PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15634740-10 2005 Fourth, the deoxynucleotide carrier exerts the most control over the mtDNA replication rate in rapidly dividing cells, but in postmitotic cells, the NDPK and TK2 enzymes have the most control. deoxynucleotide 12-27 thymidine kinase 2 Homo sapiens 158-161 17483096-2 2007 Most are associated with defects in genes involved in mitochondrial deoxynucleotide metabolism or utilization, such as mutations in thymidine kinase 2 (TK2) as well as the mtDNA replicative helicase, Twinkle and gamma polymerase (POLG). deoxynucleotide 68-83 thymidine kinase 2 Homo sapiens 152-155