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Neuropathy target esterase : ウィキペディア英語版 | Neuropathy target esterase
Neuropathy target esterase also known as patatin-like phospholipase domain-containing protein 6 (PNPLA6) is a neuropathy target esterase enzyme that in humans is encoded by the ''PNPLA6'' gene.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=10908 )〕 Neuropathy target esterase is a phospholipase that deacetylates intracellular phosphatidylcholine to produce glycerophosphocholine. It is thought to function in neurite outgrowth and process elongation during neuronal differentiation. The protein is anchored to the cytoplasmic face of the endoplasmic reticulum in both neurons and non-neuronal cells.〔 == Function == Neuropathy target esterase is an enzyme with phospholipase B activity: It sequentially hydrolyses both fatty acids from the major membrane lipid phosphatidylcholine, which generates water-soluble glycerophosphocholine. In cells of eukaryotes from yeast to humans, NTE is anchored to the cytoplasmic face of the endoplasmic reticulum membrane and is particularly abundant in neurons, the placenta, and the kidney. Loss of NTE activity results in abnormally elevated levels of phosphatidylcholine in brain and impairment of the constitutive secretory pathway in neurons.〔 In kidney, the expression of neuropathy target esterase is regulated by TonEBP as part of osmolyte production when a concentrated urine is produced.
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