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1Expression and localization of VCX/Y proteins and their possible involvement in regulation of ribosome assembly during spermatogenesis显示文摘Variable Charge X/Y (VCX/Y) is a human testis-specific gene family that localized on X and Y chromo-somes. In this study, VCY protein was expressed in E. coli in the form of glutathione-S-transferase (GST)fusion protein. With the purified fusion protein as antigen, the anti-GST-VCY antibody was generated andthe localization of VCY protein in human testis was determined by immunohistochemistry. In the testisseminiferous epithelium, VCY proteins were highly expressed in nuclei of germ cells. Using propidium io-dide staining and green fluorescent protein (GFP) tag technologies, VCY and VCX-8r proteins were mainlylocalized in the nucleoli of COS7 cells. In addition, the colocalization for VCY and VCX-8r in COS7 cellswas also observed. With VCY cDNA as bait, a cDNA fragment of acidic ribosomal protein PO was obtainedusing yeast two-hybrid system. All the information above indicates that VCX/Y protein family might beinvolved in the regulation of ribosome assembly during spermatogenesis.SHENGWEIZOU JIANCHAOZHANG XIAODONGZHANG SHIYINGMIAO SHUDONGZONG QISHENG LINFANGWANG 2003Cell Research2003,13,3:4
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