Summary for Pdcd4 (NES ID: 349)

Full Name
Programmed cell death protein 4     UniProt    
Alternative Names
Neoplastic transformation inhibitor protein (TIP), Nuclear antigen H731-like (H731), Protein 197/15a, DUG, MA-3   
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L243A/L244A/L247A/L250A/L252A, L188A/L191A/L193A Ref.2The transformation suppressor protein Pdcd4 shuttles between nucleus and cytoplasm and binds RNA, Bohm et al., Oncogene, 2003
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
243LLKDLPELALD253, 184VAEMLRDLNLG194 Ref.2The transformation suppressor protein Pdcd4 shuttles between nucleus and cytoplasm and binds RNA, Bohm et al., Oncogene, 2003
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
MDVENEQILN VNPADPDNLS DSLFSGDEEN AGTEEIKNEI NGNWISASSI NEARINAKAK
70 80 90 100 110 120
RRLRKNSSRD SGRGDSVSDS GSDALRSGLT VPTSPKGRLL DRRSRSGKGR GLPKKGGAGG
130 140 150 160 170 180
KGVWGTPGQV YDVEEVDVKD PNYDDDQENC VYETVVLPLD ERAFEKTLTP IIQEYFEHGD
190 200 210 220 230 240
TNEVAEMLRD LNLGEMKSGV PVLAVSLALE GKASHREMTS KLLSDLCGTV MSTTDVEKSF
250 260 270 280 290 300
DKLLKDLPEL ALDTPRAPQL VGQFIARAVG DGILCNTYID SYKGTVDCVQ ARAALDKATV
310 320 330 340 350 360
LLSMSKGGKR KDSVWGSGGG QQSVNHLVKE IDMLLKEYLL SGDISEAEHC LKELEVPHFH
370 380 390 400 410 420
HELVYEAIIM VLESTGESTF KMILDLLKSL WKSSTITVDQ MKRGYERIYN EIPDINLDVP
430 440 450 460
HSYSVLERFV EECFQAGIIS KQLRDLCPSR GRKRFVSEGD GGRLKPESY
3D Structures in PDB
3EUJ (X-Ray,2.8 Å resolution)
Comments
Pdcd4 role in apoptosis and is found in predominantly in the cytosol in normal conditions. Böhm et al. found that Pdcd4 exits the nucleus upon serum withdrawal, which can be inhibited by LMB. 2 NESs was identified, both are active as GST-fusion proteins in peptide level. It should be noted that the sequence presented on the paper is slightly different from the one retrieved from uniport (NES1: LLKDLPDLVLD and NES2: VSEMLKDLNLG). Both NESs are within folded helical domain of Pdcd4 and is likely inaccessible to CRM1 in full-length protein context, thus, under normal conditions, the protein is predominantly cytosolic. Takaki and Eto reported that Pdcd4 is rapidly degraded upon pharmacological activation of apoptosis with nuclear Pdcd4 disappearing before cytosolic Pdcd4, where LMB treatment causes rescues disappearance of nuclear Pdcd4, also suggesting nuclear exit dependent on CRM1. Ref.1Prolyl Isomerase Pin1 Regulates Cadmium-Induced Autophagy via Ubiquitin-Mediated Post-Translational Stabilization of phospho-Ser GSK3alphabeta in Human Hepatocellular Carcinoma Cells, Takaki et al., Mol Cell Biochem, 2018 Ref.2The transformation suppressor protein Pdcd4 shuttles between nucleus and cytoplasm and binds RNA, Bohm et al., Oncogene, 2003
References
[1]. "Prolyl Isomerase Pin1 Regulates Cadmium-Induced Autophagy via Ubiquitin-Mediated Post-Translational Stabilization of phospho-Ser GSK3alphabeta in Human Hepatocellular Carcinoma Cells"
Takaki S, Eto K. (2018) Mol Cell Biochem, 448(1-2):155-164 PubMed
[2]. "The transformation suppressor protein Pdcd4 shuttles between nucleus and cytoplasm and binds RNA"
Böhm M, Sawicka K, Siebrasse JP, Brehmer-Fastnacht A, Peters R, Klempnauer KH. (2003) Oncogene, 22(31):4905-10 PubMed
User Input
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