Novel Promega Enzyme Tackles Biggest Challenge in DNA Forensics

On September 25, Promega Research Scientist David Mokry addressed a full audience at the International Symposium on Human Identification. The event brings together people from the forensic DNA industry – criminalists, analysts, lab directors and more – eager to learn about advancements in the field. Over the next 20 minutes, David unveiled a novel enzyme designed to tackle a challenge that has plagued DNA forensics for decades.

Known as “Reduced Stutter Polymerase,” the new enzyme virtually eliminates confounding stutter artifacts in forensic DNA analysis. When incorporated into STR analysis kits, it will dramatically simplify mixed sample deconvolution and help forensic analysts generate accurate profiles of multiple contributors. This technology is the result of years of collaboration between the Genetic Identity R&D Group and the Advanced Technology Group at Promega.

Here’s how they did it, and why it’s so important.

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Promega Summer Interns Contribute Skills and Ideas from Logistics to R&D

Internships at Promega aren’t about getting coffee for your boss or shredding thousands of old papers. Promega interns take responsibility for complex projects that create notable impacts for their teams, our customers, or Promega as a whole.

Promega hosted 56 interns over the summer in 2024. These students came with unique skills in science, engineering, marketing, IT and so much more. We asked several of them to write about the work they did, as well as the results and benefits they created.

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High School Interns Get Hands-On Experience in Promega R&D

High school interns Tessara Clark and Evelyn Zadzilka work in the lab during their Maydm internships in Promega R&D
Tess (left) and Evie (right) spent the summer after high school graduation interning in Promega R&D.

If she weren’t working at Promega, Evie Zadzilka probably would’ve spent the summer after high school graduation taking summer classes before reporting to her freshman year at the University of Wisconsin-Madison. She runs a small art business, and she might’ve spent more time taking commissions.

Instead, Evie spent the summer before college as an intern in Promega R&D, honing her pipetting skills as she learns about primer design and contributing to the development of a new Promega assay.

“I’ve had a great time,” she says. “I’ll definitely take a lot with me from this experience. I’m so glad I got to do it.”

Evie and her fellow intern Tess Clark were the two high school-aged interns placed at Promega through a relationship with a Madison-based nonprofit called Maydm. This organization helps girls and youth of color in grades 6-12 prepare for careers in STEM by providing educational opportunities and experiences. Through school and summer programs, they strive to disrupt systemic barriers by empowering students like Evie to pursue their dreams as entrepreneurs, developers, engineers and more.

“This will really boost my confidence when I get into lab work next year,” Evie says.

High School Internships at Promega

Tessara Clark and Evelyn Zadzilka work in the lab during their Maydm high school internships in Promega R&D
Tess and Evie were placed in Promega internships through the non-profit organization Maydm.

During their senior year of high school, Tess and Evie were both enrolled in dual-credit courses through Madison College. These classes made them eligible to apply for a high school internship through Maydm.

“I’ve been interested in research for a very long time,” says Tess, another recent school graduate preparing to enter the University of Wisconsin-Madison. “I’m going to major in physics next year, and I don’t have many ties to the biotechnology or chemistry I’ve worked with at Promega. But I wanted hands-on lab experience, so that’s how I ended up here.”

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What Do You Get from a DOORS Scholarship?

D.O.O.R.S. Scholars Day 2024
Eight D.O.O.R.S. Scholars visiting Kornberg Center at Promega Madison in April 2024

The BioPharmaceutical Technology Center Institute (BTC Institute) is collaborating with Promega to provide D.O.O.R.S. Scholarships to 10 students from underrepresented backgrounds. The scholarship has been awarded annually since 2020.

Each student will receive a $5,000 scholarship. But what else can you expect from a D.O.O.R.S. Scholarship?

In April 2024, eight D.O.O.R.S. Scholars visited Promega Madison for D.O.O.R.S. Scholars Day. At the end of the day, they shared their thoughts on the benefits they gained from the program.

