the LDLR affinity and specificity binding the human LDL were similar in murine H22 cells and normal hepatic cells, but the maximum binding of LDL in murine H22 cells was obviously higher than that in normal hepatic cells;

• （2）H22细胞及正常肝细胞LDLR对人LDL的亲和性和特异性相同，但H22细胞Bmax明显增多；