SH2B1 (Src-Homology 2 Domain-Containing protein B1/1B; also SH2B1 alpha, PSM and SH2B adaptor protein 1) is a member of the SH2B adapter family of proteins. Although its predicted MW is 80 kDa, it runs anomalously at 90-102 kDa in SDS-Page. SH2B1 is a nucleocytoplasmic protein that is widely expressed in cells such as skeletal muscle cells, neurons, and adipocytes. It serves as a linker between Jak2 and multiple downstream molecules such as Rac and IRS1. It does this following phosphorylation on a number of potential sites. It also promotes the enzymatic activity of associated receptor kinases, thus potentiating ligand-receptor interactions. SH2B1 appears to bind to nonphosphorylated Jaks as a monomer, while Jak phosphorylation induces SH2B1 dimerization. SH2B1 is further reported to form a homopentamer, and to oligomerize with SH2B2. Human SH2B1( alpha ) is 756 amino acids amino acids (aa) in length. It contains one dimerization segment (aa 24-85), an NLS (aa 224-233), one pleckstrin homology region (aa 249-378) and an SH2 domain (aa 521-625). At least three utilized phosphorylation sites exist. There are at least two splice variants for SH2B1. The 90-92 kDa SH2B1 beta isoform shows a 39 aa substitution for aa 633-756, while the SH2B1 gamma isoform possesses a 50 aa substitution for the same aa range (i.e., aa 633-756). Over aa 317-467, human SH2B1 shares 92% aa identity with mouse SH2B1.
Human/Mouse/Rat SH2B1 Antibody
R&D Systems | Catalog # AF6915
Key Product Details
Species Reactivity
Applications
Label
Antibody Source
Product Specifications
Immunogen
Pro317-Leu467
Accession # Q9NRF2
Specificity
Clonality
Host
Isotype
Scientific Data Images for Human/Mouse/Rat SH2B1 Antibody
Detection of Human, Mouse, and Rat SH2B1 by Western Blot.
Western blot shows lysates of LNCaP human prostate cancer cell line, Neuro-2A mouse neuroblastoma cell line, and Rat-2 rat embryonic fibroblast cell line. PVDF membrane was probed with 1 µg/mL of Goat Anti-Human/Mouse/Rat SH2B1 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF6915) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for SH2B1 at approximately 90 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Detection of SH2B1 by Western Blot
Intelligence-related behaviors in mice are dependent on neuronal Sh2b1 expression in the hippocampus. (A) Experimental timeline. (B) Schematics of AAV injections and representative images of GFP expression in injected areas. Scale bar, 200 μm. (C and D) Representative immunoblots (C) and pooled data (D). Sh2b1+/+, n = 5; Sh2b1 delta Ν, n = 6. P = 0.0149 (*), unpaired Student’s t test. (E) Diagram of the Y-maze test. (F to H) Error entries (F), total entries (G), and error rate (%, H). Sh2b1+/+, n = 20; Sh2b1 delta Ν, n = 32. P = 0.0037 (**), 0.2535, and 0.015 (**), for (F), (G), and (H), Sh2b1+/+ versus Sh2b1 delta Ν, unpaired Student’s t test. (I) Diagrams for novel object recognition test. (J to L) Novel object recognition test. Sh2b1+/+, n = 20; Sh2b1 delta Ν, n = 32. (J) Left: Sh2b1+/+, P = 1.0E−4 (***); Right: Sh2b1 delta Ν, P = 0.3014, Familiar versus New, paired Student’s t test. (K and L) P = 0.1114 and 0.0128 (*), for (K) and (L), Sh2b1+/+ versus Sh2b1 delta Ν, unpaired Student’s t test. (M and N) Morris water maze test. (M) Percentage of time spent in the 4 quadrants during the probe trials after learning. (N) Reverse learning curve. Sh2b1+/+, n = 18; Sh2b1 delta Ν, n = 19. Two-way repeated measures ANOVA, main effect of group, F1,35 = 2.577, P = 0.1174. P = 0.0246 (*), 0.3508, 0.2751, and 0.3114, from the first to the fourth day since reverse learning, Sh2b1+/+ versus Sh2b1 delta Ν, unpaired Student’s t test. Image collected and cropped by CiteAb from the following open publication (https://pubmed.ncbi.nlm.nih.gov/38434247), licensed under a CC-BY license. Not internally tested by R&D Systems.Applications for Human/Mouse/Rat SH2B1 Antibody
Western Blot
Sample: LNCaP human prostate cancer cell line, Neuro‑2A mouse neuroblastoma cell line, and Rat‑2 rat embryonic fibroblast cell line
Formulation, Preparation, and Storage
Purification
Reconstitution
Sterile PBS to a final concentration of 0.2 mg/mL. For liquid material, refer to CoA for concentration.
Formulation
Shipping
Stability & Storage
- 12 months from date of receipt, -20 to -70 °C as supplied.
- 1 month, 2 to 8 °C under sterile conditions after reconstitution.
- 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Calculators
Background: SH2B1
Long Name
Alternate Names
Gene Symbol
UniProt
Additional SH2B1 Products
Product Documents for Human/Mouse/Rat SH2B1 Antibody
Certificate of Analysis
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Note: Certificate of Analysis not available for kit components.
Product Specific Notices for Human/Mouse/Rat SH2B1 Antibody
For research use only
Citations for Human/Mouse/Rat SH2B1 Antibody
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Protocols
Find general support by application which include: protocols, troubleshooting, illustrated assays, videos and webinars.
- Cellular Response to Hypoxia Protocols
- R&D Systems Quality Control Western Blot Protocol
- Troubleshooting Guide: Western Blot Figures
- Western Blot Conditions
- Western Blot Protocol
- Western Blot Protocol for Cell Lysates
- Western Blot Troubleshooting
- Western Blot Troubleshooting Guide
- View all Protocols, Troubleshooting, Illustrated assays and Webinars