- Born:
- March 7, 1944, Kansas City, Missouri (age 82)
- Awards And Honors:
- Nobel Prize (2017)
- Subjects Of Study:
- Drosophila melanogaster
- fruit fly
- vinegar fly
- circadian rhythm
- period
Michael Rosbash
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Who is Michael Rosbash?
Michael Rosbash, born on March 7, 1944, is an American geneticist celebrated for his work on circadian rhythms, the 24-hour biological cycles affecting behavior. Working with fruit flies, Rosbash helped identify genes and molecular mechanisms that regulate these biological rhythms, which deepened the understanding of genetic influences on human physiology.
Rosbash received a Ph.D. from the Massachusetts Institute of Technology (MIT) and later joined the faculty at Brandeis University in 1974. There, he collaborated with Jeffrey C. Hall to isolate and sequence the period gene, which is critical to circadian rhythms.
In the 1990s, Rosbash and Hall elucidated the period gene's role, demonstrating how its protein product, PER, oscillates during the circadian cycle. This work led to the discovery of a self-regulating mechanism governing circadian rhythm. In 2017, Rosbash, Hall, and Michael W. Young were awarded the Nobel Prize for Physiology or Medicine for their discoveries.
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What is Michael Rosbash best known for?
Michael Rosbash, an American geneticist, is best known for his discoveries concerning circadian rhythm, the 24-hour cycle of biological activity that influences daily behavior. Working with fruit flies, Rosbash helped discover genes and molecular mechanisms regulating biological rhythms, with implications for understanding genetic influences on human physiological processes. In 1984, he and Jeffrey Hall successfully isolated and sequenced the period gene. Later, they discovered that PER protein levels oscillate during the circadian cycle, leading to a model of self-regulation. Rosbash was awarded the 2017 Nobel Prize in Physiology or Medicine along with Hall and Michael W. Young for these discoveries.
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What field of science does Michael Rosbash work in?
Michael Rosbash is an American geneticist known for his discoveries concerning circadian rhythm, the cyclical 24-hour period of biological activity that drives daily behavioral patterns. Rosbash's work primarily focuses on the influence of genetics on behavior. He worked extensively with the fruit fly Drosophila melanogaster, and he contributed to the discovery of genes and molecular mechanisms involved in the regulation of biological rhythms. His work has implications for understanding the influence of genetic cues on daily physiological processes in humans. Some geneticists specialize in the hereditary processes of human genetics. Most of the emphasis is on understanding and treating genetic disease and genetically influenced ill health, areas collectively known as medical genetics.
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What important discovery did Michael Rosbash make about biological clocks?
Michael Rosbash, an American geneticist, is renowned for his discoveries regarding circadian rhythm, the 24-hour cycle of biological activity. Working with fruit flies, Rosbash helped isolate and sequence the period gene in 1984.
In the 1990s, Rosbash and his colleague Jeffrey Hall discovered that the protein product, PER, oscillates during the circadian cycle, accumulating in cell nuclei overnight and degrading during the day. They proposed that PER is self-regulating, inhibiting its own transcription when its protein levels reach a critical point. Later, they found additional genes involved in regulating circadian rhythm, confirming that a self-regulating mechanism governs circadian rhythm. For these discoveries, Rosbash was awarded the 2017 Nobel Prize in Physiology or Medicine.
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How did Michael Rosbash's research help us understand sleep and daily rhythms?
Michael Rosbash's research, particularly his work with fruit flies, significantly advanced our understanding of circadian rhythm, the 24-hour cycle of biological activity that influences daily behaviors.
Rosbash, along with Jeffrey Hall, isolated and sequenced the period gene in 1984. Later, in the 1990s, they discovered that the protein product, PER, oscillates during the circadian cycle, accumulating in cell nuclei overnight and degrading during the day. Their findings suggested PER self-regulates by inhibiting its own transcription when protein levels reach a critical point. They also identified additional genes involved in regulating circadian rhythm.
Rosbash's work, along with others, helped confirm that a self-regulating clocklike mechanism governs circadian rhythm. Many human genes were later found to be regulated by a similar mechanism, providing new insights into human physiology.
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What major award did Michael Rosbash receive for his scientific work?
Michael Rosbash received the 2017 Nobel Prize for Physiology or Medicine for his discoveries concerning circadian rhythm, the 24-hour cycle of biological activity. He shared the prize with Jeffrey C. Hall and Michael W. Young. Rosbash and Hall's research focused on the period gene in fruit flies, revealing how its protein product, PER, regulates circadian rhythms. Their work, along with Young's, demonstrated a self-regulating mechanism governing these rhythms, which has implications for understanding human physiology. Rosbash also received the Gruber Prize in Neuroscience (2009), the Louisa Gross Horwitz Prize for Biology or Biochemistry (2011), and the Wiley Prize in Biomedical Sciences (2013).
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Michael Rosbash (born March 7, 1944, Kansas City, Missouri) is an American geneticist known for his discoveries concerning circadian rhythm, the cyclical 24-hour period of biological activity that drives daily behavioral patterns. Rosbash worked extensively with the fruit fly Drosophila melanogaster, and he contributed to the discovery of genes and molecular mechanisms involved in the regulation of biological rhythms. The work had far-reaching implications, particularly for understanding the influence of genetic cues on daily physiological processes in humans. For his discoveries, he was awarded the 2017 Nobel Prize for Physiology or Medicine (shared with Jeffrey C. Hall and Michael W. Young).
Rosbash was raised in Boston, where his mother worked in cytology and his father was a cantor. He studied chemistry at the California Institute of Technology, receiving a bachelor’s degree in 1965, and biophysics at the Massachusetts Institute of Technology (MIT), graduating with a Ph.D. in 1971. He joined the faculty at Brandeis University in Waltham, Massachusetts, as an assistant professor in 1974.
In the 1970s Rosbash became interested in the influence of genetics on behaviour and began a productive collaboration with Hall, a friend and colleague at Brandeis. Rosbash and Hall were interested in the so-called period gene, a gene that had been discovered a decade earlier to play a role in the regulation of circadian rhythm in Drosophila but that had not yet been isolated from the fruit fly genome. In 1984, at about the same time as Young, who was working independently at Rockefeller University in New York, Rosbash and Hall successfully isolated and sequenced the period gene.
In the 1990s Rosbash and Hall shed light on the mechanistic role of the period gene, showing that levels of the protein product, PER, oscillated during the circadian cycle, accumulating in cell nuclei overnight and being degraded through the day. Their findings led them to propose a model whereby PER was self-regulating, inhibiting its own transcription (synthesis of RNA from DNA) when its protein levels reached a critical point. Rosbash and Hall subsequently discovered additional genes involved in the regulation of the circadian rhythm. Their later work, along with that of Young and other researchers in the field, helped confirm the idea that a self-regulating clocklike mechanism governs circadian rhythm. A significant number of human genes were subsequently found to be regulated by a mechanism homologous to that described in Drosophila, leading to new insights into human physiology.
Rosbash received numerous honours throughout his career, including the Gruber Prize in Neuroscience (2009), the Louisa Gross Horwitz Prize for Biology or Biochemistry (2011), and the Wiley Prize in Biomedical Sciences (2013), all shared with Hall and Young. He was an elected member of the American Academy of Arts and Sciences (1997) and the National Academy of Sciences (2003).