Summary for mPER2 (NES ID: 31)

Full Name
Period circadian protein homolog 2     UniProt    
Alternative Names
Circadian clock protein PERIOD 2   
Organism
Mus musculus (Mouse)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1Nuclear export of mammalian PERIOD proteins, Vielhaber et al., J Biol Chem, 2001
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
I464A/L467A/M469K, M469K Ref.1Nuclear export of mammalian PERIOD proteins, Vielhaber et al., J Biol Chem, 2001
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
382KILQAGGQPFDYSPIRFRTRNGEYITLDTSWSSFINPWSRKISFIIGRHKVRVGPLNEDV
FAAPPCPEEKTPHPSVQELTEQIHRLLM469 Ref.1Nuclear export of mammalian PERIOD proteins, Vielhaber et al., J Biol Chem, 2001
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 
MNGYVDFSPS PTSPTKEPGA PQPTQAVLQE DVDMSSGSSG NENCSTGRDS QGSDCDDNGK 

        70         80         90        100        110        120 
ELRMLVESSN THPSPDDAFR LMMTEAEHNP STSGCSSEQS AKADAHKELI RTLKELKVHL 

       130        140        150        160        170        180 
PADKKAKGKA STLATLKYAL RSVKQVKANE EYYQLLMSSE SQPCSVDVPS YSMEQVEGIT 

       190        200        210        220        230        240 
SEYIVKNADM FAVAVSLVSG KILYISNQVA SIFHCKKDAF SDAKFVEFLA PHDVSVFHSY 

       250        260        270        280        290        300 
TTPYKLPPWS VCSGLDSFTQ ECMEEKSFFC RVSVGKHHEN EIRYQPFRMT PYLVKVQEQQ 

       310        320        330        340        350        360 
GAESQLCCLL LAERVHSGYE APRIPPEKRI FTTTHTPNCL FQAVDERAVP LLGYLPQDLI 

       370        380        390        400        410        420 
ETPVLVQLHP SDRPLMLAIH KKILQAGGQP FDYSPIRFRT RNGEYITLDT SWSSFINPWS 

       430        440        450        460        470        480 
RKISFIIGRH KVRVGPLNED VFAAPPCPEE KTPHPSVQEL TEQIHRLLMQ PVPHSGSSGY 

       490        500        510        520        530        540 
GSLGSNGSHE HLMSQTSSSD SNGQEESHRR RSGIFKTSGK IQTKSHVSHE SGGQKEASVA 

       550        560        570        580        590        600 
EMQSSPPAQV KAVTTIERDS SGASLPKASF PEELAYKNQP PCSYQQISCL DSVIRYLESC 

       610        620        630        640        650        660 
SEAATLKRKC EFPANIPSRK ATVSPGLHSG EAARPSKVTS HTEVSAHLSS LTLPGKAESV 

       670        680        690        700        710        720 
VSLTSQCSYS STIVHVGDKK PQPELETVED MASGPESLDG AAGGLSQEKG PLQKLGLTKE 

       730        740        750        760        770        780 
VLAAHTQKEE QGFLQRFREV SRLSALQAHC QNYLQERSRA QASDRGLRNT SGLESSWKKT 

       790        800        810        820        830        840 
GKNRKLKSKR VKTRDSSEST GSGGPVSHRP PLMGLNATAW SPSDTSQSSC PSAPFPTAVP 

       850        860        870        880        890        900 
AYPLPVFQAP GIVSTPGTVV APPAATHTGF TMPVVPMGTQ PEFAVQPLPF AAPLAPVMAF 

       910        920        930        940        950        960 
MLPSYPFPPA TPNLPQAFLP SQPHFPAHPT LASEITPASQ AEFPSRTSTL RQPCACPVTP 

       970        980        990       1000       1010       1020 
PAGTVALGRA SPPLFQSRGS SPLQLNLLQL EEAPEGSTGA AGTLGTTGTA ASGLDCTSGT 

      1030       1040       1050       1060       1070       1080 
SRDRQPKAPP TCNEPSDTQN SDAISTSSDL LNLLLGEDLC SATGSALSRS GASATSDSLG 

      1090       1100       1110       1120       1130       1140 
SSSLGFGTSQ SGAGSSDTSH TSKYFGSIDS SENNHKAKMI PDTEESEQFI KYVLQDPIWL 

      1150       1160       1170       1180       1190       1200 
LMANTDDSIM MTYQLPSRDL QAVLKEDQEK LKLLQRSQPR FTEGQRRELR EVHPWVHTGG 

      1210       1220       1230       1240       1250            
LPTAIDVTGC VYCESEEKGN ICLPYEEDSP SPGLCDTSEA KEEEGEQLTG PRIEAQT
3D Structures in PDB
Not Available
Comments
PER proteins (1-3) are circadian regulators and play a role in the regulation of circadian rhythm. In mammals, the nuclear localization of PER proteins is controlled by multiple mechanisms. Vielhaber et al. found that aa 411-498 of mPER2, when fused to YFP-NLS, was sufficient to re-localize YFP-NLS from nucleus to cytoplasm (note: the consensus sequence amoung PER proteins for mPER1 is 457-469). Mutations of I464, L467, and M469 to alanines and lysine prevented the cytoplasmic accumulations of YFP-NLS, and the export was also blocked by LMB treatment. They also found the single mutation of M469 to lysine greatly impairs the export ability.
References
[1]. "Nuclear export of mammalian PERIOD proteins"
Vielhaber, E.L., Duricka, D., Ullman, K.S., Virshup, D.M. (2001) J Biol Chem, 276:45921-45927 PubMed
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