PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1939196-2	1991	Abnormal tau proteins (PHF-tau) were isolated from Alzheimer"s disease brains by treatment of paired helical filament enriched-fractions with perchloric acid and boiling of the acid precipitable fraction with beta-mercaptoethanol.	Perchloric Acid	142-157	microtubule associated protein tau	Homo sapiens	9-12	
18713639-3	2008	We have developed a two-step, highly efficient purification procedure of perchloric acid-extracted fetal tau by immunoaffinity chromatography and trichloroacetic acid (TCA) precipitation.	Perchloric Acid	73-88	microtubule associated protein tau	Homo sapiens	105-108	
12417659-8	2002	Perchloric acid-soluble tau was also phosphorylated at many sites, with the notable exception of serine 214.	Perchloric Acid	0-15	microtubule associated protein tau	Homo sapiens	24-27	
1939196-2	1991	Abnormal tau proteins (PHF-tau) were isolated from Alzheimer"s disease brains by treatment of paired helical filament enriched-fractions with perchloric acid and boiling of the acid precipitable fraction with beta-mercaptoethanol.	Perchloric Acid	142-157	microtubule associated protein tau	Homo sapiens	23-30	
2124967-4	1990	Four of these bands aligned with the major tau bands found in adult human cerebral cortex following perchloric acid extraction and alkaline phosphatase treatment.	Perchloric Acid	100-115	microtubule associated protein tau	Homo sapiens	43-46