PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18459168-2 2008 In resting cells, TK2 is suggested to play a key role in the mitochondrial salvage pathway to provide pyrimidine nucleotides for mitochondrial DNA (mtDNA) synthesis and maintenance. Pyrimidine Nucleotides 102-124 thymidine kinase 2 Homo sapiens 18-21