Ampicillin sodium salt
Chemical Name: (2S,5R,6R)-6-[[(2R)-2-Amino-2-phenylacetyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid sodium salt
Biological ActivityAntibiotic. Widely used selection reagent for transformed cells expressing β-lactamase.
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Tocris products are intended for laboratory research use only, unless stated otherwise.
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Blue/white screening (Insertional inactivation of an enzyme coding gene) was carried out.The vector molecule contains genes that when expressed confer resistance to the antibiotics ampicillin.Bacteria (E. coli, lacZ’-) containing non-recombinant plasmid grows on ampicillin plates (due to the ampicillin resistance gene) and have a blue colour (in the presence of X-gal) due to the presence of the lacZ’ gene.