furthermore , a radiolabeled n-hydroxysuccinimide ester derivative of doxorubicin , which inhibited vcr binding to ehr2/dnr+ membranes to an even greater extent than doxorubicin , labeled plasma membrane proteins from ehr2 and ehr2/dnr+ identically and did not demonstrate any binding to p-glycoprotein .
C0013089
doxorubicin
C0011015
dnr