PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 8626483-2 1996 We surveyed conditions for renaturation of purified rMMP-1 in 6 M guandine hydrochloride (GdnHCl) and found that optimal folding occurred when the denatured protein was diluted at 4 degrees C in approximately 2 M guanidine HCl, 20% glycerol, 2.5 mM reduced and oxidized glutathione, and 5 mM CaCl2, followed by buffer exchange to remove denaturant and thiols. denaturant 337-347 matrix metallopeptidase 1 Rattus norvegicus 52-58