Rabbit Tie2 Polyclonal Antibody | anti-Tie2 antibody

Tie2 Antibody

Cat. Num. AAA9611136

• Gene Names: TEK; TIE2; VMCM; GLC3E; TIE-2; VMCM1; CD202B
• Reactivity: Human, Mouse; Predicted: Pig, Zebrafish, Bovine, Horse, Sheep, Rabbit, Chicken, Xenopus
• Applications: Western Blot, ELISA
• Purity: The antiserum was purified by peptide affinity chromatography using SulfoLink Coupling Resin (Thermo Fisher Scientific).
• Synonyms: Tie2; Polyclonal Antibody; Tie2 Antibody; Angiopoietin 1 receptor; Angiopoietin-1 receptor; CD202b; CD202b antigen; Endothelial tyrosine kinase; Endothelium specific receptor tyrosine kinase 2; hTIE 2; hTIE2; Hyk; p140 TEK; Soluble TIE2 variant 1; Soluble TIE2 variant 2; Tek; tek tyrosine kinase; TEK tyrosine kinase endothelial; endothelial; TIE 2; TIE2; TIE2_HUMAN; Tunica interna endothelial cell kinase; Tyrosine kinase with Ig and EGF homology domains 2; Tyrosine kinase with Ig and EGF homology domains-2; Tyrosine protein kinase receptor TEK; Tyrosine protein kinase receptor TIE 2; Tyrosine-protein kinase receptor TEK; Tyrosine-protein kinase receptor TIE-2; Venous malformations multiple cutaneous and mucosal; VMCM 1; VMCM; VMCM1; anti-Tie2 antibody

• Host: Rabbit
• Reactivity: Human, Mouse; Predicted: Pig, Zebrafish, Bovine, Horse, Sheep, Rabbit, Chicken, Xenopus
• Clonality: Polyclonal
• Isotype: IgG
• Specificity: Tie2 Antibody detects endogenous levels of Tie2.
• Purity/Purification: The antiserum was purified by peptide affinity chromatography using SulfoLink Coupling Resin (Thermo Fisher Scientific).
• Form/Format: Liquid; Phosphate buffered saline, pH 7.4, 150mM NaCl, 0.02% sodium azide and 50% glycerol.
• Concentration: 1mg/ml (varies by lot)
• Sequence Length: 1124

• Applicable Applications for anti-Tie2 antibody: Western Blot (WB), Peptide ELISA (EIA)
• Application Notes: WB: 1:500-1:2000; ELISA (Peptide): 1:20000-1:40000
• Immunogen: A synthesized peptide derived from human Tie2.
• Tissue Specificity: Detected in umbilical vein endothelial cells. Proteolytic processing gives rise to a soluble extracellular domain that is detected in blood plasma (at protein level). Predominantly expressed in endothelial cells and their progenitors, the angioblasts. Has been directly found in placenta and lung, with a lower level in umbilical vein endothelial cells, brain and kidney.
• Subcellular Location: Cytoskeleton; Extracellular Region or Secreted; Plasma Membrane
• Preparation and Storage: Store at -20 degree C. Stable for 12 months from date of receipt.

Western Blot (WB)

(Western blot analysis of Tie2 in lysates of NIH-3T3, using Tie2 Antibody.)

Related Product Information for anti-Tie2 antibody

Description: Tyrosine-protein kinase that acts as cell-surface receptor for ANGPT1, ANGPT2 and ANGPT4 and regulates angiogenesis, endothelial cell survival, proliferation, migration, adhesion and cell spreading, reorganization of the actin cytoskeleton, but also maintenance of vascular quiescence. Has anti-inflammatory effects by preventing the leakage of proinflammatory plasma proteins and leukocytes from blood vessels. Required for normal angiogenesis and heart development during embryogenesis. Required for post-natal hematopoiesis. After birth, activates or inhibits angiogenesis, depending on the context. Inhibits angiogenesis and promotes vascular stability in quiescent vessels, where endothelial cells have tight contacts. In quiescent vessels, ANGPT1 oligomers recruit TEK to cell-cell contacts, forming complexes with TEK molecules from adjoining cells, and this leads to preferential activation of phosphatidylinositol 3-kinase and the AKT1 signaling cascades. In migrating endothelial cells that lack cell-cell adhesions, ANGT1 recruits TEK to contacts with the extracellular matrix, leading to the formation of focal adhesion complexes, activation of PTK2/FAK and of the downstream kinases MAPK1/ERK2 and MAPK3/ERK1, and ultimately to the stimulation of sprouting angiogenesis. ANGPT1 signaling triggers receptor dimerization and autophosphorylation at specific tyrosine residues that then serve as binding sites for scaffold proteins and effectors. Signaling is modulated by ANGPT2 that has lower affinity for TEK, can promote TEK autophosphorylation in the absence of ANGPT1, but inhibits ANGPT1-mediated signaling by competing for the same binding site. Signaling is also modulated by formation of heterodimers with TIE1, and by proteolytic processing that gives rise to a soluble TEK extracellular domain. The soluble extracellular domain modulates signaling by functioning as decoy receptor for angiopoietins. TEK phosphorylates DOK2, GRB7, GRB14, PIK3R1; SHC1 and TIE1.

