2.8.1.6 - 645582, 645583, 645586, 645588, 645595, 645600, 645601, 645603, 645604, 645605, 645611, 645612, 645614, 690617, 702042, 702281 2.8.1.6 His6-BioB is purified from Escherichia coli K12 WT strain BW25113, or from knockout strains lacking HscA, HscB, or DnaK, purification on a Ni-NTA-agarose column 702256 2.8.1.6 partial 645599 2.8.1.6 wild-type and mutant enzymes 645606 2.8.1.6 wild-type and mutants N151A, H152A, N153A, D155A. Purified enzymes have a reddish brown colour 672076