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Recombinant Human Angiopoietin 1, Myc-tagged

Cat. No.: ANGPT1-115H
Product Overview: Recombinant Human Angiopoitin-1 (Ang-1), a 66 kDa protein consisting of 476 amino acid residues (N21-F496) is fused to an N-terminal myc-tag and produced ininsect cells.
Description: The Angiopoietin (Ang) family of growth factors includes four members, all of which bind to the endothelial receptor tyrosine kinase Tie2. Two of the Angs, Ang-1 and Ang-4, activate the Tie2 receptor, whereas Ang-2 and Ang-3 inhibit Ang-1-induced Tie2 phosphorylation. Angiopoietin-1 (Ang-1) is a secreted growth factor which binds to and activates the Tie-2 receptor tyrosine kinase. The factor enhances endothelial cell survival and capillary morphogenesis, and also limits capillary permeability. Ang-2 binds the same receptor but fails to activate it: hence, it is a natural inhibitor of Ang-1. Ang-2 destabilizes capillary integrity, facilitating sprouting when ambient vascular endothelial growth factor (VEGF) levels are high, but causing vessel regression when VEGF levels are low. Tie-1 is a Tie-2 homologue but its ligands are unknown. Angiopoietin and Tie genes are expressed in the mammalian metanephros, the precursor of the adult kidney, where they may play a role in endothelial precursor growth. Tie-1-expressing cells can be detected in the metanephros when it first forms and, based on transplantation experiments, these precursors contribute to the generation of glomerular capillaries. During glomerular maturation, podocyte-derived Ang-1 and mesangial-cell-derived Ang-2 may affect growth of nascent capillaries.
Source: Insect Cells
Physical Appearance: Sterile Filtered clear liquid formulation.
Purity: Greater than 95.0% as determined by: (a) Analysis by RP-HPLC. (b) Analysis by SDS-PAGE.
Formulation: The Angiopoietin 1 (0.111mg/ml) contains 50mM Tris-HCL, pH 7.5, 150mM NaCl, 0.05% CHAPS.
Biological Activity: The biological activity was determined by the induction of endothelial cell sprouting as described in Korff et al., 2001.
Protein Content: Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm using the absorbency value of 1.27 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics). 2. Analysis by RP-HPLC, using a standard solution of ANG-1 as a Reference Standard.
Storage: ANG-1 although stable at 14℃ 1 week, should be stored desiccated below -18℃. Please prevent freeze-thaw cycles.
Gene Name: ANGPT1 angiopoietin 1 [ Homo sapiens ]
Synonyms: ANGPT1; angiopoietin 1; AGP1; AGPT; ANG1; KIAA0003, Ang1; Angiopoietin-1; ANG-1
Gene ID: 284
mRNA Refseq: NM_001146
Protein Refseq: NP_001137
MIM: 601667
UniProt ID: Q15389
Chromosome Location: 8q23.1
Pathway: Hemostasis; Signaling in Immune system
Function: receptor binding

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