Metal Base Pair from Watson and Crick DNA Model
date: label: Date made
content: 1953
name: label: originator
content: Crick, Francis
label: originator
content: Watson, James
label: maker
content: Cavendish Laboratory
notes: label: Description
content: This is one of four brass templates illustrating the base pairings of adenine and thymine or cytosine and guanine, from Francis Crick's and James Watson's original model of the "double helix" of DNA. Two templates show the correct base pair shapes; two others are earlier, misconceived models. In his book, The Double Helix, Watson recounts the moment he and Crick assembled the first correct model. A key clue for matching the correct forms of adenine and thymine or guanine and cytosine came from American crystallographer Jerry Donohue, who worked in the same laboratory as Watson and Crick. Data from Donohue and other crystallographers, including Rosalind Franklin, was key to Watson and Crick’s success. After the double helix research was published in Nature, generating tremendous worldwide notoriety, Donohue kept the model templates as souvenirs. Later, he returned to the United States, taking a position at the Fox Chase Cancer Center in Philadelphia. Shortly before his death, Donohue gave the templates to his friend and fellow crystallographer, Dr. Helen Berman, who presented them to the Smithsonian in 1988.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Medicine
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Helen Berman, Ph.D.
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1988.0494.01
label: accession number
content: 1988.0494
label: catalog number
content: 1988.0494.01
objectType: label: Object Name
content: model part
label: Object Name
content: template
label: Object Name
content: DNA model template
physicalDescription: label: Physical Description
content: brass (overall material)
label: Measurements
content: overall: 2 cm x 24 cm x 8 cm; 13/16 in x 9 7/16 in x 3 1/8 in