PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
16658236-3	1972	Kinetic studies with 6-methylpurine suggest that the half-life of the messenger RNA for nitrate reductase in both sections is about 20 minutes.	6-methylpurine	21-35	nitrate reductase [NADH] 1	Zea mays	88-105