3.4.22.2	acid-unfolded papain in the presence of 8 mM SDS and 3.5 mM hexadecyltrimethyl ammonium bromide retains its partial tertiary structure	678740	
3.4.22.2	fractions containing propapain are pooled and refolded by rapid dilution into a refolding buffer at pH 8.6, the denatured protein folds best at pH 8.5 and at 4°C, while pH values above 8.8 and below 7.0 are not suitable for folding, folding process requires addition of 0.5 M arginine, 1 mM glutathione, 0.1 mM GSSG and 15% glycerol	700680	
3.4.22.2	recombinant papain prosegment from Escherichia coli strain BL21(DE3) inclusion bodies by 2% Triton X-100, 8 M guanidinium hydrochloride, and dialysis against 50 mM phosphoric acid/NaOH buffer, pH 7.0, and centrifugation at 45000 rpm for 1 h	667324