PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
9650599-3	1998	The presence of the p53-expressing vector was toxic in both cell lines compared to control cells or to those containing the beta-gal vector.	beta-D-galactose	124-132	tumor protein p53	Homo sapiens	20-23	
8950976-8	1996	Furthermore, a dominant-negative p53 mutant (introduced by retroviral transduction) rescued LacZ21 cells from senescence and generated colonies with extended lifespan in which beta-gal expression was totally abolished.	beta-D-galactose	176-184	tumor protein p53	Homo sapiens	33-36	
22860097-4	2012	Our results show that activation of the p14ARF-p53-p21-Rb pathway in the estrogen sensitive MCF-7 breast cancer cells induces many hallmarks of senescence including a large flat cell morphology, multinucleation, senescence-associated-beta-gal staining, and rapid G1 and G2/M phase cell cycle arrest.	beta-D-galactose	234-242	tumor protein p53	Homo sapiens	47-50