Video 15: Thomas Sakmar, clip 1

Thomas Sakmar is a professor at Rockefeller University. His lab works on the role of several proteins involved in photochemistry, specifically how protein structure is related to function. Dr. Sakmar has a personal interest in the work done by Phoebus Levene.

sakmar, protein structure, phoebus levene, photochemistry, personal interest, hypothesis, proteins

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16353. Video 15: Thomas Sakmar, clip 2

Phoebus Levene's contributions -- the distinction between DNA and RNA.

  • ID: 16353
  • Source: DNAFTB

16354. Video 15: Thomas Sakmar, clip 3

The work of Erwin Chargaff and how it contributed to the downfall of Levene's tetranucleotide theory.

  • ID: 16354
  • Source: DNAFTB

16355. Video 15: Thomas Sakmar, clip 4

Did Levene's tetranucleotide theory affect the development of ideas in the field of nucleic acid research?

  • ID: 16355
  • Source: DNAFTB

16357. Biography 15: Phoebus Aaron Theodor Levene (1869-1940)

Phoebus Levene was an organic chemist in the early 1900's. He is perhaps best known for his incorrect tetranucleotide hypothesis of DNA.

  • ID: 16357
  • Source: DNAFTB

15672. Phoebus Levene (c. 1930)

Phoebus Levene, circa 1930.

  • ID: 15672
  • Source: DNAi

16345. Gallery 15: Phoebus Aaron Theodor Levene, 1915

Phoebus Aaron Theodor Levene, 1915.

  • ID: 16345
  • Source: DNAFTB

16342. Animation 15: DNA and proteins are key molecules of the cell nucleus.

Friedrich Miescher and Phoebus Levene research nuclein, protein. and DNA.

  • ID: 16342
  • Source: DNALC.DNAFTB

16358. Problem 15: DNA and proteins are key molecules of the cell nucleus.

Explore tetranucleotide combinations.

  • ID: 16358
  • Source: DNALC.DNAFTB

16422. Animation 19: The DNA molecule is shaped like a twisted ladder.

James Watson and Francis Crick explain how they solved the structure of DNA. Erwin Chargaff explain how he measured the levels of each of the four nitrogenous bases.

  • ID: 16422
  • Source: DNALC.DNAFTB

16062. Friedrich Miescher

FRIEDRICH MIESCHER (1844-1895)

  • ID: 16062
  • Source: DNAi