G proteins, also known as guanine nucleotide-binding proteins, are a family of proteins that act as molecular switches inside cells, and are involved in transmitting signals from a variety of stimuli outside a cell to its interior. Their activity is regulated by factors that control their ability to bind to and hydrolyze guanosine triphosphate (GTP) to guanosine diphosphate (GDP). When they are bound to GTP, they are 'on', and, when they are bound to GDP, they are 'off'. G proteins belong to the larger group of enzymes called GTPases.
Edward Calvin Kendall was an American chemist. In 1950, Kendall was awarded the Nobel Prize for Physiology or Medicine along with Swiss chemist Tadeusz Reichstein and Mayo Clinic physician Philip S. Hench, for their work with the hormones of the adrenal gland. Kendall did not only focus on the adrenal glands, he was also responsible for the isolation of thyroxine, a hormone of the thyroid gland and worked with the team that crystallized glutathione and identified its chemical structure.
Ferid Murad was an American physician and pharmacologist, and a co-winner of the 1998 Nobel Prize in Physiology or Medicine.
Sir James Whyte Black was a Scottish physician and pharmacologist. Together with Gertrude B. Elion and George H. Hitchings, he shared the Nobel Prize for Medicine in 1988 for pioneering strategies for rational drug-design, which, in his case, lead to the development of propranolol and cimetidine. Black established a Veterinary Physiology department at the University of Glasgow, where he became interested in the effects of adrenaline on the human heart. He went to work for ICI Pharmaceuticals in 1958 and, while there, developed propranolol, a beta blocker used for the treatment of heart disease. Black was also responsible for the development of cimetidine, an H2 receptor antagonist, a drug used to treat stomach ulcers.
Martin Rodbell was an American biochemist and molecular endocrinologist who is best known for his discovery of G-proteins. He shared the 1994 Nobel Prize in Physiology or Medicine with Alfred G. Gilman for "their discovery of G-proteins and the role of these proteins in signal transduction in cells."
Thomas Robert Cech is an American chemist who shared the 1989 Nobel Prize in Chemistry with Sidney Altman, for their discovery of the catalytic properties of RNA. Cech discovered that RNA could itself cut strands of RNA, suggesting that life might have started as RNA. He found that RNA can not only transmit instructions, but also that it can speed up the necessary reactions.
Joseph Leonard Goldstein ForMemRS is an American biochemist. He received the Nobel Prize in Physiology or Medicine in 1985, along with fellow University of Texas Southwestern researcher, Michael Brown, for their studies regarding cholesterol. They discovered that human cells have low-density lipoprotein (LDL) receptors that remove cholesterol from the blood and that when LDL receptors are not present in sufficient numbers, individuals develop hypercholesterolemia and become at risk for cholesterol related diseases, notably coronary heart disease. Their studies led to the development of statin drugs.
Alfred Goodman Gilman was an American pharmacologist and biochemist. He and Martin Rodbell shared the 1994 Nobel Prize in Physiology or Medicine "for their discovery of G-proteins and the role of these proteins in signal transduction in cells."
James Edward Rothman is an American biochemist. He is the Fergus F. Wallace Professor of Biomedical Sciences at Yale University, the Chairman of the Department of Cell Biology at Yale School of Medicine, and the Director of the Nanobiology Institute at the Yale West Campus. Rothman also concurrently serves as adjunct professor of physiology and cellular biophysics at Columbia University and a research professor at the UCL Queen Square Institute of Neurology, University College London.
The Duke University School of Medicine, commonly known as Duke Med, is the medical school of Duke University. It is located in the Collegiate Gothic-style West Campus of Duke University in Durham, North Carolina. The School of Medicine, along with the Duke University School of Nursing, Duke University Hospital, Duke Regional Hospital, Duke Children's Hospital, Duke Raleigh Hospital, and other affiliated hospitals, clinics, and laboratories, make up the Duke University Health System. Established in 1925 by James B. Duke, the School of Medicine has earned its reputation as an integral part of one of the world's foremost patient care and biomedical research institutions.
