Summary for Arp2/3-1b (NES ID: 353)

Full Name
Actin-related protein 2/3 complex subunit 1B-B     UniProt    
Alternative Names
Arpc1b-b   
Organism
Xenopus laevis (African clawed frog)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive,  Binds CRM1 Ref.1A deep proteomics perspective on CRM1-mediated nuclear export and nucleocytoplasmic partitioning, Kirli et al., eLife, 2015
Mutations That Affect Nuclear Export
Unknown
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
*shown as underlined residues in the full sequence
355DVKSLESALKDLKIK369 Ref.1A deep proteomics perspective on CRM1-mediated nuclear export and nucleocytoplasmic partitioning, Kirli et al., eLife, 2015
Secondary Structure of Export Signal
helix-loop
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 
MAFHSFLLEP ITCHAWNKDA TQIAFCPNSH DVHIYKKDGV KWTKIHELKE HNGQVTGIDW 

        70         80         90        100        110        120 
APESNRIVTC GTDRNAYVWT LRNNVWKPTL VILRINRAAR CVKWSPKENK FAVGSGSRLI 

       130        140        150        160        170        180 
SICYFEQEND WWVCKHIKKP IRSTVLSLDW HPNNVLLAAG SSDFKSRIFS SYIKEVEERP 

       190        200        210        220        230        240 
APTPWGSKMP FGELMFESSS SCGWVHSVCF SNSGDRMAWV SHDSTICIAD ATKKMRVTSL 

       250        260        270        280        290        300 
ITDTLPLLCV TFITENSLVA AGHDCYPVLY TYDEAQGTLS FGGKLDVPKQ SSQRGMTARE 

       310        320        330        340        350        360 
RFQNLDKKAS SDTNNITLDS LHKNSISQIS VLSGGKAKCS KFCTTGLDGG MCIWDVKSLE 

                                                                  
SALKDLKIK
3D Structures in PDB
1K8K (X-Ray,2.0 Å resolution)
Comments
Arp2/3-1b protein is identified in proteomics study by Kirli et al. as a CRM1 binder. It is a component of the Arp2/3 complex which is responsible for regulation of actin polymerization. Export activity is verified as GFP- and GFP-NLS-fusions in an LMB-sensitive manner. Purified protein can bind to mouse CRM1 in RanGTP-dependent manner. Putative NES is identified in the C-terminal tail and tested to be active in GFP-NLS-NES fusion. Structure of xenopus Arp2/3-1b is not available but the NES can be seen in the structure of Bos Taurus Arp2/3 complex as a helix-loop extension which packs against the WD repeat domain. Ref.1A deep proteomics perspective on CRM1-mediated nuclear export and nucleocytoplasmic partitioning, Kirli et al., eLife, 2015
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
User Input
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