Mentorship

D.O.O.R.S. Scholars Lucas Lisondo and Julia Forsey working in the lab on D.O.O.R.S. Scholars Day 2024
Julia Forsey and Lucas Lisondo work in the lab during their visit to Promega Madison

Each D.O.O.R.S. Scholar is assigned a Promega scientist as a mentor. Throughout the school year, they participate in individual and group mentorship sessions that include constructive feedback on their research and professional development.      

My mentor, Sid Withers, was super influential to me. He walked me through differences in what it means to get a PhD or a Masters. We talked about different stigma and mental health issues surrounding science and academia. And overall, I really appreciated his insight into careers in the biotech industry.

Julia Forsey, McGill University
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A Peek Behind the Scenes: Young Researchers Visit Promega Madison

Young Researcher Award recipients 2024
Young Researcher Award winners Alexandre Lalande, Margaux Cochard and Emmanuel Heilman (L to R) visited Promega Madison in June 2024.

Earlier this summer, Promega Madison welcomed three rising researchers from Europe for an immersive experience on the company’s main campus. Alexandre Lalande (PhD student, International Center for Infectiology Research, France), Margaux Cochard (Post-Doc, University of the Littoral Opal Coast, France) and Emmanuel Heilman (Post-Doc, Medical University of Innsbruck) were selected as Young Researcher Award winners by Promega France and Promega Germany. Their prize trip to the United States included tours of Promega facilities, conversations with Promega leaders and research scientists and hands-on training with emerging technologies.

“It’s really interesting to see how Promega manages to find harmony between the science, the people and the business,” Alexandre says. “When you arrive here you immediately feel comfortable.”

Meeting Industry Scientists

Alexandre says that he has always imagined himself working in academia doing basic research, but he never totally ruled out opportunities in industry.

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Logistics Built to Deliver: Kepler Center and Beyond

In March 2024, Promega celebrated a significant milestone by completing extensive renovations to Kepler Center, the primary distribution warehouse located at Promega Madison. This massive expansion has increased the facility’s total area to an astounding 320,000 square feet (29,822 square meters).

So, what does this mean for you?

When you place an order from Promega, you can be confident your products will arrive on time. With customers in more than 120 countries, we have built a global logistics network that ensures quality and reliability from the warehouse to your lab. This expansion of Kepler Center enhances our ability to ensure prompt shipping, reaffirming our commitment to timely deliveries.

Delivering Products When You Need Them

Promega Madison ships directly to 40 countries. We maintain close relationships with domestic carriers and international freight forwarders to make sure packages are transported safely and efficiently. Some of these shipments go directly to customer labs, while others will stock distribution facilities around the world.

Promega has additional logistics warehouses strategically located around the world. These warehouses have much of the same capabilities as Kepler Center, such as a range of storage temperature capabilities including ambient, +4°C, -20°C, -70°C and liquid nitrogen cryogenic storage.

Our logistics teams around the world maintain local inventory and oversee the final delivery of orders. We share common processes around the world to ensure quality and continuity throughout the supply chain. These teams also work with our network of distributors to supply products to specific regions.

Our largest logistics facility outside the United States is the EuroHub, located in Walldorf, Germany. This 3,200 square foot (300 square meter) facility acts as a fulfillment agent, managing the entire logistics process to supply customers of every European branch. In 2023, almost 83,000 parcels were dispatched through the EuroHub.

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Employee-Led Program Reduces Landfill Waste by Rescuing Plastic Film

Katelyn Geleynse presses the button and the machine groans to life. The massive metal plates shift until a half-ton of compressed plastic tumbles out onto the waiting pallet. The crowd cheers. Permanent markers are passed around and everyone takes turns signing the massive block.  

It’s February 16, 2024, and the members of the Promega Sustainability Committee are gathered to witness the first bale of plastic film being ejected from the Madison campus’s new baler. It’s only the first bale, but it represents a major step in the company’s efforts to reduce plastic waste.

Members of the Sustainability Committee gather at Kepler Center to celebrate the first plastic film bale prepared by the new baler.
Members of the Sustainability Committee gather at Kepler Center to celebrate the first plastic film bale prepared by the new baler.

