Approximately 29.7 KDa, a single non-glycosylated polypeptide chain containing 259 amino acids.
Biological Activity
Fully biologically active when compared to standard. The specific activity determined by an assay on anti-proliferation and anti-migration using endothelial cells in vitro and anti-angiogenesis in vivo is 5.5 × 105 IU/mg.
Appearance
Sterile filtered white lyophilized (freeze-dried) powder.
Formulation
Lyophilized from a 0.2 um filtered concentrated solution in 20 mM NaAc, pH 5.5, 4 % mannitol.
Endotoxin
Less than 1 EU/ug of rHuAngiostatin as determined by LAL method.
Reconstitution
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water or aqueous buffer containing 0.1 % BSA to a concentration of 0.1-1.0 mg/mL. Stock solutions should be apportioned into working aliquots and stored at ≤ -20 °C. Further dilutions should be made in appropriate buffered solutions.
Stability and Storage
Use a manual defrost freezer and avoid repeated freeze-thaw cycles.- 12 months from date of receipt, -20 to -70 °C as supplied.- 1 month, 2 to 8 °C under sterile conditions after reconstitution.- 3 months, -20 to -70 °C under sterile conditions after reconstitution.
References
1. Takahashi S, Shinya T, Sugiyama A. 2010. J Pharmacol Sci, 112: 432-7.2. Frank KFandMuller-Ehmsen J. 2009. Heart, 95: 269-70.3. Perri SR, Annabi B, Galipeau J. 2007. FASEB J, 21: 3928-36.4. Kim KS, Kim HS, Park JS, et al. 2004. Cancer Gene Ther, 11: 441-9.5. Wahl ML, Owen CS, Grant DS. 2002. Endothelium, 9: 205-16.
