the proteins examined include : cytochrome p-450cam from pseudomonas putida , beef heart cytochrome c oxidase , yeast cytochrome c peroxidase , alpha and beta subunits of human hemoglobin , sheep hemoglobin , carp hemoglobin , sperm whale myoglobin , horse heart myoglobin , a monomeric hemoglobin from glycera dibranchiata , erythrocruorin from chironomusthummii , soybean leghemoglobin , and several hemoglobins that lack distal histidines .
C0544483
beta subunits
C0019046
hemoglobins