Specificity
Shows the Sm precipitate band when tested using double immunodiffusion against rabbit thymus extract. Specificity is verified by identity of precipitation with CDC-AF reference serum. Anti-RNP precipitant is also detected. Titer will vary with test system; however, undiluted antibody shows a strong Sm precipitate band. Exhibits no reactivity at a dilution of 1:100 when tested against purified SSB, Scl -70 and Jo-1 antigens in an ELISA system designed to detect all IgG subclasses. Anti-RNP and low levels of anti-SSA activity are detected in this ELISA system.
Storage/Stability
Store at < 0 °C. Avoid multiple freeze/thaw cycles.
More Information
Format Type:
Purified Liquid
Formulation:
Lyophilized from 0.01 M Phosphate, 0.13 M Sodium Chloride, pH 7.2.
Preservative:
0.02% Sodium Azide (prior to lyophilization).
Expiration:
12 months from the date of shipment when stored properly.