Bok choy (from the Cantonese, literally meaning "white vegetable"; also spelled "pak choi", "bok choi", and "pak choy"). In the UK and South Africa, the term "pak choi" is used. Less commonly, the descriptive English names "Chinese chard", "Chinese mustard", "celery mustard", and "spoon cabbage" are also employed. In Australia, the New South Wales Department of Primary Industries has redefined many transcribed names to refer to specific cultivars. In addition, they have introduced the word "buk choy" to refer to a specific kind of cabbage distinct from "pak choy". In China, the majority of Chinese speak Mandarin (about 955 million people), and
BOK (gene) Bcl-2 protein family. The mouse homologue of Bok is called Matador (Mtd). This name is derived from the Latin term mactator which means butcher or killer. Additionally, homologous proteins were found in "Drosophila melanogaster" (fruit fly) and "Gallus gallus" (chicken). The human BOK promoter is activated by the overexpression of members of the E2F hand transcription factor family. Typically, these transcription factors are involved in the promotion of S-phase, so there might be a connection between Bok expression and cell cycle progression. Due to this regulation of Bok expression by the cell cycle, it was proposed that Bok sensitizes growing