in sds electrophoresis , two molecular size populations are present in rat alpha1-fetoprotein ( mr = 74 000 and 72 000 ) and in mouse alpha1-fetoprotein ( mr = 73 000 and 72 000 ) but only one is observed in human alpha1-fetoprotein ( mr = 70 000 ) .
C0086418
human
C0002210
alpha1-fetoprotein