PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
7714053-6	1994	The 75% of G418-resistant HeLa cell lines that did not express Env were found to contain proviruses that had undergone deletion of env sequences corresponding to a known intron; presumably these cell lines arose as a result of infection with virions derived from spliced RNAs.	antibiotic G 418	11-15	endogenous retrovirus group K member 20	Homo sapiens	131-134	
2831375-4	1988	One of the gag-pol and env clones (GP+E-86) was able to transfer G418 resistance to recipient cells at a titer of as high as 1.7 X 10(5) when it was used to package delta neo and as high as 4 X 10(6) when it was used to package N2.	antibiotic G 418	65-69	endogenous retrovirus group K member 20	Homo sapiens	23-26