PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
17684410-3	2007	We found that functional polymorphisms in methylenetetrahydrofolate reductase (MTHFR) and thymidylate synthase (TS), two key enzymes involved in folate and methyl group metabolism, were significantly associated with increased risk of esophageal squamous cell carcinoma, gastric cardia carcinoma, and pancreatic carcinoma.	Folic Acid	61-67	thymidylate synthetase	Homo sapiens	90-110	
17684410-3	2007	We found that functional polymorphisms in methylenetetrahydrofolate reductase (MTHFR) and thymidylate synthase (TS), two key enzymes involved in folate and methyl group metabolism, were significantly associated with increased risk of esophageal squamous cell carcinoma, gastric cardia carcinoma, and pancreatic carcinoma.	Folic Acid	61-67	thymidylate synthetase	Homo sapiens	112-114