Ghrelin gets its GOAT.

Gardiner, James; Bloom, Steve · Cell Metab · 2008

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Abstract

Ghrelin, a powerful appetite-stimulating hormone secreted by the stomach, is modified by an octanyl side chain on its third amino acid, a serine, which is essential for its activity. A recent study (Yang et al., 2008) reports identification of the enzyme catalyzing the addition of this octanyl, GOAT.

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