Electrophoresis Chamber

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Description (Brief)
This object is part of a set-up for vertical gel electrophoresis. Gel electrophoresis is a technique that uses the electrical charges of molecules to separate them by their length. It is often used to analyze DNA fragments.
This set-up was cobbled together by scientists in the lab at Genentech, a biotechnology company, in the late 1970s and used through the 1980s. Its different components were purchased from several suppliers in the San Francisco Bay area and assembled together with binder clips.
Because of its short length, this device was primarily used to perform preparative and analytical DNA work rather than sequencing, which requires a long length to provide greater resolution.
Interview with Dan Yansura, Genentech scientist, 12/20/2012
Currently not on view
Genentech, Inc.
place made
United States: California, South San Francisco
United States: California, South San Francisco
Physical Description
plastic (overall material)
metal (overall material)
glass (overall material)
overall: 8 in x 8 3/4 in x 4 1/4 in; 20.32 cm x 22.225 cm x 10.795 cm
ID Number
accession number
catalog number
Credit Line
Gift of Genentech
See more items in
Medicine and Science: Biological Sciences
Science & Mathematics
Biotechnology and Genetics
Data Source
National Museum of American History


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