Recombinant Protein: Staphylococcus aureus cell surface associated lipoprotein Conserved Staph Antigen, 1A (Csa1A) 39-40 Expressed and harvested from E. coli as a recombinant protein Csa1A construct starts at the 39-40 amino acid sequence The theoretical molecular weight of the protein is approximately 28.0 kDa. Formulation & Storage: Supplied in PBS and 0.02% proclin. Store at +4°C for 2-3 weeks, -80°C for long term Intended for research use only, not for human, therapeutic, or diagnostic applications.