Human TIE-2, soluble
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| Cat-Nr. | S01-043 |
| Size | 10 µg |
| Price | 110 € |
| Source | Insect cells |
| Label | His-Tag |
| Formulation | lyophilized |
| Purity Confirmation | > 95% by SDS-PAGE |
| Length [aa] | 731 |
| Molecular Weight | 95.0 kDa |
| N Terminal Sequence | AMDLILINSL |
| Biological Activity | Measured by its ability to bind to immobilized recombinant Ang-2 in a functional ELISA. |
| Species Reactivity | Human |
| Buffer | PBS |
| Reconstitution | Centrifuge vial prior to opening. The lyophilized sTIE-2-His is soluble in water and most aqueous buffers and should be reconstituted in PBS or medium to a concentration not lower than 50µg/ml. |
| Stability and Storage | Lyophilized samples are stable for greater than six months at -20°C to -70°C. Reconstituted sTIE-2-His should be stored in working aliquots at -20°C. |
| Synonyms | TEK; TIE2; VMCM; TIE-2; VMCM1; CD202B |
| Description | Recombinant human soluble TIE-2/TEK was fused with a 6x His-tag at the C-terminus. The soluble receptor protein consists of the full extracellular domain (Thr19-Lys745). TIE-1 (tyrosine kinase with Ig and EGF homology domains 1) and TIE-2/TEK comprise a receptor tyrosine kinase (RTK) subfamily with unique structural characteristics: two immunoglobulin-like domains flanking three epidermal growth factor (EGF)-like domains and followed by three fibronectin type III-like repeats in the extracellular region and a split tyrosine kinase domain in the cytoplasmic region. These receptors are expressed primarily on endothelial and hematopoietic progenitor cells and play critical roles in angiogenesis, vasculogenesis and hematopoiesis. Human TIE-2 cDNA encodes a 1124 amino acid (aa) residue precursor protein with an 18 residue putative signal peptide, a 727 residue extracellular domain and a 354 residue cytoplasmic domain. Two ligands, angiopoietin-1 (Ang1) and angiopoietin-2 (Ang2), which bind TIE-2 with high affinity have been identified. Ang2 has been reported to act as an antagonist for Ang1. Mice engineered to overexpress Ang2 or to lack Ang1 or TIE-2 display similar angiogenic defects. |
| Protein Sequence | AMDLILINSLPLVSDAETSLTCIASGWRPHEPITIGRDFEALMNQHQDPLEVTQDVTREWAKKVVWKREKASKINGAYFCEGRVRGEAIRIRTMKMRQQASFLPATLTMTVDKGDNVNISFKKVLIKEEDAVIYKNGSFIHSVPRHEVPDILEVHLPHAQPQDAGVYSARYIGGNLFTSAFTRLIVRRCEAQKWGPECNHLCTACMNNGVCHEDTGECICPPGFMGRTCEKACELHTFGRTCKERCSGQEGCKSYVFCLPDPYGCSCATGWKGLQCNEACHPGFYGPDCKLRCSCNNGEMCDRFQGCLCSPGWQGLQCEREGIPRMTPKIVDLPDHIEVNSGKFNPICKASGWPLPTNEEMTLVKPDGTVLHPKDFNHTDHFSVAIFTIHRILPPDSGVWVCSVNTVAGMVEKPFNISVKVLPKPLNAPNVIDTGHNFAVINISSEPYFGDGPIKSKKLLYKPVNHYEAWQHIQVTNEIVTLNYLEPRTEYELCVQLVRRGEGGEGHPGPVRRFTTASIGLPPPRGLNLLPKSQTTLNLTWQPIFPSSEDDFYVEVERRSVQKSDQQNIKVPGNLTSVLLNNLHPREQYVVRARVNTKAQGEWSEDLTAWTLSDILPPQPENIKISNITHSSAVISWTILDGYSISSITIRYKVQGKNEDQHVDVKIKNATIIQYQLKGLEPETAYQVDIFAENNIGSSNPAFSHELVTLPESQAPADLGGGKTRHHHHHH |
| Uniprot ID | Q02763 |
| Protein RefSeq | NP_000450.2 |
| mRNA RefSeq | NM_000459.3 |
Figures
SDS-PAGE analysis of recombinant human soluble TIE-2-His produced from insect cells. Sample was loaded in 10% SDS-polyacrylamide gel under reducing condition and stained with Coomassie blue.
Functional ELISA to test the binding of sTIE-2 to its ligand Ang-2. Ang-2 was coated on the plate and increasing amounts of recombinant human soluble sTIE-2 was added.
Reference
- Angiopoietin-1 mediates the proangiogenic activity of the bone morphogenic protein antagonist Drm. S. Mitola et al., Blood. 2008 Aug 15;112(4):1154-7.
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