PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
6202736-1	1984	A staining reaction was developed to specifically detect arylsulfatase A activity in the presence of arylsulfatases B and C. Nitrocatechol, generated by all arylsulfatases from the substrate p-nitrocatechol sulfate, can be coupled to produce Hatchett "s brown which reacts with 3,3"-diaminobenzidine to yield an osmiophilic polymer visible under the electron microscope.	nitrocatechol	125-138	arylsulfatase A	Homo sapiens	57-72