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1.04 mg/mL by UV absorbance at 280 nm

Analysis by SDS-PAGE resulted in a pattern consistent with purified OspA

0.02 M Potassium Phosphate, 0.15 M Sodium Chloride, pH 7.2 and 0.01% (w/v) Sodium Azide

At +4°C: not determined 

At -80°C: not determined

Can be frozen, but avoid multiple freeze/thaw cycles

Store vial at -20°C prior to opening. Aliquot contents and freeze at -20°C or below for long term storage. Centrifuge product if not completely clear after standing at room temperature. Dilute only prior to immediate use