Approximately 39.9 kDa, a homodimer, non-glycosylated polypeptide chain containing 2 × 189 amino acids with Met, Gly and 10 × His at N-terminus.
Biological Activity
Fully biologically active when compared to standard. The potency per mg was determined by Pyrogallic Acid method and was found to be more than 1.0 × 104 IU/mg.
Appearance
Sterile filtered white lyophilized (freeze-dried) powder.
Formulation
Lyophilized from a 0.2 um filtered concentrated solution in PBS, pH 7.4.
Endotoxin
Less than 1 EU/ug of rHuCu/Zn SOD, His 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. Kwiatowski J, Skarecky D, Ayala FJ. 1992. Mol Phylogenet Evol, 1: 72-82.2. Bachus R, Claus A, Megow D, et al. 1995. J Neurol Sci, 129 Suppl: 93-5.3. Qi X, Guy J, Nick H, et al. 1997. Invest Ophthalmol Vis Sci, 38: 1203-12.4. Chou CM, Huang CJ, Shih CM, et al. 2005. Ann N Y Acad Sci, 1042: 303-13.5. Raja SB, Murali MR, Roopa K, et al. 2011. Biomed Pharmacother, 65: 560-8.
