genomics

IRP’s Eugene Koonin Elected to National Academy of Medicine

Scientist Decoded DNA to Build a Genomic Tree of Life

Dr. Eugene Koonin

In 1973, the geneticist Theodosius Dobzhansky wrote a now-famous essay that declared, “Nothing in biology makes sense except in the light of evolution.” That sentiment has served as the guiding principle for the career of IRP senior investigator Eugene V. Koonin, Ph.D., who was elected to the National Academy of Medicine (NAM) in October 2022 for his contributions to the field of evolutionary biology.

Dr. Koonin’s pioneering efforts to identify clusters of similar genes found in different organisms passed down by a common ancestor — known as ‘homologous’ genes — has helped to unlock the secrets encoded in DNA and create a foundation for the systematic study of how genes evolve and function. His lab at the National Library of Medicine’s National Center for Biotechnology Information (NCBI) uses a combination of genomic sequencing and mathematical modeling to compare genes across species and determine how they work and where they came from. From this information, his team can develop a systematic framework to show the relationship between genes as they evolved. It’s like drawing the tree of life, but on a genomic scale.

IRP’s Julie Segre Elected to the National Academy of Medicine

NIH Researcher Recognized for Investigation into the Skin Microbiome

Dr. Julie Segre

The National Academy of Medicine (NAM), first established in 1970 by the National Academy of Sciences as the Institute of Medicine (IOM), is comprised of more than 2,000 elected members from around the world who provide scientific and policy guidance on important matters relating to human health. Election to the NAM is considered one of the highest honors in the fields of health and medicine that recognizes individuals who have not only made critical scientific discoveries but have also demonstrated a laudable commitment to public service.

IRP senior investigator Julie Segre, Ph.D., was one of four IRP researchers elected to the NAM in 2019. Dr. Segre leads the Translational and Functional Genomics Branch at the National Human Genome Research Institute (NHGRI), where she studies the way in which the skin forms a barrier between the body and the environment. In particular, her research uses genetic sequencing to understand the bacterial and fungal microbes that live on human skin.

The Virus vs the Machine

IRP Leverages Supercomputing to Combat Coronavirus

rows of computer servers

Over the past six months, a tiny virus has completely upended life in the United States and many other countries. To combat this microscopic threat, some IRP researchers have turned to a tool the size of a small building.

Biowulf, the NIH’s supercomputer, is supporting more than a dozen different IRP research projects focused on the novel coronavirus. As the world’s most powerful supercomputer solely dedicated to biomedical research, Biowulf allows scientists to analyze data and run simulations at unprecedented speed. Two weeks ago, a blog post described how IRP investigators are using Biowulf to elucidate the structure of the novel coronavirus and simulate how potential therapeutics might interact with it. Picking up where that post left off, this blog will explore the application of Biowulf to important questions about the spread of COVID-19 and the way that its genes, along with our own, might influence its impact on the body.

The Social Side of Health

Understanding Social and Behavioral Research in the IRP

social and behavioral science diagram

The NIH IRP is world-renowned for its high-risk, high-reward biomedical research. While the NIH may be best known for its clinical and biomedical research on topics from cancer to allergies to addiction, IRP investigators have also produced a rich body of work conducted in the area of social and behavioral research (SBR). In this post, I will describe how SBR furthers the NIH’s goals of improving human health with some examples of the excellent work done by SBR investigators in the IRP.

A New Understanding of What’s Living on Your Skin

Five Questions with Dr. Heidi Kong and Dr. Julia Segre

microbes within a human body

When people think of skin health, they often think of protecting it from harmful UV rays or finding ways to avoid the fine lines and wrinkles that often come with aging and sun exposure. However, there are many factors and illnesses that impact skin health, including eczema, a chronic condition that affects tens of millions of Americans and causes the skin to become red and so itchy that it can interfere with patients’ sleep.

To combat such conditions, IRP researchers have spent decades investigating what causes them in humans through techniques such as immunology, genetics, molecular biology, and structural biology. In a 2014 study of healthy volunteers, IRP investigators Julia Segre, Ph.D., and Heidi Kong, M.D., M.H.Sc., used the latest genomic techniques to investigate the collection of microorganisms living on healthy human skin, known as the skin microbiome, in an attempt to understand how this collection of bacteria, fungi, and viruses may contribute to skin health. From their interdisciplinary research, the team was able to show that the array of microbes living on human skin is extremely diverse, varying greatly from individual to individual and between different areas of the body. This research opened doors for additional studies exploring how changes in the skin microbiome contribute to both common and rare skin diseases.

Three Billion Base Pairs vs. One Powerful Computer

a stand of DNA

The human genome comprises roughly three billion base pairs and around 20,000 protein-coding genes, according to recent estimates. That’s a lot of information crammed into the tiny nucleus of a cell, and it doesn’t even include the many genes that do not produce a protein or the fact that most genes come in multiple flavors that vary in different individuals. Add to that the phenomenon of an identical gene being either more or less active in two different people and you can quickly end up with genomic datasets that would overload nearly any computer. Fortunately for IRP senior investigator Daniel Levy, M.D., the NIH IRP has one of the few computer systems in the world that can handle this mountain of information.

Francis Collins, NIH Director, Answers Reddit’s Genomics Questions

two young boys looking down at the genetic code

Ever since the Human Genome Project (HGP) launched in 1990, patients and members of the public have been inundated with predictions about how unraveling the mysteries of genetics will revolutionize healthcare. Today, many of these promises remain unrealized, prompting some to become skeptical of the true utility of this research for improving human health. But, while more work is needed to fully realize the potential of genome-focused medicine, it remains true that patients are benefiting from our knowledge of the human genome in numerous, sometimes under-appreciated ways.

Four NIH IRP Researchers Elected to National Academy of Medicine

NIH National Academy of Medicine 2016

This year, members of the National Academy of Medicine elected four NIH Intramural researchers to their ranks, one of the highest honors in science. Learn a bit about each of their research and follow the links to their IRP profiles for more information.

IRP Resources Pop Quiz: What Can We Do for Your Science?

As an “I Am Intramural” Blog reader, you likely know that the IRP is comprised of more than 6,000 scientists conducting basic, translational, and clinical research in more than 50 buildings on six different IRP campuses around the U.S.But, do you know the answers to the questions in the following IRP Pop Quiz?

Researchers at the NIH IRP have access to:

a) Laboratory equipment sales, rental, repairs, and maintenance
b) Plants and marine organisms for research
c) High-throughput DNA sequencing
d) A and C
e) All of the above

Learn the answer...

The Long Run

On Monday, January 26, about 150 people tackled the Arrowhead 135 ultramarathon, a race through 135 miles of frigid landscape near International Falls, Minnesota. They biked, ran, and skied for almost 70 hours in -30°F air to reach their goal.

winter runner