Selecting for and Checking Cells with HGPRT Deficiency for Hybridoma Production.

Abstract excerpt

For drug-selective media to work for hybridoma selection, myeloma cells expressing a mutation abrogating the function of their HGPRT gene (and subsequently unable to produce purines for DNA biosynthesis) are used. HGPRT will recognize 8-AG as a substrate and convert it to the monophosphate nucleotide. The 8-AG-containing nucleotide is then processed further and incorporated into DNA and RNA, where it is toxic....

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