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. 2002 Oct 21;99(22):13969–13971. doi: 10.1073/pnas.232574399

Fig 2.

Fig 2.

Selenomethionine activates P53 via the selenoprotein thioredoxin, which activates Ref-1's ability to alter the redox state of P53 cysteines. P53 activated by SeMet elevates DNA excision repair, but does not induce apoptosis or cell cycle arrest as it does when DNA damage activates P53 by phosphorylation.