PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
6169199-3	1981	Effect of adenosine on the activity of key enzymes of pyrimidine nucleotide synthesis (orotidine monophosphate pyrophosphorylase and uridine kinase) was studied.	Pyrimidine Nucleotides	54-75	uridine-cytidine kinase 2	Homo sapiens	133-147	
30551402-5	2019	UCK2 is responsible for the phosphorylation of uridine and cytidine to their corresponding monophosphate in a salvage pathway of pyrimidine nucleotides biosynthesis.	Pyrimidine Nucleotides	129-151	uridine-cytidine kinase 2	Homo sapiens	0-4	
30735369-4	2019	First, we use structure-based protein engineering to alter the substrate specificity of uridine-cytidine kinase 2 (UCK2), a key enzyme in the pyrimidine nucleotide salvage pathway.	Pyrimidine Nucleotides	142-163	uridine-cytidine kinase 2	Homo sapiens	88-113	
30735369-4	2019	First, we use structure-based protein engineering to alter the substrate specificity of uridine-cytidine kinase 2 (UCK2), a key enzyme in the pyrimidine nucleotide salvage pathway.	Pyrimidine Nucleotides	142-163	uridine-cytidine kinase 2	Homo sapiens	115-119