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code:73-001
Many transcripts for proteins specifically expressed in haploid germ cells are synthesized in the spermatogenesis. A monoclonal antibody TRA54 recognizes specific organelles in germ cell cytoplasm from spermatocytes to spermatids (1 2). Western blots using TRA54 revealed broad bands with 85 kD 190 kD and >200 kDa in testis probably due to alternative splicing and/or post-translational modification (Fig. 1). The molecular size diversity is due to the difference in glycosilation (Ref. 1). This antibody can be used for immunohistochemical staining of testicular tissues (1 3).
The hybridoma producing TRA54 was obtained from the immunaization of a rat with cell lysates of adult mouse testes by the group of Prof. Yoshitake Nishimune of Osaka University.
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