os is a zinc-finger containing, RNA-binding protein that has been implicated in germ cell development in both invertebrates and vertebrates. In Drosophila, os represses apoptosis during development to ensure proper germ-line development. Unlike os1 whose expression in mice is dispensable, the os2 and os3 proteins are required for germ cell development. os2-null primordial germ cells (PGCs) die only in the male gonads and show no defects in females, while os3-null PGCs are lost during the migration stage regardless of sex. os2 and os3 have distinct expression patterns during embryo development, suggesting that these two proteins ...
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100 µL
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400 uL
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25 ug
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