Rockefeller University: Timeline of key events

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Northrop shared the 1946 Nobel Prize for Chemistry for helping to develop the technique for purifying and crystallising enzymes and virus proteins. His work showed that enzymes obey the laws of chemical reactions and that they are proteins. In 1930 he crystallised pepsin, an enzyme present in gastric juice necessary for digestion. Eight years later he isolated the first bacterial virus (bacteriophage). This he proved to be a nucleoprotein. Other enzymes that he managed to isolate and crystalise were trypsin and chymotrypsin, both important to the digestive process. 1987-05-27T00:00:00+0000Heidelberger was one of the founders of immunochemistry, a branch of biochemistry that investigates the mammalian immune system at the molecular level. He first made his mark in 1923 when he found, with Oswald Avery, that the immune system could target bacterial sugars. The two scientists made the discovery while investigating a capsular substance that envelops pneumococcus and other species of bacteria. Their work helped determine that antibodies were proteins. It also paved the way to improving the production of more effective serum therapies for the prevention of bacterial infectious like pneumonia and meningitis.1991-06-25T00:00:00+0000A geneticist by training, Sager enjoyed two careers. She first made her mark in the 1950s and 1950s when she discovered the transmission of genetic traits through chloroplast DNA. This was the first example of genetics not involving the cell nucleus. Later on, in the early 1970s, she became a major pioneer in cancer genetics. She was one of the first to propose and investigate the function of tumour suppressor genes. 1997-03-29T00:00:00+0000Daly trained as a biochemist and was the first Black American woman to earn a doctorate in chemistry (from Columbia University, 1947). Her early research looked at the effects of cholesterol on the mechanisms of the heart, the effects sugars and other nutrients on the health of the arteries and the impact of advanced aged and hypertension on the circulatory system. This she did at Rockefeller Institute in New York. She subsequently joined Columbia University where she investigated how proteins are produced and organised in the cell. In addition to her scientific work, Daly was an ardent campaigner for getting minority students into medical school and graduate science programmes.2003-10-28T00:00:00+0000Chase was an American immunologist who in the early 1940s discovered that white blood cells trigger the immune response in the body confronting a foreign invader. His finding laid to rest the belief that antibodies by themselves could protect the body from allergies and pathogens. Chase also uncovered the second arm of the immune system, known as cell-mediated immunity, paving the way to the discovery of lymphocyte cells and B and T cells.2004-01-05T00:00:00+0000Merrifield was an American biochemist and organic chemist. In 1984 he was awarded the Nobel Prize for Chemistry for inventing a process known as solid phase peptide synthesis. He developed the technique in 1965. It provided a methodology for chemical synthesis on a solid matrix. By the mid-1960s he and his team had proved the method could be used to synthesise bradykinin, angiotensin, desamino-oxytocin and insulin. In 1969 they managed to synthesise the enzyme, ribonuclease A. This was the first proof of the chemical nature of enzymes. Merrifield's method is now a rountine method for automatically synthesising large proteins, novel nucleotides, or short fragments of DNA. 2006-05-14T00:00:00+0000Palade was a Romanian-American cell biologist who helped determine cell function and organisation. He and his colleagues demonstrated that all plant cells and some animal and bacteria cells have a vacuole, an enclosed compartment in the cell membrane, which contains enzymes essential to maintaining the cell's health. In 1974 he was awarded the Nobel Prize in Physiology and Medicine for his innovations in electron microscopy and cell fractionation, which laid the foundation for molecular cell biology, and his discovery of the ribosomes of endoplastic reticulum in 1955. 2008-10-07T00:00:00+0000Zinder was an American biologist who discovered how hereditary information is transferred from one organism to another. The process is known as genetic transduction and is important to the spread of antimicrobial resistanmce. Carrying out experiments with the bacteria species Salmonella, Zinder discovered that bacteriophages, a type of virus, carry genes from one bacterium to another. He did the work with Joshua Lederberg, his doctoral supervisor. 2012-02-03T00:00:00+0000D. Bikard, L A Marrafini, 'Control of gene expression by CRISPR-Cas systems', F1000Prime Rep, 5 (2013) 47. 2013-02-01T00:00:00+0000de Duve was a cytologist and biochemist. The son of Belgian refugees who fled to England during World War I, de Duve is associated with the discovery of peroxisome and lysosome in the 1950s and 1960s. They are two specialised subunits found within the cell and are vital to the function of the cell. His work paved the way to unravelling the biology of several genetic diseases. He was awarded the Nobel Prize for Medicine in 1974 on the back of his 'discoveries concerning the structural and functional organisation of the cell.'2013-05-04T00:00:00+0000Edelman was an American biologist renowned for his research on antibodies, the body's defense against harmful foreign substances like viruses and bacteria. His research helped determine the chemical structure of antibodies in the early 1960s. It showed that antibodies were made up of two light and heavy chains linked together by disulfide bonds. The breakthrough immediately galvanised feverish activity in all fields of immunological science, paving the way to the development of antibodies for both diagnostics and therapy. Edelman was awarded the Nobel Prize for Medicine in 1972 for his work. 2014-05-17T00:00:00+0000
Date Event People Places Sciences
May 1987John H Northrop diedNorthropRockefeller Institute Biochemistry
25 Jun 1991Michael Heidelberger died in New York City, USAHeidelbergerRockefeller Institute, Columbia UniversityAntibodies, Immunology
29 Mar 1997Ruth Sager diedSagerRockefeller UniversityGenetics, Oncology
28 Oct 2003Marie M Daly diedMary DalyRockefeller Institute, Columbia UniversityBiochemistry, Cardiovascular
5 Jan 2004Merrill W Chase diedChaseRockefeller UniversityAntibodies, Immunology
14 May 2006Robert Bruce Merrifield diedMerrifieldRockefeller InstituteBiochemistry
7 Oct 2008George E Palade diedPaladeRockefeller UniversityCell
3 Feb 2012Norton David Zinder diedZinderRockefeller UniversityGenetics, Antimicrobial resistance
Feb 2013CRISPR-Cas shown to programme repression and activation of gene transcription Bikard, MurrafiniRockefeller UniversityCRISPR-Cas9, Gene editing
4 May 2013Christian Rene de Duve diedde DuveRockefeller University, Leuven UniversityCell
17 May 2014Gerald M Edelman diedEdelmanRockefeller UniversityAntibodies, Immunology

17 May 2014

John H Northrop died

25 Jun 1991

Michael Heidelberger died in New York City, USA

29 Mar 1997

Ruth Sager died

28 Oct 2003

Marie M Daly died

5 Jan 2004

Merrill W Chase died

14 May 2006

Robert Bruce Merrifield died

7 Oct 2008

George E Palade died

3 Feb 2012

Norton David Zinder died

Feb 2013

CRISPR-Cas shown to programme repression and activation of gene transcription

4 May 2013

Christian Rene de Duve died

17 May 2014

Gerald M Edelman died

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