Rabbit Recombinant Monoclonal GRB2 antibody - conjugated to Alexa Fluor® 555.
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: 68% PBS, 30% Glycerol (glycerin, glycerine), 1% BSA
| Application | Reactivity | Dilution info | Notes |
|---|---|---|---|
Application Target Binding Affinity | Reactivity Expected | Dilution info - | Notes - |
Application Antibody Labelling | Reactivity Expected | Dilution info - | Notes - |
Non-enzymatic adapter protein that plays a pivotal role in precisely regulated signaling cascades from cell surface receptors to cellular responses, including signaling transduction and gene expression (PubMed:11726515, PubMed:37626338). Thus, participates in many biological processes including regulation of innate and adaptive immunity, autophagy, DNA repair or necroptosis (PubMed:35831301, PubMed:37626338, PubMed:38182563). Controls signaling complexes at the T-cell antigen receptor to facilitate the activation, differentiation, and function of T-cells (PubMed:36864087, PubMed:9489702). Mechanistically, engagement of the TCR leads to phosphorylation of the adapter protein LAT, which serves as docking site for GRB2 (PubMed:9489702). In turn, GRB2 establishes a a connection with SOS1 that acts as a guanine nucleotide exchange factor and serves as a critical regulator of KRAS/RAF1 leading to MAPKs translocation to the nucleus and activation (PubMed:12171928, PubMed:25870599). Functions also a role in B-cell activation by amplifying Ca(2+) mobilization and activation of the ERK MAP kinase pathway upon recruitment to the phosphorylated B-cell antigen receptor (BCR) (PubMed:25413232, PubMed:29523808). Plays a role in switching between autophagy and programmed necrosis upstream of EGFR by interacting with components of necrosomes including RIPK1 and with autophagy regulators SQSTM1 and BECN1 (PubMed:35831301, PubMed:38182563). Regulates miRNA biogenesis by forming a functional ternary complex with AGO2 and DICER1 (PubMed:37328606). Functions in the replication stress response by protecting DNA at stalled replication forks from MRE11-mediated degradation. Mechanistically, inhibits RAD51 ATPase activity to stabilize RAD51 on stalled replication forks (PubMed:38459011). Additionally, directly recruits and later releases MRE11 at DNA damage sites during the homology-directed repair (HDR) process (PubMed:34348893). Isoform 2. Does not bind to phosphorylated epidermal growth factor receptor (EGFR) but inhibits EGF-induced transactivation of a RAS-responsive element. Acts as a dominant negative protein over GRB2 and by suppressing proliferative signals, may trigger active programmed cell death. Mechanistically, inhibits RAS-ERK signaling and downstream cell proliferation by competing with GRB2 for SOS1 binding and thus by regulating SOS1 membrane recruitment (PubMed:36171279).
ASH, GRB2, Growth factor receptor-bound protein 2, Adapter protein GRB2, Protein Ash, SH2/SH3 adapter GRB2
Rabbit Recombinant Monoclonal GRB2 antibody - conjugated to Alexa Fluor® 555.
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: 68% PBS, 30% Glycerol (glycerin, glycerine), 1% BSA
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This conjugated primary antibody is released using a quantitative quality control method that evaluates binding affinity post-conjugation and efficiency of antibody labeling.
For suitable applications and species reactivity, please refer to the unconjugated version of this clone. This conjugated antibody is eligible for the Abcam trial program.
Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.
The GRB2 protein also known as growth factor receptor-bound protein 2 is instrumental in signal transduction. GRB2 has a molecular weight of about 25 kDa. It comprises one SH2 domain and two SH3 domains which facilitate its role in linking receptor tyrosine kinases to downstream signaling molecules. GRB2 is ubiquitously expressed in various tissues signifying its importance in diverse cellular functions.
GRB2 functions as an adaptor protein that connects activated receptor tyrosine kinases to intracellular pathways. It often forms complexes with other proteins such as the SOS protein which further propagates signaling cascades critical for cell proliferation and differentiation. GRB2’s ability to mediate these interactions contributes to cellular responses to external stimuli including growth factors and hormones.
GRB2 plays an important role in the Ras-MAPK signaling pathway. It interacts with proteins like SOS and Ras enabling signal transduction from the cell surface to the nucleus which is vital for processes such as cell growth and survival. GRB2 is also implicated in the PI3K-Akt pathway connecting it to another set of signaling proteins that regulate metabolism growth and survival.
GRB2 has significant associations with cancer and immune disorders. Aberrant activation of pathways involving GRB2 can lead to uncontrolled cell proliferation contributing to oncogenesis in different cancers. Additionally GRB2’s interactions with proteins like BCR-ABL in chronic myeloid leukemia highlight its potential role as a therapeutic target. GRB2 inhibitors could therefore offer promising avenues for treating such conditions by disrupting its pathological signaling interactions.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
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