PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 31537639-4 2019 Knockout of DNMT3A alone perturbed mtDNA regional methylation patterns, but not global levels, and altered mitochondrial gene expression, copy number, and oxygen respiration. Oxygen 155-161 DNA methyltransferase 3 alpha Homo sapiens 12-18