Sau 3AI

Description (Brief)
This silver metal canister once contained Sau 3AI, an enzyme commonly used in molecular biology. Sau 3AI belongs to a class of enzymes known as restriction enzymes, which are useful for their ability to cleave DNA only at locations containing specific sequences of nucleotides, the small chemical units which make up the longer DNA molecule. Sau 3AI recognizes the sequence GATC and will cut before the G.
This particular canister of Sau 3AI was used to create recombinant DNA molecules at Genentech, a biotechnology company, in the early 1980s.
GeneON, “Sau3AI.”
Currently not on view
Object Name
Sau 3AI
date made
Genentech, Inc.
Physical Description
Solution in Tris-HCl, 20 mmol/l (overall active ingredients)
NaCl, 50 mmol/l (overall active ingredients)
EDTA, 0.1 mmol/l (overall active ingredients)
Beta-mercaptoethanol, 5 mmol/l (overall active ingredients)
glycerol, 50% (v/v) (overall active ingredients)
metal (overall material)
Sau 3AI (overall active ingredients)
overall: 2 7/8 in x 1 1/4 in; 7.3025 cm x 3.175 cm
place made
Bundesrepublik Deutschland
United States: California, South San Francisco
ID Number
accession number
catalog number
See more items in
Medicine and Science: Biological Sciences
Science & Mathematics
Biotechnology and Genetics
Data Source
National Museum of American History, Kenneth E. Behring Center


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