The sm (Smith) is an autoantigen on a series of particles composed of RNA and protein. Unlike RNP, the sm antigen is resistant to RNase, but partially sensitive to trypsin. It is involved in the pathogenesis of Systemic lupus erythematosus (SLE). Antibodies to sm are found in 20-30% of patients with SLE.
Suitable for use in Electron Microscopy, Immunofluorescence, Western Blot, Immunohistochemistry and Affinity Purification. Other applications have not been tested.
Western Blot: 0.5-1.0ug/ml for 2 hours at RT
Immunohistochemistry (Formalin/paraffin): 1:50-1:100 for 30 minute at RT. No special pretreatment is required for immunohistochemical staining of formalin/paraffin tissues.
Optimal dilutions to be determined by the researcher.
LS174T cells, Tonsil and Testis
Storage and Stability:
May be stored at 4°C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20°C. Aliquots are stable for 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
|Sm (Smith) Antigen. Cellular Localization: Nuclear. MW of Antigen: ~25kD (predominant) |
|Purified by Protein G affinity chromatography.|
|Supplied as a liquid in PBS, pH 7.4. Also available with BSA and azide. See S1014-29B.|
|Recognizes crossreactive epitopes on the B’/B and D polypeptides of Sm. Precipitates the small nuclear RNAs U1, U2, U4, U5, and U6 providing direct evidence that the Sm antigen resides on all these RNA-protein complexes. Species crossreactivity: human, porcine, rabbit, rat and Drosophila.|
|Intended for research use only. Not for use in human, therapeutic, or diagnostic applications.|
1. Lerner EA; et al. Proc Natl Acad Sci USA, 1981, 78(5):2737–41. 2. James JA; et al. Clinical and Experimental Immunology, 1994 Dec, 98(3):419–26. 3. Kiseleva E, et al.. Embo Journal, 1994, 13(24):6052- 61. 4. Moussa F; et al. Cell and Tissue Research, 1994 Nov, 278(2):363–78 Additional: 1. Puvion-Dutilleul F; et al. Journal of Cell Science, 1994 Jun, 107 ( Pt 6):1457–68. 2. Pyne CK; et al. Chromosoma, 1994 Dec, 103(7):475–85. 3. Hirakata M; et al. Journal of Immunology, 1993, 150:3592–601. 4. Prather RS; et al. Molecular Reprod and Development, 1992, 33(2):119–23. 5. Segalat L; et al. Biol of the Cell, 1992, 75(3):181–5. 6. Eisenberg RA; et al. J Clin Invest, 1990, 85(1):86–92.|