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Rosalind Elsie Franklin (25 July 1920 – 16 April 1958)[1] was an English chemist and X-ray crystallographer whose work was central to the understanding of the molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite.[2] Although her works on coal and viruses were appreciated in her lifetime, her contributions to the discovery of the structure of DNA were largely recognised posthumously.
Born to a prominent British Jewish family, Franklin was educated at a private day school at Norland Place in West London, Lindores School for Young Ladies in Sussex, and St Paul's Girls' School, London. Then she studied the Natural Sciences Tripos at Newnham College, Cambridge, from which she graduated in 1941. Earning a research fellowship, she joined the University of Cambridge physical chemistry laboratory under Ronald George Wreyford Norrish, who disappointed her for his lack of enthusiasm.[3] The British Coal Utilisation Research Association (BCURA) offered her a research position in 1942, and started her work on coals. This helped her earn a Ph.D. in 1945.[4] She went to Paris in 1947 as a chercheur (post-doctoral researcher) under Jacques Mering at the Laboratoire Central des Services Chimiques de l'Etat, where she became an accomplished X-ray crystallographer. She became a research associate at King's College London in 1951 and worked on X-ray diffraction studies, which would eventually facilitate the double helix theory of the DNA.[5] In 1953, after two years, owing to disagreement with her director John Randall and more so with her colleague Maurice Wilkins, she was compelled to move to Birkbeck College.[5] At Birkbeck, John Desmond Bernal, chair of the physics department, offered her a separate research team. She died in 1958 at the age of 37 of ovarian cancer.
Franklin is best known for her work on the X-ray diffraction images of DNA, particularly Photo 51, while at King's College London, which led to the discovery of the DNA double helix for which James Watson, Francis Crick and Maurice Wilkins shared the Nobel Prize in Physiology or Medicine in 1962. Watson suggested that Franklin would have ideally been awarded a Nobel Prize in Chemistry, along with Wilkins, but, although there was not yet a rule against posthumous awards,[6] the Nobel Committee generally does not make posthumous nominations.[7][8]
After finishing her work on DNA, Franklin led pioneering work at Birkbeck on the molecular structures of viruses.[9] Her team member Aaron Klug continued her research, winning the Nobel Prize in Chemistry in 1982.
Born to a prominent British Jewish family, Franklin was educated at a private day school at Norland Place in West London, Lindores School for Young Ladies in Sussex, and St Paul's Girls' School, London. Then she studied the Natural Sciences Tripos at Newnham College, Cambridge, from which she graduated in 1941. Earning a research fellowship, she joined the University of Cambridge physical chemistry laboratory under Ronald George Wreyford Norrish, who disappointed her for his lack of enthusiasm.[3] The British Coal Utilisation Research Association (BCURA) offered her a research position in 1942, and started her work on coals. This helped her earn a Ph.D. in 1945.[4] She went to Paris in 1947 as a chercheur (post-doctoral researcher) under Jacques Mering at the Laboratoire Central des Services Chimiques de l'Etat, where she became an accomplished X-ray crystallographer. She became a research associate at King's College London in 1951 and worked on X-ray diffraction studies, which would eventually facilitate the double helix theory of the DNA.[5] In 1953, after two years, owing to disagreement with her director John Randall and more so with her colleague Maurice Wilkins, she was compelled to move to Birkbeck College.[5] At Birkbeck, John Desmond Bernal, chair of the physics department, offered her a separate research team. She died in 1958 at the age of 37 of ovarian cancer.
Franklin is best known for her work on the X-ray diffraction images of DNA, particularly Photo 51, while at King's College London, which led to the discovery of the DNA double helix for which James Watson, Francis Crick and Maurice Wilkins shared the Nobel Prize in Physiology or Medicine in 1962. Watson suggested that Franklin would have ideally been awarded a Nobel Prize in Chemistry, along with Wilkins, but, although there was not yet a rule against posthumous awards,[6] the Nobel Committee generally does not make posthumous nominations.[7][8]
After finishing her work on DNA, Franklin led pioneering work at Birkbeck on the molecular structures of viruses.[9] Her team member Aaron Klug continued her research, winning the Nobel Prize in Chemistry in 1982.
Rosalind Franklin - Wikipedia
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25 Minute Rosalind Franklin Biography DNA: Secret of Photo 51
This is a 25 minute of the PBS Nova documentary DNA: The Secret of Photo 51. This video cuts interviews and aspects of the documentary in order to tell the m...
