isoelectric-focusing analysis on an ampholine/polyacrylamide-gel plate revealed that met-form haemoglobins are present as half-oxidized haemoglobins such as the ( alpha 2+ beta 3+ ) 2 and ( alpha 3+ beta2+ ) 2 forms rather than as methaemoglobin in the erythrocytes of normal human adults and also of a patient with hereditary methaemoglobinaemia due to deficiency of nadh-cytochrome b5 reductase .
C0019046
haemoglobins
C0025635
methaemoglobin