Krüppel
Krüppel is a gap gene which encodes a zinc finger protein with four tandemly repeated zinc finger domains.[1]
Put into English, it actually controls the development of a zygote early on in its growth, causing a gap in the otherwise heterogenous arrangement of cells. It also controls access to several other subsequent genes, imposing order on the developing embryo.
Krüppel means, literally, "cripple" in German.
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