PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
10491636-4	1999	Both Smad2 mRNA and protein were detected in meiotic germ cells, from preleptotene to pachytene spermatocytes, but not in postmeiotic germ cells.	pachytene	86-95	SMAD family member 2	Mus musculus	5-10