�������ϲ����Ͽ�

In a bit of pandemic relief, while still extending our knowledge of the coronavirus, students from �������ϲ����Ͽ� Davis and Cardiff University, Wales, will face off in a biochemistry quiz Wednesday (March 10).

AT A GLANCE

• WHAT: Eric Conn Biochemistry Quizzes, Final Rounds, �������ϲ����Ͽ� Davis vs. Cardiff University
• WHEN: 11 a.m. PST March 10 (7 p.m. GMT at Cardiff)
• WHERE: Online
• ADMISSION: Free

Chancellor Gary S. May will deliver live welcome remarks for the friendly rivalry, and Cardiff President Colin Riordan will deliver a message by video. The event on Zoom is scheduled to start at 11 a.m., and everyone is invited to attend, free of charge.

Distinguished Professor Walter Leal of the Department of Molecular and Cellular Biology is the organizer and the moderator of the Eric Conn Biochemistry Quizzes, named after the .

“I thought the quizzes would help students get out of the Zoom routine,” said Leal, citing the side effects of screen-time fatigue and a lessening of the ability to focus. He also saw an opportunity to foster international connections at a time when student exchanges have been curtailed.

“We hope that this educational activity will promote physically distant, socially close interactions between undergraduate students and further our institutions’ ties,” he said.

Leal described the response to the quizzes as overwhelming. “Students showed a genuine interest in the activity,” he said. “They recorded videos for self-introduction, studied for the quizzes, and — more importantly — made new friends.”

The preliminaries

Sixty students signed up for the �������ϲ����Ͽ� Davis preliminary round, so many that Leal divided it into two rounds for a total of 12 teams with five students each. Eight teams competed in the first preliminary, a Feb. 20 Zoom event that drew an audience of more than 350 people. , and see some of the questions at the bottom of this article.

Two teams advanced to the final rounds:

• Ironic Bonds Team — Kelly Brandt, Jiaying Liu, Aly Lodigiani, Catherine Rodriguez and Efrain Vasquez Santos
• Gibbs Team — Tina Luu, Brandon Matsumoto, Yasi Parsa, Esha Urs and Kathryn Vallejo

The other four teams competed in the second preliminary — and two of them tied for first place:

• Alpha Helices — Mary Aina, Daniel Colon, Stephanie Matsumoto, Joseph Morrison and Eva Pak
• Beta Strands — Beatrice Ark-Majiyagbe, Erica Arsaga, Brycen Carter, Shiwani KC and Samantha Levy

“I am absolutely delighted to provide this opportunity for our students to learn biochemistry, have fun, work as teams and build international ties,” said Leal, who noted that the teams are exchanging university hoodies.

“Yes, remote learning is challenging,” he said, “but it also creates new opportunities.” Indeed, besides the biochemistry quizzes, Leal also has organized and moderated three COVID-19 symposia, each of them reaching hundreds of people on Facebook and Zoom.

The finals

Wednesday’s competition will begin with Ionic Bonds vs. Gibbs Team; the winner will send all five members to the final match, accompanied by one member each from Alpha Helices and Beta Strands, who will compete in a tie-breaker after the Ionic Bonds vs. Gibbs Team match.

The seven-person �������ϲ����Ͽ� Davis team will go up against a seven-person Cardiff team for the championship.  

Questions during the finals will focus on protein structures, particularly two proteins closely related to SARS-CoV-2, which causes COVID-19 illness. “Specifically,” Leal said, “students will be asked questions about the structures of human hemoglobin — the protein that carries oxygen from the lungs to the body’s tissues (and returns carbon dioxide), and the virus’s spike protein — that binds to a human receptor, known as ACE2, and starts the process of invading human cells.”

Leal said one of the most notorious presentations of COVID-19 is hypoxia (insufficient oxygen in the blood). “While the virus replicates and the spike proteins trigger invasion to other cells, hemoglobin cannot capture enough oxygen because the lungs’ alveoli are filled with the mucus derived from the viral infection,” he said.

Judges: Charles Gasser and Clark Lagarias of the �������ϲ����Ͽ� Davis Department of Molecular and Cellular Biology, and John Harwood and Dafydd Jones of the School of Biosciences, Cardiff University.

Test your knowledge

Here are some of the questions from the �������ϲ����Ͽ� Davis preliminaries (click each question to see the answer):

• Why do hairdressers use thioglycolic acid for permanent hair treatment?
• To break disulfide bridges.
• Why is the spike protein called a glycoprotein?
• Because it is decorated with sugar.
• When you get ivy poisoning, where do you expect that the active ingredient (urushiol) will accumulate?
• In the cell membrane.
• Who was the scientist at the �������ϲ����Ͽ� Davis Genome Center who came up with the idea of using papain protease to reduce saliva viscosity?
• Lutz Froenicke
   

Kathy Keatley Garvey, communications specialist with the Department of Entomology and Nematology, contributed to this report.