Summary for MTF-1 (NES ID: 28)

Full Name
Metal regulatory transcription factor 1     UniProt    
Alternative Names
Transcription factor MTF-1 MRE-binding transcription factor   
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
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
MGEHSPDNNI IYFEAEEDEL TPDDKMLRFV DKNGLVPSSS GTVYDRTTVL IEQDPGTLED
70 80 90 100 110 120
EDDDGQCGEH LPFLVGGEEG FHLIDHEAMS QGYVQHIISP DQIHLTINPG STPMPRNIEG
130 140 150 160 170 180
ATLTLQSECP ETKRKEVKRY QCTFEGCPRT YSTAGNLRTH QKTHRGEYTF VCNQEGCGKA
190 200 210 220 230 240
FLTSYSLRIH VRVHTKEKPF ECDVQGCEKA FNTLYRLKAH QRLHTGKTFN CESEGCSKYF
250 260 270 280 290 300
TTLSDLRKHI RTHTGEKPFR CDHDGCGKAF AASHHLKTHV RTHTGERPFF CPSNGCEKTF
310 320 330 340 350 360
STQYSLKSHM KGHDNKGHSY NALPQHNGSE DTNHSLCLSD LSLLSTDSEL RENSSTTQGQ
370 380 390 400 410 420
DLSTISPAII FESMFQNSDD TAIQEDPQQT ASLTESFNGD AESVSDVPPS TGNSASLSLP
430 440 450 460 470 480
LVLQPGLSEP PQPLLPASAP SAPPPAPSLG PGSQQAAFGN PPALLQPPEV PVPHSTQFAA
490 500 510 520 530 540
NHQEFLPHPQ APQPIVPGLS VVAGASASAA AVASAVAAPA PPQSTTEPLP AMVQTLPLGA
550 560 570 580 590 600
NSVLTNNPTI TITPTPNTAI LQSSLVMGEQ NLQWILNGAT SSPQNQEQIQ QASKVEKVFF
610 620 630 640 650 660
TTAVPVASSP GSSVQQIGLS VPVIIIKQEE ACQCQCACRD SAKERASSRR KGCSSPPPPE
670 680 690 700 710 720
PSPQAPDGPS LQLPAQTFSS APVPGSSSST LPSSCEQSRQ AETPSDPQTE TLSAMDVSEF
730 740 750
LSLQSLDTPS NLIPIEALLQ GEEEMGLTSS FSK
3D Structures in PDB
Not Available
Comments
MTF-1 is a zinc finger transcription factor that activates the transcription of metallothioneins (MT) in response to heavy metal exposure via binding to MRE in the promotor regions of MT. Saydam et al. identified aa 133-139 as a classical NLS sequence in MTF-1. Mutations of 133-135 abolished the nuclear translocation. But this NLS is not transferable. Furthermore, they found that MTF-1 has a functional NES (aa 336-344), which can carry eGFP-GFP out of nucleus. The export is blocked by LMB. Simultaneous mutations of 338/341/343/344 to alanines resulted in nuclear localization of MTF-1. However, the alignment they did for NES with other NESs aligned L336, L338, L341, and L343 with other NESs.
References
[1]. "Nucleo-cytoplasmic trafficking of metal-regulatory transcription factor 1 is regulated by diverse stress signals"
Saydam, N., Georgiev, O., Nakano, M.Y., Greber, U.F., Schaffner, W.. (2001) J Biol Chem, 276:25487-25495 PubMed
User Input
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