Early embryonic lethality caused by disruption of the gene for choline kinase alpha, the first enzyme in phosphatidylcholine biosynthesis.

Abstract

Choline kinase alpha (CK-alpha) is one of two mammalian enzymes that catalyze the phosphorylation of choline to phosphocholine in the biosynthesis of the major membrane phospholipid, phosphatidylcholine. We created mice lacking CK-alpha with an embryonic stem cell line containing an insertional mutation in the gene for CK-alpha (Chka). Embryos homozygous… (More)

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