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Invitrogen
Description: The TEK4 monoclonal antibody reacts with mouse Tie-2, also known as CD202. A member of the tyrosine kinase receptor family, Tie-2 is expressed on endothelial and a subset of hematopoietic cells and is believed to play a role in both angiogenesis and hematopoiesis during development of the mouse embryo. In fetal liver and adult bone marrow, Tie-2 is expressed by a subpopulation of hematopoietic progenitor cells characterized as Lineage markers^-, c-Kit^+, Sca1^+ cells. Long-term multilineage repopulating cells were detected in Tie-2^+, Lineage^-, c-Kit^+, Sca1^+ cells but not in Tie-2^-, Lineage^-, c-Kit^+, Sca1^+ cells.
Applications Reported: The TEK4 antibody has been reported for use in flow cytometric analysis.
Applications Tested: The TEK4 antibody has been tested by flow cytometric analysis of mouse bone marrow cells. This can be used at less than or equal to 2 µg per test. A test is defined as the amount (µg) of antibody that will stain a cell sample in a final volume of 100 µL. Cell number should be determined empirically but can range from 10^5 to 10^8 cells/test. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.
Excitation: 488-561 nm; Emission: 578 nm; Laser: Blue Laser, Green Laser, Yellow-Green Laser.
Filtration: 0.2 µm post-manufacturing filtered.
TIE2, also known as TEK tyrosine kinase, TIE2 gene is mapped to 9p21.2. This gene encodes a receptor that belongs to the protein tyrosine kinase Tie2 family. The encoded protein possesses a unique extracellular region that contains two immunoglobulin-like domains, three epidermal growth factor (EGF)-like domains and three fibronectin type III repeats. The ligand angiopoietin-1 binds to this receptor and mediates a signaling pathway that functions in embryonic vascular development. Immunoblotting showed that TIE2 expression was increased by thyroid-stimulating hormone and agents that increased intracellular cAMP. HSCs expressing the receptor tyrosine kinase TIE2 are quiescent and antiapoptotic and comprise a side population of HSCs that adhere to osteoblasts in the bone marrow niche.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: Angiopoietin-1 receptor; CD202b; CD202b antigen; EC 2.7.10; EC 2.7.10.1; Endothelial tyrosine kinase; HYK; mTIE2; p140 TEK; STK1; TEKT1; Tunica interna endothelial cell kinase; Tyrosine kinase with Ig and EGF homology domains-2; Tyrosine-protein kinase receptor TEK; Tyrosine-protein kinase receptor TIE-2
Gene Aliases: AA517024; Cd202b; Hyk; STK1; Tek; Tie-2; Tie2
UniProt ID: (Mouse) Q02858
Entrez Gene ID: (Mouse) 21687
Molecular Function:
transmembrane signal receptor
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