the earlier finding that the o2 affinity of the llama hemoglobin is dependent on its content of 2 , 3-bisphosphoglycerate is interpreted here as a mutation of the 2 , 3-bisphosphoglycerate contact position beta2 his in human hemoglobin to beta2 asn in llama hemoglobin , whereby one of the four 2 , 3-bisphosphoglycerate contact points is interrupted .
C0086418
human
C1417683
beta2