Talk:Pantothenate kinase

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Multiple double bonds in phosphate group?

Why does the phosphate group of the 4'-phosphopantothenate have three oxygens that are double bonded to it, rather than just one double bonded O, and two singly bonded O^-s, as in this diagram? — Preceding unsigned comment added by 82.44.98.35 (talk) 22:17, 3 March 2016 (UTC)[reply]