Reagents. Coomassie Brilliant Blue G-250 was obtained from Sigma,
and used as supplied. 2-Mercaptoethanol was obtained from Sigma.
Triton X- 100 was obtained from Schwartz/Mann. Sodium dodecyl sulfate
was obtained from BDH Chemicals Ltd., Poole, England. Hemosol was
obtained from Scientific Products. All other reagents were of analytical
grade or the best grade available.