The determination of specific radioactivity of proteins eluted intact from polyacrylamide gels, utilizing a fluorescamine assay.

Autor: Kilgore LL, Rogers JL, Patterson BW, Miller NH, Fisher WR
Jazyk: angličtina
Zdroj: Analytical biochemistry [Anal Biochem] 1985 Feb 15; Vol. 145 (1), pp. 113-9.
DOI: 10.1016/0003-2697(85)90335-5
Abstrakt: The methodology described permits the measurement of the specific radioactivity of diverse proteins resolvable by separatory techniques using cylindrical polyacrylamide gels. Following separation, the proteins are electroeluted; eluted protein is quantitated in the microgram range using a fluorescamine assay, while the major portion of the recovered sample is used for radioactivity measurement. These procedures have been adapted for use in tracer studies of protein metabolism. Their utility in kinetic investigations is demonstrated with data on the time course of changing specific radioactivities of human plasma albumin and apolipoprotein B labeled in vivo with a [3H]leucine tracer.
Databáze: MEDLINE