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 in the most common family of eukaryotic superoxide dismutases. ParaGard is among a class of IUDs coated in this metal. Epoxide ring openings in alkaloid syntheses often use lithium and this metal in the form of Gilman reagents. Oxygen is bound to this metal in hemocyanin giving spider blood a blue hue. For 10 points, name this element whose symbol is Cu. ■END■
| California (North) | Main Site | Y | 3 | 100% | 0% | 0% | 54.33 |
| California (South) | Main Site | Y | 4 | 100% | 0% | 25% | 89.50 |
| Florida | Main Site | Y | 3 | 100% | 0% | 33% | 104.00 |
| Great Lakes | Main Site | Y | 4 | 100% | 0% | 0% | 84.75 |
| Lower Mid-Atlantic | Main Site | Y | 9 | 100% | 0% | 22% | 101.33 |
| Midwest | Main Site | Y | 9 | 100% | 0% | 11% | 80.89 |
| Northeast | Main Site | Y | 6 | 100% | 0% | 0% | 64.17 |
| Overflow | Main Site | Y | 4 | 100% | 0% | 0% | 84.25 |
| South Central | Main Site | Y | 2 | 100% | 0% | 50% | 108.00 |
| Southeast | Main Site | Y | 7 | 100% | 0% | 0% | 79.43 |
| UK | Main Site | Y | 6 | 100% | 0% | 17% | 87.50 |
| Upper Mid-Atlantic | Main Site | Y | 8 | 100% | 0% | 0% | 69.00 |
| Upstate NY | Main Site | Y | 4 | 100% | 0% | 25% | 90.25 |
| Player | Team | Opponent | Buzz Position | Value |
|---|---|---|---|---|
| Nathan Long | Imperial B | Montpellier | 36 | -5 |
| Zachary Joseph | Columbia B | John Jay | 36 | 10 |
| Andrew Wang | Illinois A | Chicago C | 37 | 10 |
| Braden Booth | Missouri A | Claremont | 38 | 10 |
| Michał Gerasimiuk | Stanford A | Stanford B | 48 | 10 |
| Jonathan Huang | MIT | Bowdoin A | 50 | 10 |
| Nick Machin | UCLA A | UCSD B | 51 | 10 |
| Jacob Finley | Notre Dame A | Chicago D | 51 | 10 |
| Oscar Despard | Cambridge A | Southampton B | 51 | 10 |
| Mason Yu | Brown | Southern Connecticut State | 53 | 10 |
| Shiva Tegulla | Central Florida A | Florida C | 54 | 10 |
| Snehan Saroch | Louisville A | WashU B | 56 | 10 |
| Ryan Rosenberg | NYU A | NYU B | 56 | 10 |
| Tanay Bodducherla | Berkeley B | Berkeley A | 57 | 10 |
| Yixi Yang | Yale | Dartmouth B | 57 | 10 |
| Rohan Ganeshan | Harvard A | Bowdoin B | 57 | 10 |
| Tianyu Xu | Georgia Tech B | Georgia Tech D | 57 | 10 |
| Ali Hamzeh | Edinburgh A | Cardiff | 57 | 10 |
| Abby Smith | Berkeley C | Berkeley D | 58 | 10 |
| Samarth Ram | Chicago B | Northwestern B | 60 | 10 |
| Vikshar Athreya | Rutgers A | Johns Hopkins A | 60 | 10 |
| Alan Li | Cornell C | Cornell B | 60 | 10 |
| Yashwanth Bajji | Michigan A | Pittsburgh | 63 | 10 |
| Ben Hellman | Swarthmore | Maryland B | 63 | 10 |
| Ilyas Choukri | Virginia Tech A | South Carolina B | 66 | 10 |
| Matthew Sumanen | Georgia Tech C | Louisville B | 69 | 10 |
| Shardul Parthasarathy | Illinois B | Chicago A | 72 | -5 |
