQMQVVD TEPVSPNAAS PTPCKVSAIQ LLQQQQQLQQ QQQQQQNIIL NAVPLITIQN 

      1150       1160       1170       1180       1190       1200 
NKELMQQQQQ QQQQQQQEQL QQPAIKLLNG ASIAPVNTKA TIRLVESKPP TTTQSRMAKV 

      1210       1220       1230       1240       1250       1260 
NLVPQQQQHG NKRHLNSATG AGNPVESKRL KSGTLCLDVQ SPQLLQQLIG KDPAQQQTQA 

      1270       1280       1290       1300       1310       1320 
AKRAGSERWQ LSAESKQQKQ QQQQSNSVLK NLLVSGRDDD DSEAMIIDED NSLVQPIPLG 

      1330       1340       1350       1360       1370       1380 
KYGLPLHCHT STSSVLRDYH NNPLISGTNF QLSPVFGGSD SSGGDGETGS VVSLDDSVPP 

      1390       1400       1410       1420       1430       1440 
GLTACDTDAS SDSGIDENSL MDGASGSPRK RLSSTSNSTN QAESAPPALD VETPVTQKSV 

      1450       1460       1470       1480       1490       1500 
EEEFEGGGSG SNAPSRKTSI SFLDSSNPLL HTPAMMDLVN DDYIMGEGGF EFSDNQLEQV 

                                                                  
LGWPEIA
3D Structures in PDB
Not Available
Comments
Sima is a hypoxia inducible transcriptional response in Drosophila that is homologous to mammalian hypoxia-inducible factors α-subunit. When the cells are exposed to extreme hypoxic conditions, Sima accumulates totally in the nucleus, and after reoxygenation it is completely exported to the cytoplasm. Romero et al. identified a bipartie NLS from aa 1210-1229 and two NESs in the helix-loop-helix domain. Amino acids 1007-1016 and 1128-1138 resemble NES consensus. However, neither is functional as shown by experiments. Although the NES sequences are conserved in HIF-α of mammalian species, it is not clear if the export of mammalian HIF-α is CRM1-dependent.
References
[1]. "Regulation of the Drosophila hypoxia-inducible factor alpha Sima by CRM1-dependent nuclear export."
Romero NM, Irisarri M, Roth P, Cauerhff A, Samakovlis C, Wappner P (2008) Mol Cell Biol, 28:3410-23 PubMed
User Input
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