Phospho-EphA2 (Ser897) (D9A1) Rabbit mAb (BSA and Azide Free) #16662

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Supporting Data

REACTIVITY	H M
SENSITIVITY	Endogenous
MW (kDa)	125
Source/Isotype	Rabbit IgG

Application Key:

WB-Western Blotting
IHC-Immunohistochemistry

Species Cross-Reactivity Key:

H-Human
M-Mouse

Product Information

Product Usage Information

This product is the carrier free version of product #6347. All data were generated using the same antibody clone in the standard formulation which contains BSA and glycerol.

This formulation is ideal for use with technologies requiring specialized or custom antibody labeling, including fluorophores, metals, lanthanides, and oligonucleotides. It is not recommended for ChIP, ChIP-seq, CUT&RUN or CUT&Tag assays. If you require a carrier free formulation for chromatin profiling, please contact us. Optimal dilutions/concentrations should be determined by the end user.

BSA and Azide Free antibodies are quality control tested by size exclusion chromatography (SEC) to determine antibody integrity.

Formulation

Supplied in 1X PBS (10 mM Na₂HPO₄, 3 mM KCl, 2 mM KH₂PO₄, and 140 mM NaCl (pH 7.8)). BSA and Azide Free.

For standard formulation of this product see product #6347

Storage

Store at -20°C. This product will freeze at -20°C so it is recommended to aliquot into single-use vials to avoid multiple freeze/thaw cycles. A slight precipitate may be present and can be dissolved by gently vortexing. This will not interfere with antibody performance.

Specificity / Sensitivity

Phospho-EphA2 (Ser897) (D9A1) Rabbit mAb (BSA and Azide Free) recognizes endogenous levels of EphA2 protein only when phosphorylated at Ser897.

Species Reactivity:

Human, Mouse

The antigen sequence used to produce this antibody shares 100% sequence homology with the species listed here, but reactivity has not been tested or confirmed to work by CST. Use of this product with these species is not covered under our Product Performance Guarantee.

Species predicted to react based on 100% sequence homology:

Rat

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser897 of human EphA2 protein.

Background

The Eph receptors are the largest known family of receptor tyrosine kinases (RTKs). They can be divided into two groups based on sequence similarity and on their preference for a subset of ligands: EphA receptors bind to a glycosylphosphatidylinositol-anchored ephrin A ligand; EphB receptors bind to ephrin B proteins that have a transmembrane and cytoplasmic domain (1,2). Research studies have shown that Eph receptors and ligands may be involved in many diseases including cancer (3). Both ephrin A and B ligands have dual functions. As RTK ligands, ephrins stimulate the kinase activity of Eph receptors and activate signaling pathways in receptor-expressing cells. The ephrin extracellular domain is sufficient for this function as long as it is clustered (4). The second function of ephrins has been described as "reverse signaling", whereby the cytoplasmic domain becomes tyrosine phosphorylated, allowing interactions with other proteins that may activate signaling pathways in the ligand-expressing cells (5). Various stimuli can induce tyrosine phosphorylation of ephrin B, including binding to EphB receptors, activation of Src kinase, and stimulation by PDGF and FGF (6). Tyr324 and Tyr327 have been identified as major phosphorylation sites of ephrin B1 in vivo (7).
It has been demonstrated that ligand-independent promotion of cell migration by EphA2 overexpression requires phosphorylation of EphA2 at Ser897 by Akt. On the other hand, stimulation of EphA2 by its ligand Ephrin-A1 negates Akt activation by growth factors and causes EphA2 dephosphorylation at Ser897 (8).

Database Links

UniProt ID: P29317

Entrez-Gene Id: 1969

Limited Uses

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For Research Use Only. Not For Use In Diagnostic Procedures.

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