PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
12460771-5	2002	After affinity purification over glutathione-Sepharose using stringent washing steps, we observed several co-purifying bands migrating at molecular weights higher than the GST-Alien fusion protein.	Glutathione	33-44	COP9 signalosome subunit 2	Homo sapiens	176-181