Thank you my friend Maj Marty Hogan for making us aware that July 25 is the anniversary of the birth of English chemist and X-ray crystallographer Rosalind Elsie Franklin who made contributions to the understanding of the molecular structures of DNA (deoxyribonucleic acid), RNA (ribonucleic acid), viruses, coal, and graphite.
She died before the team she worked with was awarded the Nobel Physiology or Medicine was awarded to James Watson, Francis Crick, and Maurice Wilkins for solving the structure of DNA.
Rest in peace Rosalind Elsie Franklin.
Background from .dnaftb.org/19/bio-3.html
"Rosalind Franklin (1920-1958)
Rosalind Elsie Franklin was born in London, England. Her family was well-to-do and both sides were very involved in social and public works. Franklin's father wanted to be a scientist, but World War I cut short his education and he became a college teacher instead. Rosalind Franklin was extremely intelligent and she knew by the age of 15 that she wanted to be a scientist. Her father actively discouraged her interest since it was very difficult for women to have such a career. However, with her excellent education from St. Paul's Girls' School ? one of the few institutions at the time that taught physics and chemistry to girls ? Franklin entered Cambridge University in 1938 to study chemistry.
When she graduated, Franklin was awarded a research scholarship to do graduate work. She spent a year in R.G.W. Norrish's lab without great success. Norrish recognized Franklin's potential but he was not very encouraging or supportive toward his female student. When offered the position as an assistant research officer at the British Coal Utilization Research Association (CURA), Franklin gave up her fellowship and took the job.
CURA was a young organization and there was less formality on the way research had to be done. Franklin worked fairly independently, a situation that suited her. Franklin worked for CURA until 1947 and published a number of papers on the physical structure of coal.
Franklin's next career move took her to Paris. An old friend introduced her to Marcel Mathieu who directed most of the research in France. He was impressed with Franklin's work and offered her a job as a "chercheur" in the Laboratoire Central des Services Chimiques de l'Etat. Here she learned X-ray diffraction techniques from Jacques Mering.
In 1951, Franklin was offered a 3-year research scholarship at King's College in London. With her knowledge, Franklin was to set up and improve the X-ray crystallography unit at King's College. Maurice Wilkins was already using X-ray crystallography to try to solve the DNA problem at King's College. Franklin arrived while Wilkins was away and on his return, Wilkins assumed that she was hired to be his assistant. It was a bad start to a relationship that never got any better.
Working with a student, Raymond Gosling, Franklin was able to get two sets of high-resolution photos of crystallized DNA fibers. She used two different fibers of DNA, one more highly hydrated than the other. From this she deduced the basic dimensions of DNA strands, and that the phosphates were on the outside of what was probably a helical structure.
She presented her data at a lecture in King's College at which James Watson was in attendance. In his book The Double Helix, Watson admitted to not paying attention at Franklin's talk and not being able to fully describe the lecture and the results to Francis Crick. Watson and Crick were at the Cavendish Laboratory and had been working on solving the DNA structure. Franklin did not know Watson and Crick as well as Wilkins did and never truly collaborated with them. It was Wilkins who showed Watson and Crick the X-ray data Franklin obtained. The data confirmed the 3-D structure that Watson and Crick had theorized for DNA. In 1953, both Wilkins and Franklin published papers on their X-ray data in the same Nature issue with Watson and Crick's paper on the structure of DNA.
Franklin left Cambridge in 1953 and went to the Birkbeck lab to work on the structure of tobacco mosaic virus. She published a number of papers on the subject and she actually did a lot of the work while suffering from cancer. She died from cancer in 1958.
In 1962, the Nobel Prize in Physiology or Medicine was awarded to James Watson, Francis Crick, and Maurice Wilkins for solving the structure of DNA. The Nobel committee does not give posthumous prizes."
25 Minute Rosalind Franklin Biography DNA: Secret of Photo 51
"This is a 25 minute of the PBS Nova documentary DNA: The Secret of Photo 51. This video cuts interviews and aspects of the documentary in order to tell the most streamlined version of Dr. Rosalind Franklin's contributions to the discovery of the structure of DNA, and here unwilling collaboration with Dr. James Watson and Dr. Francis Crick."
https://www.youtube.com/watch?v=vlSENaTR3NI
FYI ]SFC Francisco Rosario1SG James MatthewsLTC Stephan Porter777197:CPT William Fleenor] MSgt David HoffmanSgt (Join to see)SFC (Join to see)LTC (Join to see)Sgt John H.1sg-dan-capriSGT Robert R.CPT Tommy CurtisSGT (Join to see) SGT Steve McFarlandCol Carl WhickerSGT Mark AndersonCW4 Craig UrbanSSG Michael NollSFC(P) (Join to see)
She died before the team she worked with was awarded the Nobel Physiology or Medicine was awarded to James Watson, Francis Crick, and Maurice Wilkins for solving the structure of DNA.
