Alpha complementation of LacZ in mammalian cells

Abstract excerpt

The bacterial lactose converting enzyme beta-galactosidase (β-gal) and its gene (LacZ) have been studied for many years (1 and references therein) and are among the most utilized tools in molecular biology. The LacZ product, a polypeptide of 1029 amino acids, gives rise to the functional enzyme after tetramerization (2 and references therein) and is easily detected by chromogenic substrates either in cell lysates...

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