求翻译：Bcl-2基因即B细胞白血病2基因，是一种原癌基因，家族中尚有bcl-x，bax,bad,bak。bcl-2和bax 是功能相反的一对基因，前者抑制细胞凋亡，后者促进细胞凋亡。是什么意思？

bcl-2 gene, b-cell leukemia 2 gene is a proto-oncogene family, there are the expression of bcl-x, of bax, bad, bak. bcl-2 and bax function of the opposite pair of genes, the former inhibit apoptosis, which promote apoptosis.

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The Bcl-2 gene is the B cell leukemia 2 genes, was one kind of original cancer gene, in the family still has bcl-x, bax, bad, bak.bcl-2 and bax are a function opposite pair of gene, the former suppression cell perishes weakly, the latter promotion cell perishes weakly.

Bcl-2 b cell leukemia 2 gene, is a proto-oncogene, there are BCL-x,Bax,bad,bak in the family. BCL-2 and Bax is a function instead of a pair of genes, which inhibits apoptosis, which promotes apoptosis.

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