| http://www.w3.org/ns/prov#value | - For example, a rapid screening method in which colonies of organisms or cells, such as bacteria, yeast or insect cells, are plated and incubated with a readily visualized glucuronide substrate, such as X-glcA. A colony with a diffuse staining pattern likely secretes GUS, although such a pattern could indicate that the cell has the ability to pump out the cleaved glucuronide or that the enzyme is m
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