1.14.11.33 DNA oxidative demethylase demethylation Escherichia coli - 1.14.11.33 DNA oxidative demethylase demethylation Homo sapiens - 1.14.18.10 plant 4,4-dimethylsterol C-4alpha-methyl-monooxygenase demethylation Arabidopsis thaliana - 2.1.1.269 dimethylsulfoniopropionate demethylase demethylation Candidatus Pelagibacter ubique Q4FP21 2.1.1.269 dimethylsulfoniopropionate demethylase demethylation Ruegeria pomeroyi DSS-3 Q5LS57