“All of this would have gone to the landfill if we hadn’t set up this program,” Katelyn says. “It feels good to know that at least some of my waste is getting a second life.”

Plastic film is notoriously difficult to recycle and takes decades to break down in a landfill. The Promega initiative to divert this waste was started by a small group of employees who noticed a problem and worked for over a year to build a sustainable solution. What began as a small volunteer operation grew to spur capital investment in a process that will rescue around 35,000 pounds of plastic per year.

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Raising Frogs Takes a Village: Accelerating Amphibian Research at the Marine Biological Laboratory

Sally Seraphin and her students Maliah Ryan (second from right) and Jude Altman (right) work with a Promega Applications Scientist at the Marine Biological Laboratory

Sally Seraphin’s life in the research lab started with rats and roseate terns. Chimpanzees and rhesus macaques came next, then humans (and a brief foray into voles). When she pivoted to red-eyed tree frogs, Sally once again had to learn all kinds of new techniques. Suddenly, in addition to new sample prep and analysis techniques, she needed to get up to speed on amphibian care and husbandry. That led her to the Marine Biological Laboratory (MBL) in Woods Hole, MA.

“It’s a seaside resort atmosphere with experts in every technology you can imagine,” Sally says. “It’s a place to incubate and birth new approaches to answering questions.”

Sally spent the past two summers at MBL learning everything she needed to know about breeding and caring for amphibians. During that time, she also worked closely with Applications Scientists from Promega who helped her start extracting RNA from frog samples.

“The hands-on support from industry scientists is definitely unique to Promega and MBL,” she says. “It’s rare to have a specialist on hand who can help you learn, troubleshoot and optimize in such a finite amount of time.”

Adopting a New Model Organism

Sally uses red-eyed tree frogs to study early stress and developmental timing.
Sally uses red-eyed tree frogs to study early stress and developmental timing. Photo from Wikimedia.

Sally studies how early stress impacts brain and behavior development. She hopes to deepen our understanding of how adverse childhood experiences connect to mental illness and bodily disease later in life. In the past, she studied how factors such as parental absence affected the neurotransmission of dopamine in primates. Recently, she changed her focus to developmental timing.  

“Girls who are exposed to early trauma like sexual or physical abuse will sometimes reach puberty earlier than girls who aren’t,” Sally explains. “And I noticed that there are many species that will alter their developmental timing in response to predators or social and ecological threats.”

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Coral, Ferrets and a Lot of Elephant Poop: 5 Years of the Revive & Restore Catalyst Science Fund

“We are expanding the toolkit available for conservation,” says Bridget Baumgartner, Director of Research and Development at Revive & Restore. “We’re a technology-focused organization with a network of technology experts – we’re here to help make researchers in this space as successful as possible.”

Bridget manages the Catalyst Science Fund for the non-profit Revive & Restore. This program has awarded more than 70 grants to researchers applying biotechnology tools in a unique way to support genetic rescue of endangered or extinct species. The fund was launched in 2018 with a $3 million pledge from Promega, and this year celebrated its fifth anniversary. In that time, projects supported by the Catalyst Science Fund have cloned a black footed ferret, developed methods for analyzing population genetics of isolated elephant herds, and much more.

“The donation from Promega enabled us to demonstrate that this long-term ‘Go Big or Go Home’ approach can create new capabilities that are going to be high-impact for wildlife conservation,” Bridget says.

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The R&D Flex Team: A Unique Research Scientist Opportunity

Sarah Mahan embraces change. In fact, she doesn’t just embrace it, she seeks it out, running towards change with arms wide open. 

“If I could do a different thing every week, I would. That’s what my job would be.”

Sarah made her dream a reality when she began leading the Promega R&D Flex Team. This group of diverse research scientists moves around Kornberg Center, contributing resources to accelerate the development of technologies like Lumit Immunoassays and PowerPlex chemistry. They don’t specialize in any field or technology, but rather are constantly challenged to learn new skills quickly. Everywhere they go, they help R&D teams generate more data, answer more questions, and deliver results in less time.

“In short,” Sarah says, “we’re helping research teams make better products, faster.”

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