Cholera toxin is comprised of two subunits, A and B. Subunit A is an ADP-ribosyltransferase, which disrupts the proper signaling of G proteins, leading to cell dehydration. The 12kD nontoxic subunit B ("choleragenoid"), which is assembled into a 60kD pentamer above pH 2, allows the protein complex to bind to cellular surfaces via the pentasaccharide chain of ganglioside GM1.
Applications:
Suitable for use in ELISA. Other applications not tested.
Recommended Dilution:
Optimal dilutions to be determined by the researcher.
Hybridoma:
Sp2/0 myeloma cells with spleen cells from Balb/c mice.
Storage and Stability:
May be stored at 4 degrees C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and store at -20 degrees C. Aliquots are stable for at least 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.