An image of a female scientist working in a lab, researching photosynthesis, with the title "Breaking Cell Boundaries" at the top of the image

show/hide words to know

ATP: adenosine triphosphate. ATP is the energy-carrying molecule of all cells......more

Free electron microscope: a microscope that uses beams of electrons to read the structure of small objects and molecules.

Career Path for Petra Fromme

Fast Facts:

  • Number of years in school: 21
  • Favorite class / subject: Virology
  • Hardest class / subject: Organic Chemistry Lab
  • First Job: Sales person and cashier at a department store
  • Dream job as a kid: Teacher
  • One word you would use to describe your current job: Discovery

Lasers and Music

You are sitting in an auditorium as a hush falls over the crowd. The orchestra members on stage shifts in their seats while lining up their music, and then raise their instruments to play. A slow low tone emerges from a French horn. It is gradually met with spiraling notes from the strings, raising in volume and octaves. At the climax the sounds cut off for a beat. Then a jaunty waltz emerges from the horns and strings. New instruments add their voices through the rounds of three counts as they work their way through Juliet’s Waltz.

A picture of an instrument called a viola

Fromme's talent is not limited to the laboratory. She also plays the viola in two orchestras in the Phoenix area. Image via The Metropolitan Museum of Art.

When you think of a renowned cell biologist who constructs lasers, orchestras and instruments probably don’t come to mind. However, Petra Fromme is an accomplished musician as well as an accomplished scientist. She plays viola for the Tempe Symphony Orchestra and the Scottsdale Philharmonic Orchestra. She has always used music to clear her thinking and to come up with new ideas. Many people give up one passion for another, but Fromme has pursued many different passions in her life.

When Fromme was an undergraduate student, she wanted to cure cancer. She was driven to help people, and to do so from the lab. But as she was participating in different research groups she found that she didn’t like working with animals. The prior summer she had worked with a research group on photosynthesis, which she enjoyed. So, she went back to that group to work on ATP and photosynthesis.

Research on photosynthesis led her to working on lasers and the free electron microscope. This is where Fromme started to shine as a researcher and emerging leader in her field. She saw a problem in her field with free electron microscopes destroying samples, so she plunged into solving it.

a molecular representation of photosystem 1

This image was created by Petra Fromme and Raimond Fromme using X-ray FEL crystallography and special computer programs. It shows the Photosystem 1 complex, which is very important for photosynthesis.

She put together a group of scientists who were excited to tackle the problem together. And even though many people had said she couldn’t do it, and no one wanted to give her money to try, she and her group solved the problem. Now anyone who wants to use a free electron microscope can without worrying about their sample. Solving the problem by making protein membrane crystals was not the only result to come from that project; they also ended up with two-hundred patents.

After she established the group to create protein membrane crystals, she wanted to become a teacher and researcher at a university. However, she suffered from what many suffer from in science - professional envy due to her accomplishments. Young researchers, particularly women, can be blocked from jobs and funding by older and more established peers. This happened to Fromme, and it caused her to nearly give up on her dreams. However, an opportunity presented itself in America: Arizona State University wanted her to come and start a research center. She grabbed that opportunity, her family, and her viola, and moved to Arizona. Now she is the director of the Biodesign Center for Applied Structural Discovery, with several scientists and graduate students working for her.

Family is very important to Fromme, and she dedicates time to spend with her children and grandchildren. She knew she wanted a family and a career so she made both happen. Now she encourages the women in her lab to seize opportunities and chase the life they want. She welcomes women who want to have families and start them early, in the same way she did, in order to have everything they want in life: family, career, and the ability to pursue their passions.

Breaking Cell Boundaries was created in collaboration with The Biodesign Institute at ASU. 

View Citation

You may need to edit author's name to meet the style formats, which are in most cases "Last name, First name."

Bibliographic details:

  • Article: Career Path: Petra Fromme
  • Author(s): Challie Facemire
  • Publisher: Arizona State University School of Life Sciences Ask A Biologist
  • Site name: ASU - Ask A Biologist
  • Date published: June 30, 2022
  • Date accessed: December 6, 2022
  • Link:

APA Style

Challie Facemire. (2022, June 30). Career Path: Petra Fromme. ASU - Ask A Biologist. Retrieved December 6, 2022 from

American Psychological Association. For more info, see

Chicago Manual of Style

Challie Facemire. "Career Path: Petra Fromme". ASU - Ask A Biologist. 30 June, 2022.

MLA 2017 Style

Challie Facemire. "Career Path: Petra Fromme". ASU - Ask A Biologist. 30 Jun 2022. ASU - Ask A Biologist, Web. 6 Dec 2022.

Modern Language Association, 7th Ed. For more info, see
Petra Fromme, biochemist at Arizona State University
Petra Fromme studies the biochemistry of cells, and mainly during photosynthesis.

Be Part of
Ask A Biologist

By volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteers page to get the process started.

Donate icon  Contribute

Share this page:


Share to Google Classroom