This product has only the Anti-Ribosomal P precipitin band when tested using double immunodiffusion against rabbit thymus extract. The titer obtained will vary with the test system; however, undiluted antibody shows a strong Anti-P precipitin band.
Specificity has been established by the formation of a precipitin line of identity with a standard reference serum. This product shows no reactivity at a dilution of 1:100 when tested against purified nRNP, Ro/SS-A, La/SS-B, Scl-70, Sm, Jo-1, or Mitochondrial antigens in an ELISA system designed to detect IgG antibody.
0.01M Phosphate, 0.13M NaCl, 0.02% Azide
2 ml Deionized water. After reconstituting, aliquot and store frozen at -20°C.