3.5.4.7 6-Chloropurine ribotide competitive inhibition 92018 3.5.4.7 Ag+ 1 mM, inhibition 55% 75 3.5.4.7 Ca2+ 20 mM, inhibition 31% 15 3.5.4.7 diphosphate - 17 3.5.4.7 Fe3+ 0.05 mM, inhibition 44% 70 3.5.4.7 Hg2+ 10 mM, inhibition 39% 33 3.5.4.7 Mg2+ 10 mM, inhibition 34% 6 3.5.4.7 PCMB 0.1 mM, inhibition 49% 78 3.5.4.7 Zn2+ 20 mM, inhibition 36% 14