Harvey Itano Explained

Harvey Akio Itano
Birth Date:3 November 1920
Birth Place:Sacramento, California
Death Place:La Jolla, California
Fields:Biochemistry
Workplaces:
Alma Mater:University of California, Berkeley, St. Louis University, California Institute of Technology
Thesis Title:I. Contributions to the Study of Sickle Cell Hemoglobin II. A Rapid Diagnostic Test for Sickle Cell Anemia
Thesis Url:https://resolver.caltech.edu/CaltechETD:etd-02222007-084824
Thesis Year:1950
Doctoral Advisor:Linus Pauling
Known For:Differentiating normal and sickle cell hemoglobins
Awards:Eli Lilly Award in Biological Chemistry (1954)
Martin Luther King Jr. Medical Achievement Award

Harvey Akio Itano (Japanese: ハーベイ・アキオ・イタノ[1], November 3, 1920 – May 8, 2010) was an American biochemist best known for his work on the molecular basis of sickle cell anemia and other diseases. In collaboration with Linus Pauling, Itano used electrophoresis to demonstrate the difference between normal hemoglobin and sickle cell hemoglobin; their 1949 paper "Sickle Cell Anemia, a Molecular Disease" (coauthored also with S. J. Singer and Ibert C. Wells)[2] was a landmark in both molecular medicine and protein electrophoresis, though the use of electrophoresis to separate hemoglobin variants had been pioneered by Maud Menten and collaborators some years earlier.[3]

In 1979, Itano became the first Japanese American elected to the United States National Academy of Sciences (in the Genetics section). Itano was an emeritus professor of pathology at the University of California, San Diego.[4] In 2010, Itano died of complications from Parkinson's disease in La Jolla, California.[5]

Early life

Itano was born in Sacramento, California. Itano attended the University of California, Berkeley where he was valedictorian of the Class of 1942.[6] However, due to Executive Order 9066, Itano missed commencement in Berkeley after he and his family were sent to the Tanforan Assembly center, prior to being sent to the Tule Lake internment camp.[7] Itano was later allowed to leave camp to attend the St. Louis University medical school, earning his M.D. in 1945. He then went to graduate school at the California Institute of Technology, where he received doctorates in chemistry and physics in 1950.[8]

Research

While at Caltech, Itano joined the lab of Linus Pauling and began working on sickle cell anemia, a genetic disease that Pauling was interested in.[4] Pauling was convinced that sickle cell disease was caused by defective hemoglobin, and set Itano to find out what made sickle cell hemoglobin chemically different.[9] After failing with a number of other techniques, Itano succeeded in differentiating normal and sickle cell hemoglobins using moving boundary electrophoresis.[10] He used an apparatus designed by Stanley M. Swingle, a variation on the original apparatus of electrophoresis pioneer Arne Tiselius.[11] He found that, under certain conditions, sickle cell hemoglobin is positively charged while normal hemoglobin is not, creating a difference in electrophoretic mobility.[9] By 1956, Vernon Ingram had determined that this was caused by a single difference in peptide sequence,[12] which by 1958 he determined to be a valine in the sickle cell mutant hemoglobin in place of glutamic acid in normal hemoglobin A.[13]

Itano's subsequent work brought the new field of "molecular medicine" to other genetic and blood diseases. In 1954, he won the Eli Lilly Award in Biological Chemistry, and in 1972 he won the Martin Luther King Jr. Medical Achievement Award, recognizing his sickle cell work.[10]

External links

Notes and References

  1. Transcription from Japanese version of the article.
  2. 110. 2865. 543–548. Pauling. Linus . Harvey A. Itano . S. J. Singer . Ibert C. Wells . Sickle Cell Anemia, a Molecular Disease. Science. 1949-11-01. 1949Sci...110..543P. 10.1126/science.110.2865.543. 15395398. 31674765.
  3. Andersch . M. A. . Wilson . D. A. . Menten . M. L. . 1944 . Sedimentation constants and electrophoretic mobilities of adult and fetal carbonylhemoglobin . J. Biol. Chem. . 153 . 301–305 . 10.1016/S0021-9258(18)51237-0 . free .
  4. K. W. Lee. "Remarkable Parents Who Raised Remarkable Family." Sacramento Union, June 25, 1979. Reprint from the Nichi Bei Times accessed August 25, 2008.
  5. Web site: In Memoriam: UC San Diego Pathology Professor Harvey Itano, MD, PhD, 1920-2010. 2010-06-08. dead. https://web.archive.org/web/20110629194958/http://health.ucsd.edu/news/2010/5-11-itano-obit.htm. 2011-06-29.
  6. Web site: Doolittle . Russell F.. Biographical Memoirs: Harvey Itano 1920-2010. 2014.
  7. Book: Weglyn, Michi Nishiura . Michi Weglyn

    . Years of Infamy: The Untold Story of America's Concentration Camps . William Morrow & Company . New York . Michi Weglyn. 1976 . 108. 978-0688079963.

  8. News: Maugh II . Thomas H. . Harvey Itano dies at 89; researcher whose studies provided a breakthrough on sickle cell disease . . June 12, 2010 .
  9. Ted Goertzel and Ben Goertzel. Linus Pauling: A Life in Science and Politics. New York:BasicBooks, 1995. p. 90
  10. "The Register of Harvey Itano Papers 1946 - 2000 ", MSS 0226, Mandeville Special Collections Library, Geisel Library, University of California, San Diego. Accessed August 25, 2008.
  11. 18. 2. 128–132. Swingle. Stanley M.. An Electrophoresis Apparatus Using Parabolic Mirrors. Review of Scientific Instruments. 2008-08-25. February 1947. 10.1063/1.1740898. 20288558. 1947RScI...18..128S. dead. https://archive.today/20120711003130/http://link.aip.org/link/?RSI/18/128/1. 2012-07-11. subscription.
  12. 10.1038/178792a0. 178. 4537. 792–794. Ingram. V. M.. A Specific Chemical Difference Between the Globins of Normal Human and Sickle-Cell Anaemia Haemoglobin. Nature. 1956-10-13. 13369537. 1956Natur.178..792I . 4167855.
  13. 13560404. 28. 3. 539–45. Ingram. V M. Abnormal human haemoglobins. I. The comparison of normal human and sickle-cell haemoglobins by fingerprinting. Biochimica et Biophysica Acta. June 1958. 10.1016/0006-3002(58)90516-X.