Rest in peace Rosalind Elsie Franklin.
Background from .dnaftb.org/19/bio-3.html
"Rosalind Franklin (1920-1958)
Rosalind Elsie Franklin was born in London, England. Her family was well-to-do and both sides were very involved in social and public works. Franklin's father wanted to be a scientist, but World War I cut short his education and he became a college teacher instead. Rosalind Franklin was extremely intelligent and she knew by the age of 15 that she wanted to be a scientist. Her father actively discouraged her interest since it was very difficult for women to have such a career. However, with her excellent education from St. Paul's Girls' School ? one of the few institutions at the time that taught physics and chemistry to girls ? Franklin entered Cambridge University in 1938 to study chemistry.
When she graduated, Franklin was awarded a research scholarship to do graduate work. She spent a year in R.G.W. Norrish's lab without great success. Norrish recognized Franklin's potential but he was not very encouraging or supportive toward his female student. When offered the position as an assistant research officer at the British Coal Utilization Research Association (CURA), Franklin gave up her fellowship and took the job.
CURA was a young organization and there was less formality on the way research had to be done. Franklin worked fairly independently, a situation that suited her. Franklin worked for CURA until 1947 and published a number of papers on the physical structure of coal.
Franklin's next career move took her to Paris. An old friend introduced her to Marcel Mathieu who directed most of the research in France. He was impressed with Franklin's work and offered her a job as a "chercheur" in the Laboratoire Central des Services Chimiques de l'Etat. Here she learned X-ray diffraction techniques from Jacques Mering.
In 1951, Franklin was offered a 3-year research scholarship at King's College in London. With her knowledge, Franklin was to set up and improve the X-ray crystallography unit at King's College. Maurice Wilkins was already using X-ray crystallography to try to solve the DNA problem at King's College. Franklin arrived while Wilkins was away and on his return, Wilkins assumed that she was hired to be his assistant. It was a bad start to a relationship that never got any better.
Working with a student, Raymond Gosling, Franklin was able to get two sets of high-resolution photos of crystallized DNA fibers. She used two different fibers of DNA, one more highly hydrated than the other. From this she deduced the basic dimensions of DNA strands, and that the phosphates were on the outside of what was probably a helical structure.
She presented her data at a lecture in King's College at which James Watson was in attendance. In his book The Double Helix, Watson admitted to not paying attention at Franklin's talk and not being able to fully describe the lecture and the results to Francis Crick. Watson and Crick were at the Cavendish Laboratory and had been working on solving the DNA structure. Franklin did not know Watson and Crick as well as Wilkins did and never truly collaborated with them. It was Wilkins who showed Watson and Crick the X-ray data Franklin obtained. The data confirmed the 3-D structure that Watson and Crick had theorized for DNA. In 1953, both Wilkins and Franklin published papers on their X-ray data in the same Nature issue with Watson and Crick's paper on the structure of DNA.
Franklin left Cambridge in 1953 and went to the Birkbeck lab to work on the structure of tobacco mosaic virus. She published a number of papers on the subject and she actually did a lot of the work while suffering from cancer. She died from cancer in 1958.
In 1962, the Nobel Prize in Physiology or Medicine was awarded to James Watson, Francis Crick, and Maurice Wilkins for solving the structure of DNA. The Nobel committee does not give posthumous prizes."
25 Minute Rosalind Franklin Biography DNA: Secret of Photo 51
"This is a 25 minute of the PBS Nova documentary DNA: The Secret of Photo 51. This video cuts interviews and aspects of the documentary in order to tell the most streamlined version of Dr. Rosalind Franklin's contributions to the discovery of the structure of DNA, and here unwilling collaboration with Dr. James Watson and Dr. Francis Crick."
https://www.youtube.com/watch?v=vlSENaTR3NI
FYI ]SFC Francisco Rosario1SG James MatthewsLTC Stephan Porter777197:CPT William Fleenor] MSgt David HoffmanSgt (Join to see)SFC (Join to see)LTC (Join to see)Sgt John H.1sg-dan-capriSGT Robert R.CPT Tommy CurtisSGT (Join to see) SGT Steve McFarlandCol Carl WhickerSGT Mark AndersonCW4 Craig UrbanSSG Michael NollSFC(P) (Join to see)
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