PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
1009954-4	1976	These findings are interpreted assuming that in presence of Ca2+ the three subunits forming the native S-100 protein have two cysteine residues exposed to the solvent but mismatched to form disulfides while in presence of K+ the sulphydryl groups are in a less accessible position to Nbs2 but suitable for S-S bond formation.	Sulfur	306-307	S100 calcium binding protein B	Homo sapiens	103-108