Video 15: Thomas Sakmar, clip 3

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.

erwin chargaff, phoebus levene, sakmar, protein structure, photochemistry

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16352. Video 15: Thomas Sakmar, clip 1

Comments on some of the prevailing theories of the time and Phoebus Levene's basic hypothesis

  • ID: 16354
  • Type: video
  • Source: DNAFTB

16353. Video 15: Thomas Sakmar, clip 2

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

  • ID: 16354
  • Type: video
  • 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: 16354
  • Type: video
  • Source: DNAFTB

15690. Erwin Chargaff

Image of Erwin Chargaff

  • ID: 16354
  • Type: video
  • Source: DNAi

15672. Phoebus Levene (c. 1930)

Phoebus Levene, circa 1930.

  • ID: 16354
  • Type: video
  • Source: DNAi

15250. Complementary base pairing, Erwin Chargaff

Erwin Chargaff talks about his name for Chargaff's ratios.

  • ID: 16354
  • Type: video
  • Source: DNAi

16345. Gallery 15: Phoebus Aaron Theodor Levene, 1915

Phoebus Aaron Theodor Levene, 1915.

  • ID: 16354
  • Type: video
  • Source: DNAFTB

15251. Discovering the rules of complementary base pairing, Erwin Chargaff

Erwin Chargaff talks about his discovery – a major step for building the DNA model.

  • ID: 16354
  • Type: video
  • Source: DNAi

16429. Gallery 19: Erwin Chargaff, 1947

Erwin Chargaff was the first to accurately measure nucleotide amounts in DNA.

  • ID: 16354
  • Type: video
  • Source: DNAFTB

15495. Chargaff's ratios, 3D animation with narration

Erwin Chargaff found that in DNA, the ratios of adenine (A) to thymine (T) and guanine (G) to cytosine (C) are equal. This parity is obvious in the final DNA structure.

  • ID: 16354
  • Type: video
  • Source: DNALC.DNAi