PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
23677978-3	2013	During spermatogenesis, seminiferous stage-specific expression of claudin 3 is believed to regulate the migration of preleptotene/leptotene spermatocytes across the BTB.	leptotene	120-129	claudin 3	Homo sapiens	66-75