Application: ELISA, In vitro neutralization, Western blot analysis. Isotype: Rabbit Ig Antigen: For immunization recombinant rat IFN-β (CHO-derived) is used. Purification: Antibodies were sequentially purified by ammonium sulphate precipitation and protein A-affinity chromatography. Packaging: Lyophilized and vacuum-packed. Contents: 0.5 mg/vial Buffer: Prior to lyophilization: 0.5 ml PBS + 125 mM trehalose. Specificity: Neutralizes both natural and recombinant rat IFN-β. Cross-reactivity with human IFN-β has not been tested. Activity: > 5 x 103 neutralizing units/mg IgG.