Mb I n HI 



Fig. 1. Paper electrophoresis of homogeneous Mb I,^ Mb II,^ and non-homogeneous 

 crystalline myoglobin. 2 



l.On 



Fig. 2. Oxygen dissociation curve of human 

 Mb I (5 X 10-5 M), at 20° C. and pH 8; Y= 



Mb^M^^bO. ' P^=°-^^ "^ "^- ^^ '^^ ^^^^ 

 denote concentrations P^ oxygen pressure (at 20°) 

 for 50% oxygen saturation. 



pO^ "tin H g 



