Summary for mTOR (NES ID: 384)

Full Name
Mammalian target of rapamycin     UniProt    
Alternative Names
FK506-binding protein 12-rapamycin complex-associated protein 1, FKBP12-rapamycin complex-associated protein   
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive,  Reporter activity when co-expressed with CRM1 Ref.2Using a Simple Cellular Assay to Map NES Motifs in Cancer-Related Proteins, Gain Insight into CRM1-Mediated NES Export, and Search for NES-Harboring Micropeptides, Sendino et al., Int J Mol Sci, 2020 Ref.3A nuclear transport signal in mammalian target of rapamycin is critical for its cytoplasmic signaling to S6 kinase 1, Bachmann et al., J Biol Chem, 2006 Ref.4Cytoplasmic-nuclear shuttling of FKBP12-rapamycin-associated protein is involved in rapamycin-sensitive signaling and translation initiation, Kim et al., Proc Natl Acad Sci U S A, 2000
Mutations That Affect Nuclear Export
Unknown
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
535IQDGLLKMLSLVL547, 975ITFIFKSLGL984, 1281LEWLRRLSL1289, 649VQVVADVLSKLLVVGITDPD668 Ref.2Using a Simple Cellular Assay to Map NES Motifs in Cancer-Related Proteins, Gain Insight into CRM1-Mediated NES Export, and Search for NES-Harboring Micropeptides, Sendino et al., Int J Mol Sci, 2020 Ref.3A nuclear transport signal in mammalian target of rapamycin is critical for its cytoplasmic signaling to S6 kinase 1, Bachmann et al., J Biol Chem, 2006
Secondary Structure of Export Signal
α-helix
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 
MLGTGPAAAT TAATTSSNVS VLQQFASGLK SRNEETRAKA AKELQHYVTM ELREMSQEES 

        70         80         90        100        110        120 
TRFYDQLNHH IFELVSSSDA NERKGGILAI ASLIGVEGGN ATRIGRFANY LRNLLPSNDP 

       130        140        150        160        170        180 
VVMEMASKAI GRLAMAGDTF TAEYVEFEVK RALEWLGADR NEGRRHAAVL VLRELAISVP 

       190        200        210        220        230        240 
TFFFQQVQPF FDNIFVAVWD PKQAIREGAV AALRACLILT TQREPKEMQK PQWYRHTFEE 

       250        260        270        280        290        300 
AEKGFDETLA KEKGMNRDDR IHGALLILNE LVRISSMEGE RLREEMEEIT QQQLVHDKYC 

       310        320        330        340        350        360 
KDLMGFGTKP RHITPFTSFQ AVQPQQSNAL VGLLGYSSHQ GLMGFGTSPS PAKSTLVESR 

       370        380        390        400        410        420 
CCRDLMEEKF DQVCQWVLKC RNSKNSLIQM TILNLLPRLA AFRPSAFTDT QYLQDTMNHV 

       430        440        450        460        470        480 
LSCVKKEKER TAAFQALGLL SVAVRSEFKV YLPRVLDIIR AALPPKDFAH KRQKAMQVDA 

       490        500        510        520        530        540 
TVFTCISMLA RAMGPGIQQD IKELLEPMLA VGLSPALTAV LYDLSRQIPQ LKKDIQDGLL 

       550        560        570        580        590        600 
KMLSLVLMHK PLRHPGMPKG LAHQLASPGL TTLPEASDVG SITLALRTLG SFEFEGHSLT 

       610        620        630        640        650        660 
QFVRHCADHF LNSEHKEIRM EAARTCSRLL TPSIHLISGH AHVVSQTAVQ VVADVLSKLL 

       670        680        690        700        710        720 
VVGITDPDPD IRYCVLASLD ERFDAHLAQA ENLQALFVAL NDQVFEIREL AICTVGRLSS 

       730        740        750        760        770        780 
MNPAFVMPFL RKMLIQILTE LEHSGIGRIK EQSARMLGHL VSNAPRLIRP YMEPILKALI 

       790        800        810        820        830        840 
LKLKDPDPDP NPGVINNVLA TIGELAQVSG LEMRKWVDEL FIIIMDMLQD SSLLAKRQVA 

       850        860        870        880        890        900 
LWTLGQLVAS TGYVVEPYRK YPTLLEVLLN FLKTEQNQGT RREAIRVLGL LGALDPYKHK 

