translate English to French: Catabolic products of guanine-14C in these cells were xanthine, which was formed directly from guanine, and guanosine which at least in part was formed via dephosphorylation of guanylate.
Ces cellules catabolisent la guanine-14C en xanthine, formée directement à partir de la guanine, et en guanosine, formée, du moins en partie, par déphosphorylation du guanylate.