PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12944387-10 2003 Although the human enzymes, ABH2 and ABH3, demethylated 1-methyladenine residues in poly(dA), they were inefficient with shorter substrates. poly( 84-89 alkB homolog 2, alpha-ketoglutarate dependent dioxygenase Homo sapiens 28-32