Post Translational Modifications: Proteolytic processing leads to the shedding of the extracellular domain (soluble TIE-2 alias sTIE-2). Autophosphorylated on tyrosine residues in response to ligand binding. Autophosphorylation occurs in trans, i.e. one subunit of the dimeric receptor phosphorylates tyrosine residues on the other subunit. Autophosphorylation occurs in a sequential manner, where Tyr-992 in the kinase activation loop is phosphorylated first, followed by autophosphorylation at Tyr-1108 and at additional tyrosine residues. ANGPT1-induced phosphorylation is impaired during hypoxia, due to increased expression of ANGPT2. Phosphorylation is important for interaction with GRB14, PIK3R1 and PTPN11. Phosphorylation at Tyr-1102 is important for interaction with SHC1, GRB2 and GRB7. Phosphorylation at Tyr-1108 is important for interaction with DOK2 and for coupling to downstream signal transduction pathways in endothelial cells. Dephosphorylated by PTPRB. Ubiquitinated. The phosphorylated receptor is ubiquitinated and internalized, leading to its degradation.

Subunit Structure: Homodimer. Heterodimer with TIE1. Interacts with ANGPT1, ANGPT2 and ANGPT4. At cell-cell contacts in quiescent cells, forms a signaling complex composed of ANGPT1 plus TEK molecules from two adjoining cells. In the absence of endothelial cell-cell contacts, interaction with ANGPT1 mediates contacts with the extracellular matrix. Interacts with PTPRB; this promotes endothelial cell-cell adhesion. Interacts with DOK2, GRB2, GRB7, GRB14, PIK3R1 and PTPN11/SHP2. Colocalizes with DOK2 at contacts with the extracellular matrix in migrating cells. Interacts (tyrosine phosphorylated) with TNIP2. Interacts (tyrosine phosphorylated) with SHC1 (via SH2 domain).

Similarity: The soluble extracellular domain is functionally active in angiopoietin binding and can modulate the activity of the membrane-bound form by competing for angiopoietins. Belongs to the protein kinase superfamily. Tyr protein kinase family. Tie subfamily.

NCBI and Uniprot Product Information

• NCBI GI #: 88758596
• NCBI GeneID: 7010
• NCBI Accession #: NP_000450.2
• NCBI GenBank Nucleotide #: NP_000450.2
• UniProt Accession #: Q02763
• Molecular Weight: Observed: 126KD; Predicted: 126 kDa
• NCBI Official Full Name: angiopoietin-1 receptor isoform 1
• NCBI Official Synonym Full Names: TEK receptor tyrosine kinase
• NCBI Official Symbol: TEK
• NCBI Official Synonym Symbols: TIE2; VMCM; GLC3E; TIE-2; VMCM1; CD202B
• NCBI Protein Information: angiopoietin-1 receptor
• UniProt Protein Name: Angiopoietin-1 receptor
• Protein Family: Tyrosine-protein kinase receptor
• UniProt Gene Name: TEK
• UniProt Synonym Gene Names: TIE2; VMCM; VMCM1; hTIE2
• UniProt Entry Name: TIE2_HUMAN

NCBI Description

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. Mutations in this gene are associated with inherited venous malformations of the skin and mucous membranes. Alternative splicing results in multiple transcript variants. Additional alternatively spliced transcript variants of this gene have been described, but their full-length nature is not known. [provided by RefSeq, Feb 2014]

Uniprot Description

TIE2: a receptor tyrosine kinase of the Tie family. Receptor for angiopoietin 1. Expressed almost exclusively in endothelial cells. May constitute the earliest mammalian endothelial cell lineage marker. Appears to be critical for endothelial cell-smooth muscle cell communication in venous morphogenesis. TEK is closely related to the TIE receptor tyrosine kinase.

Protein type: Membrane protein, integral; EC 2.7.10.1; Kinase, protein; Protein kinase, TK; Protein kinase, tyrosine (receptor); TK group; Tie family

Chromosomal Location of Human Ortholog: 9p21

Cellular Component: microvillus; cell surface; focal adhesion; basolateral plasma membrane; integral to plasma membrane; extracellular region; actin filament; intercellular junction; lipid raft; perinuclear region of cytoplasm; apical plasma membrane; plasma membrane; stress fiber; basal plasma membrane

Molecular Function: protein binding; growth factor binding; protein-tyrosine kinase activity; receptor activity; transmembrane receptor protein tyrosine kinase activity; ATP binding; protein kinase activity

Biological Process: response to peptide hormone stimulus; peptidyl-tyrosine phosphorylation; response to cAMP; cell-matrix adhesion; heart development; protein amino acid autophosphorylation; positive regulation of cytokine secretion during immune response; signal transduction; cell-cell adhesion; cell-cell signaling; positive regulation of focal adhesion formation; angiogenesis; endochondral ossification; Tie receptor signaling pathway; organ regeneration; regulation of establishment and/or maintenance of cell polarity; positive regulation of phosphoinositide 3-kinase activity; positive regulation of peptidyl-serine phosphorylation; protein oligomerization; positive regulation of phosphoinositide 3-kinase cascade; positive regulation of protein kinase B signaling cascade; negative regulation of angiogenesis; positive regulation of angiogenesis; positive regulation of protein import into nucleus; response to estrogen stimulus; negative regulation of inflammatory response; endothelial cell proliferation; response to hypoxia; positive regulation of endothelial cell proliferation; regulation of vascular permeability; sprouting angiogenesis; positive regulation of protein amino acid phosphorylation; blood coagulation; leukocyte migration; transmembrane receptor protein tyrosine kinase signaling pathway; negative regulation of apoptosis

Disease: Venous Malformations, Multiple Cutaneous And Mucosal