Two-dimensional gel electrophoresis can be used to examine chromatographic effluent fractions from displacement...

We show how two-dimensional gel electrophoresis can be used to monitor protein components in effluent fractions from a displacement column. A minor protein in human serum, of interest in studies on psoriasis and highly enriched by using carboxymethyldextrans as displacers on DEAE-Sephacel, was easily detected in the effluent fractions with the two-dimensional gel method because its concentration was sufficiently high and there was no interference by the carboxymethyldextrans or salt.