Round 3: Tossup 15

The Fahrni group pioneered cellular detection of this element using tetrathiazacrown (“tetra-THY-uh-za-crown”) ether probes. This metal is needed for beta-monooxygenases to convert dopamine into norepinephrine. This metal can be delivered to its ATP7A transporter while bound to ceruloplasmin. This metal’s iodide is notably not required when using cyclooctynes (“cyclo-OCK-tynes”) developed by the Bertozzi group in a variant of click chemistry “free” of it. Zinc and this metal are coordinated (10[1])in the most common family of eukaryotic superoxide dismutases. ParaGard is among a class of IUDs (10[1])coated in this metal. (10[1])Epoxide (10[1])ring openings in alkaloid syntheses often use lithium and (10[1])this metal in the form of Gilman reagents. (-5[1])Oxygen (-5[1])is bound to this metal in hemocyanin (10[1])giving spider blood a blue hue. For 10 points, name this element whose (10[1])symbol is Cu. ■END■ (10[2])

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