The beta-2 adrenergic receptor, also known as ADRB2, is a cell membrane-spanning beta-adrenergic receptor that binds epinephrine (adrenaline), a hormone and neurotransmitter whose signaling, via adenylate cyclase stimulation through trimeric Gs proteins, increases cAMP, and, via downstream L-type calcium channel interaction, mediates physiologic responses such as smooth muscle relaxation and bronchodilation.
Paul Lawrence Modrich is an American biochemist, James B. Duke Professor of Biochemistry at Duke University and Investigator at the Howard Hughes Medical Institute. He is known for his research on DNA mismatch repair. Modrich received the Nobel Prize in Chemistry 2015, jointly with Aziz Sancar and Tomas Lindahl.
Brian Kent Kobilka is an American physiologist and a recipient of the 2012 Nobel Prize in Chemistry with Robert Lefkowitz for discoveries that reveal the workings of G protein-coupled receptors. He is currently a professor in the department of Molecular and Cellular Physiology at Stanford University School of Medicine. He is also a co-founder of ConfometRx, a biotechnology company focusing on G protein-coupled receptors. He was named a member of the National Academy of Sciences in 2011.
Martin J. Lohse is a German physician and pharmacologist.
Eric Newell Olson is an American molecular biologist. He is professor and chair of the Department of Molecular Biology at the University of Texas Southwestern Medical Center in Dallas, where he also holds the Robert A. Welch Distinguished Chair in Science, the Annie and Willie Nelson Professorship in Stem Cell Research, and the Pogue Distinguished Chair in Research on Cardiac Birth Defects.
Tasuku Honjo is a Japanese physician-scientist and immunologist. He won the 2018 Nobel Prize in Physiology or Medicine and is best known for his identification of programmed cell death protein 1 (PD-1). He is also known for his molecular identification of cytokines: IL-4 and IL-5, as well as the discovery of activation-induced cytidine deaminase (AID) that is essential for class switch recombination and somatic hypermutation.
Michel Bouvier is a Canadian biochemist and molecular pharmacologist. He is a professor of biochemistry and molecular medicine at Université de Montréal; a principal investigator and the chief executive officer at the Institute for Research in Immunology and Cancer; and an associate vice-president in Research, Scientific Discovery, Creation, and Innovation at Université de Montréal. His work focuses on the study of cell signaling towards the discovery of new pharmaceutical drugs.
William G. Kaelin Jr. is an American Nobel laureate physician-scientist. He is a professor of medicine at Harvard University and the Dana–Farber Cancer Institute. His laboratory studies tumor suppressor proteins. In 2016, Kaelin received the Albert Lasker Award for Basic Medical Research and the AACR Princess Takamatsu Award. He also won the Nobel Prize in Physiology or Medicine in 2019 along with Peter J. Ratcliffe and Gregg L. Semenza.
Arun Kumar Shukla is an Indian structural biologist and the Joy-Gill Chair professor at the department of biological sciences and bioengineering at the Indian Institute of Technology, Kanpur. Known for his studies on G protein-coupled receptor, Shukla is a Wellcome Trust-DBT Intermediate Fellow and a recipient of the SwarnaJayanti Fellowship of the Department of Science and Technology. The Department of Biotechnology of the Government of India awarded him the National Bioscience Award for Career Development, one of the highest Indian science awards, for his contributions to biosciences, in 2017/18. He received the 2021 Shanti Swarup Bhatnagar Prize for Science and Technology in Biological Science. He was awarded the Infosys Prize 2023 in Life Sciences his outstanding contributions to the biology of G-protein coupled receptors (GPCRs).
Lee Limbird is a pharmacologist, Dean of the School of Natural Science, Mathematics and Business & Professor in the Department of Life and Physical Sciences at Fisk University, Nashville, Tennessee.
