The MHC class I chain-related gene A (MICA) is highly poly morphic, In
this paper we demonstrate polymorphism in the other expressing member
of the MIC family of genes: MICB. Using a sequencing-based typing app
roach on cDNA, analysis of exons 2 through 6 revealed eight polymorphi
c sites resulting in six unique MICB sequences. Although MICE has high
nucleotide homology with MICA, its polymorphism is restricted and at
different sites compared to those in MICA.