PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18459168-1 2008 Human mitochondrial thymidine kinase (TK2) is a pyrimidine deoxynucleoside kinase (dNK) that catalyzes the phosphorylation of pyrimidine deoxynucleosides to their corresponding deoxynucleoside 5"-monophosphates by gamma-phosphoryl transfer from ATP. Adenosine Triphosphate 245-248 thymidine kinase 2 Homo sapiens 38-41