Before egg fertilization, the gene produces a protein, found in the cytoplasm of the egg, that controls the pattern of cell division and thus handedness.

卵子受精之前，这种基因会产生一种蛋白质，这种蛋白质存在于卵子的细胞质中，它控制着细胞分裂的模式，从而控制着旋向性。

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The gene orchestrates production of a protein that encourages cell division, making this group prone to especially persistent, fast-growing tumors.

这种基因会促使生成一种刺激细胞分裂的蛋白质，把细胞组织变成持续快速增长的肿瘤。 Genentech发明了一种可以遏制这种蛋白质的新药——Herceptin。

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Their functions were related to cell division, apoptosis, signaling, regulation of gene and protein expression, tissue or cell structure, metabolism and so on. Several genes were functionally unknown.

分别是细胞分裂、凋亡、信号传递、基因和蛋白质表达调控、组织细胞结构、物质和能量代谢相关的基因以及某些功能尚不清楚的基因。

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So if it's not a cell that's going through division you can't use a retrovirus to express the protein.

如果细胞不在分裂阶段,你就不能用逆转录病毒来表达某个蛋白

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