Specification
| Description | Recombinant protein from the full-length sequence of Homo sapiens SH2B adaptor protein 1 (SH2B1), transcript variant 1 (NM_001145795). |
| Organism | Homo sapiens (Human) |
| Expression Host | Human Cells |
| Tag Info | His or DYKDDDDK. Please contact us if you need further information or require specific designed tag. |
| Purity | Greater than 90% by SDS-PAGE gel |
| Uniprot ID | Q9NRF2 |
| Entry Name | SH2B1_HUMAN |
| Gene Names | SH2B1 KIAA1299 SH2B |
| Alternative Gene Names | KIAA1299 SH2B |
| Alternative Protein Names | SH2B adapter protein 1 (Pro-rich, PH and SH2 domain-containing signaling mediator) (PSM) (SH2 domain-containing protein 1B) |
| Application | Antigens, Western, ELISA and other in vitro binding or in vivo functional assays, and protein-protein interaction studies; For research & development use only! |
| Buffer | Purified protein formulated in a sterile solution of PBS buffer, pH7.2, without any preservatives |
| Endotoxin | Endotoxin level is < 0.1 ng/µg of protein (<1EU /µg) |
| Length | 756 |
| Molecular Weight(Da) | 79366 |
| Protein Sequence | (The sequence of expressed protein may have some variation from the sequence shown below. Please contact us for the exact sequence.) MNGAPSPEDGASPSSPPLPPPPPPSWREFCESHARAAALDFARRFRLYLASHPQYAGPGAEAAFSRRFAELFLQHFEAEVARASGSLSPPILAPLSPGAEISPHDLSLESCRVGGPLAVLGPSRSSEDLAGPLPSSVSSSSTTSSKPKLKKRFSLRSVGRSVRGSVRGILQWRGTVDPPSSAGPLETSSGPPVLGGNSNSNSSGGAGTVGRGLVSDGTSPGERWTHRFERLRLSRGGGALKDGAGMVQREELLSFMGAEEAAPDPAGVGRGGGVAGPPSGGGGQPQWQKCRLLLRSEGEGGGGSRLEFFVPPKASRPRLSIPCSSITDVRTTTALEMPDRENTFVVKVEGPSEYIMETVDAQHVKAWVSDIQECLSPGPCPATSPRPMTLPLAPGTSFLTRENTDSLELSCLNHSESLPSQDLLLGPSESNDRLSQGAYGGLSDRPSASISPSSASIAASHFDSMELLPPELPPRIPIEEGPPTGTVHPLSAPYPPLDTPETATGSFLFQGEPEGGEGDQPLSGYPWFHGMLSRLKAAQLVLTGGTGSHGVFLVRQSETRRGEYVLTFNFQGKAKHLRLSLNEEGQCRVQHLWFQSIFDMLEHFRVHPIPLESGGSSDVVLVSYVPSSQRQQEPTTSHDPPQPPEPPSWTDPPQPGAEEASRAPEVAAAAAAAAKERQEKEKAGGGGVPEELVPVVELVPVVELEEAIAPGSEAQGAGSGGDAGVPPMVQLQQSPLGGDGEEGGHPRAINNQYSFV |
Background
| Function | FUNCTION: Adapter protein for several members of the tyrosine kinase receptor family. Involved in multiple signaling pathways mediated by Janus kinase (JAK) and receptor tyrosine kinases, including the receptors of insulin (INS), insulin-like growth factor I (IGF1), nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), glial cell line-derived neurotrophic factor (GDNF), platelet-derived growth factor (PDGF) and fibroblast growth factors (FGFs). In growth hormone (GH) signaling, autophosphorylated ('Tyr-813') JAK2 recruits SH2B1, which in turn is phosphorylated by JAK2 on tyrosine residues. These phosphotyrosines form potential binding sites for other signaling proteins. GH also promotes serine/threonine phosphorylation of SH2B1 and these phosphorylated residues may serve to recruit other proteins to the GHR-JAK2-SH2B1 complexes, such as RAC1. In leptin (LEP) signaling, binds to and potentiates the activation of JAK2 by globally enhancing downstream pathways. In response to leptin, binds simultaneously to both, JAK2 and IRS1 or IRS2, thus mediating formation of a complex of JAK2, SH2B1 and IRS1 or IRS2. Mediates tyrosine phosphorylation of IRS1 and IRS2, resulting in activation of the PI 3-kinase pathway. Acts as positive regulator of NGF-mediated activation of the Akt/Forkhead pathway; prolongs NGF-induced phosphorylation of AKT1 on 'Ser-473' and AKT1 enzymatic activity. Enhances the kinase activity of the cytokine receptor-associated tyrosine kinase JAK2 and of other receptor tyrosine kinases, such as FGFR3 and NTRK1. For JAK2, the mechanism seems to involve dimerization of both, SH2B1 and JAK2. Enhances RET phosphorylation and kinase activity. Isoforms seem to be differentially involved in IGF-I and PDGF-induced mitogenesis (By similarity). {ECO:0000250, ECO:0000269|PubMed:11827956, ECO:0000269|PubMed:14565960, ECO:0000269|PubMed:15767667, ECO:0000269|PubMed:16569669, ECO:0000269|PubMed:17471236, ECO:0000269|PubMed:9694882, ECO:0000269|PubMed:9742218}. |
| Pathway | |
| Protein Families | SH2B adapter family |
| Tissue Specificity | Widely expressed with highest levels in skeletal muscle and ovary. {ECO:0000269|PubMed:15767667}. |
QC Data
| Note | Please contact us for QC Data |
| Product Image (Reference Only) |  |