Summary for Mps1 (NES ID: 263)

Full Name
Dual specificity protein kinase TTK     UniProt    
Alternative Names
None
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
Mutations That Affect Nuclear Export
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
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
MESEDLSGRE LTIDSIMNKV RDIKNKFKNE DLTDELSLNK ISADTTDNSG TVNQIMMMAN
70 80 90 100 110 120
NPEDWLSLLL KLEKNSVPLS DALLNKLIGR YSQAIEALPP DKYGQNESFA RIQVRFAELK
130 140 150 160 170 180
AIQEPDDARD YFQMARANCK KFAFVHISFA QFELSQGNVK KSKQLLQKAV ERGAVPLEML
190 200 210 220 230 240
EIALRNLNLQ KKQLLSEEEK KNLSASTVLT AQESFSGSLG HLQNRNNSCD SRGQTTKARF
250 260 270 280 290 300
LYGENMPPQD AEIGYRNSLR QTNKTKQSCP FGRVPVNLLN SPDCDVKTDD SVVPCFMKRQ
310 320 330 340 350 360
TSRSECRDLV VPGSKPSGND SCELRNLKSV QNSHFKEPLV SDEKSSELII TDSITLKNKT
370 380 390 400 410 420
ESSLLAKLEE TKEYQEPEVP ESNQKQWQSK RKSECINQNP AASSNHWQIP ELARKVNTEQ
430 440 450 460 470 480
KHTTFEQPVF SVSKQSPPIS TSKWFDPKSI CKTPSSNTLD DYMSCFRTPV VKNDFPPACQ
490 500 510 520 530 540
LSTPYGQPAC FQQQQHQILA TPLQNLQVLA SSSANECISV KGRIYSILKQ IGSGGSSKVF
550 560 570 580 590 600
QVLNEKKQIY AIKYVNLEEA DNQTLDSYRN EIAYLNKLQQ HSDKIIRLYD YEITDQYIYM
610 620 630 640 650 660
VMECGNIDLN SWLKKKKSID PWERKSYWKN MLEAVHTIHQ HGIVHSDLKP ANFLIVDGML
670 680 690 700 710 720
KLIDFGIANQ MQPDTTSVVK DSQVGTVNYM PPEAIKDMSS SRENGKSKSK ISPKSDVWSL
730 740 750 760 770 780
GCILYYMTYG KTPFQQIINQ ISKLHAIIDP NHEIEFPDIP EKDLQDVLKC CLKRDPKQRI
790 800 810 820 830 840
SIPELLAHPY VQIQTHPVNQ MAKGTTEEMK YVLGQLVGLN SPNSILKAAK TLYEHYSGGE
850
SHNSSSSKTF EKKRGKK
3D Structures in PDB
4B94 (X-Ray,2.20 Å resolution)
Comments
Mps1 is a serine/threonine kinase that performs multiple functions in the cell cycle. Mps1 dominantly resides in the cytoplasm and relocates into the nucleus at the G2/M boundary. Upon completion of mitosis, Mps1 gradually exits the nucleus. Jia et al. proposed that this process occurs through the CRM1 export pathway. They showed that the relocation of Mps1 to the cytoplasm is LMB sensitive and Mps1 interacts with CRM1 in an in vitro pull-down assay. They identified amino acids 180-189 as a putative NES motif. This motif is capable of directing EFGP out of the nucleus and mutation of the last two Leucines will disrupt nuclear export of Mps1. Interestingly, simultaneous mutation of I182, L184, L187, and L189 will affect nuclear import of Mps1. This mutation may alter the conformation of the adjacent TPR domain, which is important for nuclear import of Mps1.
References
[1]. "A putative N-terminal nuclear export sequence is sufficient for Mps1 nuclear exclusion during interphase"
Jia H, Zhang X, Wang W, Bai Y, Ling Y, Cao C, Ma RZ, Zhong H, Wang X, Xu Q (2015) BMC Cell Biol., 16:1-8 PubMed
User Input
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