Angiopoietin-2 (ANG-2)

Angiopoietin 1 and Angiopoietin 2 are important for development of the endothelium, by regulating tyrosine phosphorylation of the membrane receptor Tie 2. Angiopoietin 2 is only 60% homologous with Angiopoietin 1. Angiopoietin-2 is a naturally occurring antagonist of angiopoietin-1 that competes for binding to the TIE2 receptor and blocks ANGPT1-induced TIE2 autophosphorylation. Angiopoietin 1 binding to Tie 2 causes phosphorylation of the receptor. Angiopoietin 2 competes for this binding, and thus blocks receptor phosphorylation. Angiopoietin 2 expression occurs at sites of vascular remodelling: dorsal aorta and major aortic branches, ovary, placenta and uterus.\n\nUniProt Number:\nO15123\n\nGene ID:\nANGPT2\n\nApplications:\nSuitable for use in Western Blot.\n\nRecommended Dilution:\nOptimal dilutions to be determined by the researcher.\n\nStorage and Handling:\nStore at -20?C for one year. After reconstitution, store at 4?C for one month. Can also be aliquoted and stored frozen at -20?C for long term.\nAvoid repeated freezing and thawing. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.

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SPECIFICATIONS

Catalog Number

144157

Size

100ug

Applications

WB

Hosts

Rabbit

Reactivities

Hum

Form

Supplied as a lyophilized powder. Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3. Reconstitution: Add 0.2ml of distilled water will yield a concentration of 500ug/ml.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

References

1. Kim, I.; Kim, J.-H.; Ryu, Y. S.; Jung, S. H.; Nah, J. J.; Koh, G. Y. : Characterization and expression of a novel alternatively spliced human angiopoietin-2. J. Biol. Chem. 275: 18550-18556, 2000. \n2. Maisonpierre, P. C.; Suri, C.; Jones, P. F.; Bartunkova, S.; Wiegand, S. J.; Radziejewski, C.; Compton, D.; McClain, J.; Aldrich, T. H.; Papadopoulos, N.; Daly, T. J.; Davis, S.; Sato, T. N.; Yancopoulos, G. D. : Angiopoietin-2, a natural antagonist for Tie2 that disrupts in vivo angiogenesis. Science 277: 55-60, 1997. \n3. Ward, E. G.; Grosios, K.; Markham, A. F.; Jones, P. F. : Genomic structures of the human angiopoietins show polymorphism in angiopoietin-2. Cytogenet. Cell Genet. 94: 147-154, 2001.

Additional Info

Recognizes human ANG2. No crossreactivity with other proteins.