A gene on chromosome 2q31.3 that encodes sperm-specific antigen 2, which is expressed in the testis and may be involved in the early cleavage of fertilised oocytes.
Some of the other genes that we identified as being regulated by [E.sub.2] and [T.sub.3] are directly involved in cell proliferation, such as EMP1, IFNAR2, VMP, FLJ20073, MYC, and AREG, and some are involved in nucleotide binding and/or protein binding, such as PFKFB3, APPBP2, SSFA2, and NALP7.