|Detection of Mouse Phospho-Tie‑2 (Y1102/Y1100) by Western Blot. Western blot shows lysates of NIH‑3T3 mouse embryonic fibroblast cell line transfected with mouse Tie-2 untreated (-) or treated (+) with 600 ng/mL Recombinant Human Angiopoietin‑1 (Catalog # 923-AN) for 5 minutes. PVDF membrane was probed with 1 µg/mL of Rabbit Anti-Human/Mouse Phospho-Tie‑2 (Y1102/Y1100) Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3909) followed by HRP-conjugated Anti-Rabbit IgG Secondary Antibody (Catalog # HAF008). A specific band was detected for Phospho-Tie‑2 (Y1102/1100) at approximately 150 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.|
|Tie‑2 in Human Placenta. Tie‑2 phosphorylated at Y1102 was detected in immersion fixed paraffin-embedded sections of human placenta using Rabbit Anti-Human/Mouse Phospho-Tie‑2 (Y1102/Y1100) Antigen Affinity-purified Polyclonal Antibody (Catalog # AF3909) at 15 µg/mL overnight at 4 °C. Tissue was stained using the Anti-Rabbit HRP-DAB Cell & Tissue Staining Kit (brown; Catalog # CTS005) and counterstained with hematoxylin (blue). Lower panel shows a lack of labeling if primary antibodies are omitted and tissue is stained only with secondary antibody followed by incubation with detection reagents. View our protocol for Chromogenic IHC Staining of Paraffin-embedded Tissue Sections.|
Tie-2 (also known as TEK) is an angiogenic receptor tyrosine kinase required for the later stage of blood vessel maturation. Ligand binding induces receptor dimerization and autophosphorylation on multiple tyrosine residues. Phosphorylation of human Tie-2 at Y1102 and mouse Tie-2 at Y1100 results in the activation of PI 3‑kinase (1, 2).
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