[[(2~{R},3~{S},5~{R})-5-[4-[(4~{S})-4,5-bis(oxidanyl)pent-1-ynyl]-2-nitro-pyrrol-1-yl]-3-oxidanyl-oxolan-2-yl]methoxy-oxidanyl-phosphoryl] phosphono hydrogen phosphate

P19821 — DNA polymerase I, thermostable