PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
11927571-0	2002	A few amino acid substitutions can convert deoxyribonucleoside kinase specificity from pyrimidines to purines.	Purines	102-109	deoxyribonucleoside kinase	Drosophila melanogaster	43-69	
17266931-2	2007	TK2 is strictly pyrimidine-specific, whereas its phylogenetic relative, the Drosophila melanogaster deoxyribonucleoside kinase (DmdNK), shows higher activity and broader specificity towards both pyrimidines and purines.	Purines	211-218	deoxyribonucleoside kinase	Drosophila melanogaster	128-133