| Nicholas Cuevas | Florida B | Florida A | 75 | -5 |
| Alex Akridge | Indiana A | Purdue A | 75 | 10 |
| Moses Kitakule | Columbia A | Catholic | 75 | 10 |
| Emily Kadolph | Virginia Tech B | Liberty A | 82 | 10 |
| Kayla Drajpuch | Brandeis A | Brandeis B | 82 | 10 |
| Aaron Marchand | Carleton College | Iowa State | 83 | 10 |
| Ethan Ririe | UCSD C | Arizona State | 86 | 10 |
| Rohan Navaneetha Raj | Ohio State B | Michigan C | 86 | 10 |
| Maddie Baldwin | Michigan State | Ohio State C | 86 | 10 |
| Joseph Chambers | Virginia | North Carolina B | 86 | 10 |
| Alana Dickey | Indiana B | Indiana C | 86 | 10 |
| Matthew Forster | Dartmouth A | Harvard B | 86 | 10 |
| Isabel Dent | Sewanee | WashU A | 86 | 10 |
| Sawyer Smith | Mississipi State | Alabama A | 86 | 10 |
| Nathan Easow | Manchester | Warwick B | 86 | 10 |
| Adrian Zhou | NYU C | Maryland A | 86 | 10 |
| Robert Chen | Rochester | Cornell A | 86 | 10 |
| Andrew Miller | Binghamton A | RIT | 86 | 10 |
| Fern Fang | VCU | North Carolina C | 87 | 10 |
| David Nickel | Purdue B | Illinois C | 87 | 10 |
| George Matsumura | Washington A | Minnesota A | 87 | 10 |
| Dwight Solano | Texas A&M A | Texas A | 87 | 10 |
| Asher Lyons | Maryland C | Rutgers B | 87 | 10 |
| Mia Clark-Webb | Oxford C | Birmingham | 88 | 10 |
| Rachel Ezrielev | Georgetown | Vassar | 89 | 10 |
| Fish Tsai | UCSD A | UC Irvine | 92 | 10 |
| Eli O'Sick Johnson | Binghamton B | Penn State | 92 | -5 |
| Samuel Li | William and Mary | NC State A | 96 | 10 |
| Cooper Stringer | Northwestern C | Notre Dame B | 98 | 10 |
| Jack Lewis | Bruin | Tennessee B | 98 | 10 |
| Rachel Fanous | Michigan B | Ohio State A | 104 | 10 |
| Nick Smemoe | North Carolina A | Liberty B | 104 | -5 |
| Parker McCoig | Tennessee A | Alabama B | 104 | 10 |
| Adam Holbrook | Wake Forest | Liberty C | 105 | -5 |
| Timothy Chiu | Northwestern D | Chicago E | 105 | 10 |
| Laila Peterson | James Madison B | Duke | 112 | 10 |
| Ashlee Bacconi | UC Santa Barbara | UCLA B | 113 | -5 |
| Kanyon Beck | Murray State A | Texas B | 114 | -5 |
| Chris Levesley | Warwick A | Southampton A | 115 | 10 |
| Mason Lambert | James Madison A | NC State B | 125 | 10 |
| Krishna Girish | Montpellier | Imperial B | 128 | 10 |
| Andrew Nucci | UCLA B | UC Santa Barbara | 129 | 10 |
| Thomas Tibbetts | Central Florida C | Central Florida B | 129 | 10 |
| Avishka Fulgavkar | Florida A | Florida B | 129 | 10 |
| Katie Young | Liberty C | Wake Forest | 129 | 10 |
| Emily Snider | Liberty B | North Carolina A | 129 | 10 |
| Ezra Santos | Chicago A | Illinois B | 129 | 10 |
| Simarya Ahuja | Washington B | Missouri B | 129 | 10 |
| Keerthana Krishnan | Texas B | Murray State A | 129 | 10 |
| Teigue Kelly | Penn State | Binghamton B | 129 | 10 |