Acid-polyacrylamide gel electrophoresis (acid-PACE) was used for analy
sis of lysozyme-estrone glucuronide conjugates. The resolution of the
system allowed the identification of individual conjugate families whi
ch differed only in the position of acylation or in the number of estr
one glucuronide units. Acid-PAGE was a good alternative to denaturing
cation-exchange chromatography for the analysis, separation, and small
-scale purification of lysozyme-estrone glucuronide conjugates. It rev
ealed the true order of the relative degree of positive charge on the
lysozyme-estrone glucuronide conjugates.