PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11708900-12 2001 The results suggest that the mitochondrial isozyme of thymidine kinase (TK2) plays only a minor part in ZDVMP formation. 3'-azido-3'-deoxythymidine 5'phosphate 104-109 thymidine kinase 2 Homo sapiens 72-75 11708900-13 2001 Following PHA stimulation, activation of the cytosolic thymidine kinase isozyme (TK1) is associated with increased toxicity of ZDV. Zidovudine 127-130 thymidine kinase 1 Homo sapiens 81-84