label: a 5-hydroxymethyl-2'-deoxycytidine in DNA + 2-oxoglutarate + O2 => a 5-formyl-2'-deoxycytidine in DNA + succinate + CO2 + H2O
label_lc: a 5-hydroxymethyl-2'-deoxycytidine in dna + 2-oxoglutarate + o2 => a 5-formyl-2'-deoxycytidine in dna + succinate + co2 + h2o