MHC Class 2, I-Ek

May be stored at 4 °C for short-term only. For long-term storage and to avoid repeated freezing and thawing, aliquot and add glycerol (40-50%). Store at -20 °C or colder. Aliquots are stable for at least 12 months at -20 °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.

Recognizes an epitope on mouse I-Ek MHC class II alloantigen. Reacts with the I-Ek class II alloantigen on cells from mice of the H-2r haplotype; reactivity with H-2d and H-2p haplotypes has not been observed.