Helicobacter pylori, Vac Toxin, Recombinant

May be stored at 4 °C for short term only. Aliquot to avoid repeated freezing and thawing. Store at -20 °C. Aliquots are stable for 6 months after receipt at 20 °C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.