Rec Protein A This recombinant protein A from Staphylococcus aureus Cowan I was expressed in Bacillus. The gene has been altered to truncate the protein A at the carboxyl terminal. This does not affect the binding characteristics. Label or Dye: Unconjugated Product Size: 5 mg Shipping Condition: Wet Ice Regulatory Statement: For Research Use Only. Not for use in diagnostic procedures. Store at 2-8°C