“DNA is an amazingly beautiful molecule, and it’s so important. Each of our cells has only one copy of DNA, and if it gets damaged, that messes up everything else in the cell,” says Alexis Komor, Ph.D., an assistant professor of chemistry and biochemistry at the University of California, San Diego (UCSD). Check out the highlights of our interview with Dr. Komor to learn about her scientific journey, research on DNA, and advice for students.

Q: How did you decide to study chemistry?

A: I really enjoyed math and science in middle and high school. When I applied to college, I knew I wanted to major in science over math because I felt like it was more relevant to what we experience on a day-to-day basis. I ultimately went into chemistry for a silly reason, but looking back now, I’m so very grateful that I did. Chemistry has this nice balance because it allows you to not only understand how things work on a molecular level but also see how those molecular workings relate to everyday phenomena—for example, understanding how DNA damage on a molecular level can lead to negative health outcomes.

Have you ever wondered why your cells don’t spill into each other or what keeps your skin separate from your blood? The answer to both is lipids—a diverse group of organic compounds that don’t dissolve in water. They’re one of the four major building blocks of our bodies, along with proteins, carbohydrates, and nucleic acids. Types of lipids include:

• Fats, necessary for our bodies’ long-term energy storage and insulation. Some essential vitamins are fat soluble, meaning they must be associated with fat molecules to be effectively absorbed.
• Phospholipids, which make up a large part of cell and organelle membranes.
• Waxes, which help protect delicate surfaces. For instance, earwax protects the skin of the ear canal.
• Steroids, including cholesterol, a precursor to many hormones, which helps maintain the fluidity of cell membranes.

Upgrading X-ray crystallography equipment at the University of Arkansas in Fayetteville has had an unexpected benefit: enabling analyses that could help art museums authenticate, restore, and learn more about their pieces.

Scientists use X-ray crystallography to determine the detailed 3D structures of molecules. In biomedical contexts, researchers often apply X-ray crystallography to map the structures of proteins and other biomolecules like DNA and RNA. A molecule’s structure can shed light on its function and help answer scientific questions. For example, knowing the structures of proteins involved in antibiotic resistance can help researchers determine how those molecules work and how to combat bacteria that produce them.

In 2021, we shared the perspectives of third-year undergraduates who had recently joined the first cohort of the Maximizing Access to Research Careers (MARC) program at Vanderbilt University in Nashville, Tennessee. Vanderbilt’s MARC program provides mentorship and professional development opportunities to third- and fourth-year undergraduates who plan to pursue advanced degrees and are from groups that are underrepresented in the biomedical sciences. In spring 2022, as the cohort prepared for graduation, we followed up on their progress and postgraduation plans.

“I feel really pleased with how well our students have done despite entering the program in the midst of the COVID-19 pandemic,” says Katherine Friedman, Ph.D., an associate professor of biological sciences at Vanderbilt and a co-director of its MARC program. Four of the six first-cohort students are entering doctoral programs in fall 2022, and the other two have made preparations to pursue higher degrees at a later date.

If you’ve ever had a surgery or even a minor procedure, you’ve probably benefited from the medical marvel of anesthesia—the treatment that doctors, called anesthesiologists, give to keep you from feeling pain. And it’s come a long way since the discovery of diethyl ether. Here we dive into the different types, its history, and the way it works.

The chemistry of anesthetics has advanced since the 1840s, producing different types of anesthesia depending on the compounds involved. See more chemistry infographics like this one in C&EN’s Periodic Graphics collection.

“In my lab, we’ve been gene hunters—starting with visible phenotypes, or characteristics, and searching for the responsible genes,” says Miriam Meisler, Ph.D., the Myron Levine Distinguished University Professor at the University of Michigan Medical School in Ann Arbor. During her career, Dr. Meisler has identified the functions of multiple genes and has shown how genetic variants, or mutations, can impact human health.

Becoming a Scientist

Dr. Meisler had a strong interest in science as a child, which she credits to “growing up at the time of Sputnik” and receiving encouragement from her father and excellent science teachers in high school and college. However, when she started her undergraduate studies at Antioch College in Yellow Spring, Ohio, she decided to explore the humanities and social sciences. After 2 years of sociology and anthropology classes, she returned to biomedical science and, at a student swap, symbolically traded her dictionary for a slide rule—a mechanical device used to do calculations that was eventually replaced by the electric calculator.

“As a researcher, you get to learn something new every day, and that knowledge feeds more questions. It’s this eternal learning process, and I find that really enticing about being in science,” says Eszter Boros, Ph.D., an assistant professor of chemistry at Stony Brook University in Stony Brook, New York. Our interview with Dr. Boros highlights her journey of becoming a scientist and her research on biomedical applications of metals.

Q: What drew you to science?

A: I was born and raised in Switzerland, and I went to a linguistics-focused high school there, but I gravitated to chemistry because I loved that we could understand the world at a molecular level and see the macroscopic consequences of microscopic processes.

When you encounter the word expression, you may think of a smile, a grimace, or another look on someone’s face. But when biologists talk about expression, they typically mean the process of gene expression—when the information in a gene directs protein synthesis. Proteins are essential for virtually every process in the human body.

“I’m Pink Phoenix, leader of the Vetahumanz League of superheroes, and it’s the best job in the world.” The League of VetaHumanz is a superhero league for veterinarians, founded and led by Pink Phoenix, the alter ego of Sandra San Miguel, D.V.M., Ph.D. Through support from the NIGMS Science Education Partnership Award (SEPA) program, the league seeks to diversify the veterinary profession.

Members of the league work with elementary students across the country to give them a sense of belonging to the veterinary profession. “I’m most proud of bringing people together who share the mission and vision with all their heart,” Pink Phoenix remarks. “Nobody can just be a member of the league. You have to earn the cape.” The league has over 400 certified role models throughout the country who are either veterinarians—VetaHumanz—or veterinary school students—VetaHumanz in training.

Over the past 2 years, you’ve probably heard a lot about the spread of SARS-CoV-2—the virus that causes COVID-19—and the emergence of variants. The discovery and tracking of these variants is possible thanks to genomic surveillance, a technique that involves sequencing and analyzing the genomes of SARS-CoV-2 virus particles from many COVID-19 patients. Genomic surveillance has not only shed light on how SARS-CoV-2 has evolved and spread, but it has also helped public health officials decide when to introduce measures to help protect people.

In December 2021, the NIGMS-supported SARS-CoV-2 genomic surveillance program at the University of New Mexico Health Science Center (UNM HSC) in Albuquerque detected the first known case of the Omicron variant in the state, which enabled a rapid public health response. The program’s co-leaders, assistant professors Darrell Dinwiddie, Ph.D., and Daryl Domman, Ph.D., were watching on high alert for it to enter New Mexico, and when it did, they were poised to quickly identify it: