Phillip Allen Sharp: The Nobel Laureate Who Revolutionized Our Understanding of RNA

The Discovery that Changed the Game

Phillip Allen Sharp is an American geneticist and molecular biologist renowned for his groundbreaking discovery of RNA splicing, a process that has revolutionized our understanding of gene expression. Alongside Richard J. Roberts, Sharp was awarded the 1993 Nobel Prize in Physiology or Medicine for their seminal work, which revealed that genes in eukaryotes are not contiguous strings but contain introns, and that the splicing of messenger RNA to delete those introns can occur in different ways, yielding different proteins from the same DNA sequence.

Early Life and Education

Born on June 6, 1944, in Falmouth, Kentucky, Sharp grew up with a passion for science. He pursued his undergraduate studies at Union College, majoring in chemistry and mathematics, and later earned his Ph.D. in chemistry from the University of Illinois at Urbana-Champaign in 1969.

Postdoctoral Training and Academic Career

Following his Ph.D., Sharp undertook postdoctoral training at the California Institute of Technology, where he studied plasmids. He then joined the Cold Spring Harbor Laboratory as a senior scientist under James D. Watson, focusing on gene expression in human cells. In 1974, he was offered a position at MIT by biologist Salvador Luria, where he would go on to hold various prestigious roles, including director of the Center for Cancer Research (now the Koch Institute for Integrative Cancer Research) from 1985 to 1991, head of the Biology department from 1991 to 1999, and founder and director of the McGovern Institute for Brain Research from 2000 to 2004.

Current Research and Contributions

Sharp's current research focuses on small RNAs and other types of noncoding RNAs. His laboratory has made significant strides in identifying the target mRNAs of microRNAs (miRNAs) and discovering a class of miRNAs produced from sequences adjacent to transcription start sites. His team also explores how miRNA gene regulation functions in angiogenesis and cellular stress.

Awards and Honors

In addition to the Nobel Prize, Sharp has received numerous awards and honors for his contributions to science. These include the 2015 Othmer Gold Medal and membership in the National Academy of Sciences, the American Academy of Arts and Sciences, and the American Philosophical Society.

Influence on Modern Society

Sharp's discovery of RNA splicing has far-reaching implications for our understanding of gene expression and its role in human health and disease. His work has paved the way for the development of new therapeutic strategies, including RNA-based therapies for cancer and other diseases.

Personal Milestones and Key Life Events

Sharp married Ann Holcombe in 1964, and they have three daughters together. In 1995, he received a letter from Ted Kaczynski, also known as the Unabomber, which hinted that Sharp would become a target due to his work in genetics.

Legacy

Phillip Allen Sharp's groundbreaking discovery of RNA splicing has left an indelible mark on the scientific community. His work has inspired generations of researchers and has opened up new avenues for understanding the intricacies of gene expression. As a testament to his legacy, Sharp's discovery continues to shape our understanding of human health and disease, and his contributions to science will be remembered for years to come.