by analogy , the increased o2 affinity of human fetal hemoglobin is interpreted according to previous physiological investigations on blood and fetal hemoglobin by the inactivation of the phosphoglycerate contact point beta143 his in the adult hemoglobin by mutation to gamma 143 ser in the fetal hemoglobin .
C0019046
hemoglobin
C0015936
fetal hemoglobin