       910        920        930        940        950        960 
VNIGMIDQSR DASAVSLSES KSSQDSSDYS TSEMLVNMGN LPLDEFYPAV SMVALMRIFR 

       970        980        990       1000       1010       1020 
DQSLSHHHTM VVQAITFIFK SLGLKCVQFL PQVMPTFLNV IRVCDGAIRE FLFQQLGMLV 

      1030       1040       1050       1060       1070       1080 
SFVKSHIRPY MDEIVTLMRE FWVMNTSIQS TIILLIEQIV VALGGEFKLY LPQLIPHMLR 

      1090       1100       1110       1120       1130       1140 
VFMHDNSPGR IVSIKLLAAI QLFGANLDDY LHLLLPPIVK LFDAPEAPLP SRKAALETVD 

      1150       1160       1170       1180       1190       1200 
RLTESLDFTD YASRIIHPIV RTLDQSPELR STAMDTLSSL VFQLGKKYQI FIPMVNKVLV 

      1210       1220       1230       1240       1250       1260 
RHRINHQRYD VLICRIVKGY TLADEEEDPL IYQHRMLRSG QGDALASGPV ETGPMKKLHV 

      1270       1280       1290       1300       1310       1320 
STINLQKAWG AARRVSKDDW LEWLRRLSLE LLKDSSSPSL RSCWALAQAY NPMARDLFNA 

      1330       1340       1350       1360       1370       1380 
AFVSCWSELN EDQQDELIRS IELALTSQDI AEVTQTLLNL AEFMEHSDKG PLPLRDDNGI 

      1390       1400       1410       1420       1430       1440 
VLLGERAAKC RAYAKALHYK ELEFQKGPTP AILESLISIN NKLQQPEAAA GVLEYAMKHF 

      1450       1460       1470       1480       1490       1500 
GELEIQATWY EKLHEWEDAL VAYDKKMDTN KDDPELMLGR MRCLEALGEW GQLHQQCCEK 

      1510       1520       1530       1540       1550       1560 
WTLVNDETQA KMARMAAAAA WGLGQWDSME EYTCMIPRDT HDGAFYRAVL ALHQDLFSLA 

      1570       1580       1590       1600       1610       1620 
QQCIDKARDL LDAELTAMAG ESYSRAYGAM VSCHMLSELE EVIQYKLVPE RREIIRQIWW 

      1630       1640       1650       1660       1670       1680 
ERLQGCQRIV EDWQKILMVR SLVVSPHEDM RTWLKYASLC GKSGRLALAH KTLVLLLGVD 

      1690       1700       1710       1720       1730       1740 
PSRQLDHPLP TVHPQVTYAY MKNMWKSARK IDAFQHMQHF VQTMQQQAQH AIATEDQQHK 

      1750       1760       1770       1780       1790       1800 
QELHKLMARC FLKLGEWQLN LQGINESTIP KVLQYYSAAT EHDRSWYKAW HAWAVMNFEA 

      1810       1820       1830       1840       1850       1860 
VLHYKHQNQA RDEKKKLRHA SGANITNATT AATTAATATT TASTEGSNSE SEAESTENSP 

      1870       1880       1890       1900       1910       1920 
TPSPLQKKVT EDLSKTLLMY TVPAVQGFFR SISLSRGNNL QDTLRVLTLW FDYGHWPDVN 

      1930       1940       1950       1960       1970       1980 
EALVEGVKAI QIDTWLQVIP QLIARIDTPR PLVGRLIHQL LTDIGRYHPQ ALIYPLTVAS 

      1990       2000       2010       2020       2030       2040 
KSTTTARHNA ANKILKNMCE HSNTLVQQAM MVSEELIRVA ILWHEMWHEG LEEASRLYFG 

      2050       2060       2070       2080       2090       2100 
ERNVKGMFEV LEPLHAMMER GPQTLKETSF NQAYGRDLME AQEWCRKYMK SGNVKDLTQA 

      2110       2120       2130       2140       2150       2160 
WDLYYHVFRR ISKQLPQLTS LELQYVSPKL LMCRDLELAV PGTYDPNQPI IRIQSIAPSL 

      2170       2180       2190       2200       2210       2220 
QVITSKQRPR KLTLMGSNGH EFVFLLKGHE DLRQDERVMQ LFGLVNTLLA NDPTSLRKNL 

