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  • Title: Preparative ion-exchange high-performance liquid chromatography of bacterial ribosomal proteins.
    Author: Capel M, Datta D, Nierras CR, Craven GR.
    Journal: Anal Biochem; 1986 Oct; 158(1):179-88. PubMed ID: 3541682.
    Abstract:
    We have developed analytical and preparative ion-exchange HPLC methods for the separation of bacterial ribosomal proteins. Proteins separated by the TSK SP-5-PW column were identified with reverse-phase HPLC and gel electrophoresis. The 21 proteins of the small ribosomal subunit were resolved into 18 peaks, and the 32 large ribosomal subunit proteins produced 25 distinct peaks. All peaks containing more than one protein were resolved using reverse-phase HPLC. Peak volumes were typically a few milliliters. Separation times were 90 min for analytical and 5 h for preparative columns. Preparative-scale sample loads ranged from 100 to 400 mg. Overall recovery efficiency for 30S and 50S subunit proteins was approximately 100%. 30S ribosomal subunit proteins purified by this method were shown to be fully capable of participating in vitro reassembly to form intact, active ribosomal subunits.
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