in human fibroblasts , the receptor for low density lipoprotein ( ldl ) is synthesized as a precursor of apparent mr = 120,000 which is converted to a mature form of apparent mr = 160,000 , as determined by migration in sodium dodecyl sulfate ( sds ) -polyacrylamide gels ( tolleshaug , h. , goldstein , j. l. , schneider , w. j. , and brown , m. s. ( 1982 ) cell 30 , 715-724 ) .
C0016030
fibroblasts
C0007634
cell