PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
16004589-4	2005	The natural product geldanamycin, a potent ansamycin Hsp90 inhibitor, has served as a lead compound for the development of several derivatives that are currently undergoing clinical trials.	Rifabutin	43-52	heat shock protein 90 alpha family class A member 1	Homo sapiens	53-58