Summary for SH2-Bβ (NES ID: 167)

Full Name
SH2B adapter protein 1 isoform β, Src homology 2 Bβ     UniProt    
Alternative Names
FceRI gamma-chain-interacting protein SH2-B, SH2 domain-containing protein 1B, SH2-B PH domain-containing signaling mediator 1   
Organism
Rattus norvegicus (Rat)    
Experimental Evidence for CRM1-mediated Export
LMB Sensitive Ref.1Adapter Protein SH2-B Undergoes Nucleocytoplasmic Shuttling: Implications for Nerve Growth Factor Induction of Neuronal Differentiation, Chen et al., Mol Cell Biol, 2004
Mutations That Affect Nuclear Export
*highlighted yellow in the full sequence
L231A/L233A, 198SNSNSSGGAGTVGRALANDGTSPGERWTHRFERLRLSRGGGTLRDGAGVIQREELLSFMG
AEEAAPDPAGV268 by Deletion Ref.1Adapter Protein SH2-B Undergoes Nucleocytoplasmic Shuttling: Implications for Nerve Growth Factor Induction of Neuronal Differentiation, Chen et al., Mol Cell Biol, 2004
Mutations That Affect CRM1 Binding
Unknown
Functional Export Signals
Undetermined
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 
MNGAPSPEDG VFPSPPALPP PPPPSWQEFC ESHARAAALD LARRFRLYLA SHPQYAEPGA 

        70         80         90        100        110        120 
EAAFSGRFAE LFLQHFEAEV ARASGSLSPP VLAPLSPGVE IPPSHDLSLE SCRVGGPLAV 

       130        140        150        160        170        180 
LGPSRSSEDL AGPLPSSVSS STTSSKPKLK KRFSLRSVGR SVRGSVRGIL QWRGAVESPS 

       190        200        210        220        230        240 
QAGPLETTSG PPVLGGNSNS NSSGGAGTVG RALANDGTSP GERWTHRFER LRLSRGGGTL 

       250        260        270        280        290        300 
RDGAGVIQRE ELLSFMGAEE AAPDPAGVGR GGGAAGLTSG GGGQPQWQKC RLLLRSEGEG 

       310        320        330        340        350        360 
GGGSRLEFFV PPKASRPRLS IPCSTITDVR TATALEMPDR ENTFVVKVEG PSEYILETTD 

       370        380        390        400        410        420 
ALHVKAWVSD IQECLSPGPC PAISPRPMTL PLAPGTSFLT KDNTESLELP CLNHSESLPS 

       430        440        450        460        470        480 
QDLLLGPSES NDRLSQGAYG GLSDRPSASF SPSSASIAAS HFDSMELLPP ELPPRIPIEE 

       490        500        510        520        530        540 
GPPAGTVHPL STPYPPLDTP EAATGSFLFQ GEAEGGEGDQ PLSGYPWFHG MLSRLKAAQL 

       550        560        570        580        590        600 
VLEGGTSSHG VFLVRQSETR RGEYVLTFNF QGKAKHLRLS LNEEGQCRVQ HLWFQSIFDM 

       610        620        630        640        650        660 
LEHFRVHPIP LESGGSSDVV LVSYVPSQRQ QGREQAGSHA GVCEGDRCYP DASSTFLPFG 

       670                                                        
ASDCVTEHFP
3D Structures in PDB
Not Available
Comments
Src homology 2 B (SH2-B) isoform β is an adapter protein essential for NGF-induced neurite outgrowth in PC12 cells. NGF enhances the association of SH2-B with TRKA and the tyrosine phosphorylation of SH2-B. The first 269 amino acids of SH2-Bβ are required its function for neurite growth. Deletion or mutation of the nuclear export signal abolished the ability of SH2-Bβ to enhance NGF-induced neurite outgrowth of PC12 cells suggest that cytoplasmic localization of SH2-B is required for this stimulatory effect. Putative NES of GERWTHRFERLRLSR, which is conserved in all isoforms of SH2-B, was listed in the discussion, although it was not experimentally proven to be sufficient.
References
[1]. "Adapter Protein SH2-B Undergoes Nucleocytoplasmic Shuttling: Implications for Nerve Growth Factor Induction of Neuronal Differentiation"
Chen L, Carter-Su C. (2004) Mol Cell Biol, 24:3633-47 PubMed
User Input
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