      2230       2240       2250       2260       2270       2280 
SIQRYAVIPL STNSGLIGWV PHCDTLHALI RDYREKKKIL LNIEHRIMLR MAPDYDHLTL 

      2290       2300       2310       2320       2330       2340 
MQKVEVFEHA VNNTAGDDLA KLLWLKSPSS EVWFDRRTNY TRSLAVMSMV GYILGLGDRH 

      2350       2360       2370       2380       2390       2400 
PSNLMLDRLS GKILHIDFGD CFEVAMTREK FPEKIPFRLT RMLTNAMEVT GLDGNYRITC 

      2410       2420       2430       2440       2450       2460 
HTVMEVLREH KDSVMAVLEA FVYDPLLNWR LMDTNTKGNK RSRTRTDSYS AGQSVEILDG 

      2470       2480       2490       2500       2510       2520 
VELGEPAHKK TGTTVPESIH SFIGDGLVKP EALNKKAIQI INRVRDKLTG RDFSHDDTLD 

      2530       2540                                             
VPTQVELLIK QATSHENLCQ CYIGWCPFW
3D Structures in PDB
1AUE (X-ray,2.33 Å resolution)
2GAQ (NMR, Å resolution)
4JSN (X-ray,3.20 Å resolution)
6BCX (CryoEM,3.00 Å resolution)
Comments
mTOR is a master regulator for cellular metabolism and environmental and stress response. It is found to be LMB-sensitive in its cellular localization and downstream signaling reported by Kim and Chen in 2000. It is also found in proteomics screen by Kirli. et al as a possible CRM1 cargo. Bachmann et al. identifed three active NESs (NES1 in 535-547, NES2 in 975-984, and NES3 in 1281-1289) which showed LMB-sensitive nuclear export activity in a rapamycin-induced FRB and GAL4 fusion reporter. Leucine mutations to the NESs in full-length protein (L545A/L547A, L982A/L984A and L1287A/L1289A) caused the loss of sensitivity to LMB but no nuclear accumulation, likely due to loss of import. NES3 is also found by Sendino et al. as a strong NES in Rev1.4-GFP and SRVB/A reporter assays, along with another weak NES in 649-668 (NES4). It is unknown whether these NESs are functional in full-length mTOR. All of the listed NESs form helices as part of the helical repeat structure of mTOR, and none of them appear totally accessible in full-length protein. Ref.1A deep proteomics perspective on CRM1-mediated nuclear export and nucleocytoplasmic partitioning, Kirli et al., eLife, 2015 Ref.2Using a Simple Cellular Assay to Map NES Motifs in Cancer-Related Proteins, Gain Insight into CRM1-Mediated NES Export, and Search for NES-Harboring Micropeptides, Sendino et al., Int J Mol Sci, 2020 Ref.3A nuclear transport signal in mammalian target of rapamycin is critical for its cytoplasmic signaling to S6 kinase 1, Bachmann et al., J Biol Chem, 2006 Ref.4Cytoplasmic-nuclear shuttling of FKBP12-rapamycin-associated protein is involved in rapamycin-sensitive signaling and translation initiation, Kim et al., Proc Natl Acad Sci U S A, 2000
References
[1]. "A deep proteomics perspective on CRM1-mediated nuclear export and nucleocytoplasmic partitioning"
Kırlı K, Karaca S, Dehne HJ, Samwer M, Pan KT, Lenz C, Urlaub H, Görlich D. (2015) eLife, 4:e11466 PubMed
[2]. "Using a Simple Cellular Assay to Map NES Motifs in Cancer-Related Proteins, Gain Insight into CRM1-Mediated NES Export, and Search for NES-Harboring Micropeptides"
Sendino M, Omaetxebarria MJ, Prieto G, Rodriguez JA. (2020) Int J Mol Sci, 21(17):E6341 PubMed
[3]. "A nuclear transport signal in mammalian target of rapamycin is critical for its cytoplasmic signaling to S6 kinase 1"
Bachmann RA, Kim JH, Wu AL, Park IH, Chen J. (2006) J Biol Chem, 281(11):7357-63 PubMed
[4]. "Cytoplasmic-nuclear shuttling of FKBP12-rapamycin-associated protein is involved in rapamycin-sensitive signaling and translation initiation"
Kim JE, Chen J. (2000) Proc Natl Acad Sci U S A, 97(26):14340-5 PubMed
User Input
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