PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 3196699-4 1988 The critical concentration for GFAP assembly was 0.08 +/- 0.04 mg/mL in 2 mM Tris-HCl, 60 mM KCl, and 1 mM CaCl2, pH 6.8. Tris hydrochloride 77-85 glial fibrillary acidic protein Bos taurus 31-35