Summary for MEX3C (NES ID: 279)

Full Name
RNA-binding E3 ubiquitin-protein ligase MEX3C     UniProt    
Alternative Names
RING finger and KH domain-containing protein 2, RING finger protein 194, RING-type E3 ubiquitin transferase MEX3C   
Organism
Homo sapiens (Human)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1Oocyte-Specific Expression of Mouse MEX3C652AA in the Ovary and Its Potential Role in Regulating Maternal Fos mRNA, Li et al., Biol Reprod, 2016
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L52A/L55A/L57A Ref.1Oocyte-Specific Expression of Mouse MEX3C652AA in the Ovary and Its Potential Role in Regulating Maternal Fos mRNA, Li et al., Biol Reprod, 2016
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
48LRERLAALGLDD59 Ref.1Oocyte-Specific Expression of Mouse MEX3C652AA in the Ovary and Its Potential Role in Regulating Maternal Fos mRNA, Li et al., Biol Reprod, 2016
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 
MPSGSSAALA LAAAPAPLPQ PPPPPPPPPP PLPPPSGGPE LEGDGLLLRE RLAALGLDDP 

        70         80         90        100        110        120 
SPAEPGAPAL RAPAAAAQGQ ARRAAELSPE ERAPPGRPGA PEAAELELEE DEEEGEEAEL 

       130        140        150        160        170        180 
DGDLLEEEEL EEAEEEDRSS LLLLSPPAAT ASQTQQIPGG SLGSVLLPAA RFDAREAAAA 

       190        200        210        220        230        240 
AAAAGVLYGG DDAQGMMAAM LSHAYGPGGC GAAAAALNGE QAALLRRKSV NTTECVPVPS 

       250        260        270        280        290        300 
SEHVAEIVGR QGCKIKALRA KTNTYIKTPV RGEEPIFVVT GRKEDVAMAK REILSAAEHF 

       310        320        330        340        350        360 
SMIRASRNKN GPALGGLSCS PNLPGQTTVQ VRVPYRVVGL VVGPKGATIK RIQQQTHTYI 

       370        380        390        400        410        420 
VTPSRDKEPV FEVTGMPENV DRAREEIEMH IAMRTGNYIE LNEENDFHYN GTDVSFEGGT 

       430        440        450        460        470        480 
LGSAWLSSNP VPPSRARMIS NYRNDSSSSL GSGSTDSYFG SNRLADFSPT SPFSTGNFWF 

       490        500        510        520        530        540 
GDTLPSVGSE DLAVDSPAFD SLPTSAQTIW TPFEPVNPLS GFGSDPSGNM KTQRRGSQPS 

       550        560        570        580        590        600 
TPRLSPTFPE SIEHPLARRV RSDPPSTGNH VGLPIYIPAF SNGTNSYSSS NGGSTSSSPP 

       610        620        630        640        650            
ESRRKHDCVI CFENEVIAAL VPCGHNLFCM ECANKICEKR TPSCPVCQTA VTQAIQIHS
3D Structures in PDB
5WWW (X-Ray,1.8 Å resolution)
5WWX (X-Ray,2.0 Å resolution)
5ZI6 (X-Ray,2.2 Å resolution)
Comments
MEX3C is a member of the RNA-binding protein family with four highly homologous members (MEX3A-D) and contains a C-terminal RING finger domain. Li et al. showed that the longest isofrom of MEX3C (659AA) appears to have a putative NES in 48-59 which matches traditional NES consensus. Introduction of 48-59 from this isoform to a shorter one lacking the first 195 residues enabled LMB-sensitive nuclear export and enrichment of poly(A)+ RNA. MEX3C may be a RNA adaptor for CRM1 RNA export and FOS may be one of those targets.
References
[1]. "Oocyte-Specific Expression of Mouse MEX3C652AA in the Ovary and Its Potential Role in Regulating Maternal Fos mRNA"
Li X, Li Y, Liu C, Jin M, Lu B. (2016) Biol Reprod, 94(5):115 PubMed
User Input
Accurate identification of NESs is difficult because many sequences in the genome match the NES consensus. Therefore, some published NESs may be mistakenly identified. Please help us improve the accuracy of NESdb by providing either a positive or negative flag for the NES in this entry. Supporting comments are required to process the flag.

Supporting comments *

Flag this NES *

Positive
Negative

E-mail: