Column liquid chromatography
Reversed phase operation
Springer Online Journal Archives 1860-2000
Chemistry and Pharmacology
Summary High performance liquid chromatography was used to separate proteins derived from ribosomes of the archaebacteriumMethanococcus vannielii. Several methods of separation were tested: size exclusion chromatography, reversed phase and ion-exchange chromatography. Best results were obtained using reversed phase columns and volatile buffers that allow direct sequence analysis of the proteins. In addition, HPLC was used to separate crosslinked protein-protein pairs fromBacillus stearothermophilus ribosomes on a preparative scale. Identification of crosslinked amino acids is a prerequisite for more detailed topographical investigations of this cell organelle. The purification of the 50S crosslink L23–L29 was achieved by a combination of two different reversed phase columns, and the 30S crosslink S13–S19 was purified after salt extraction by size exclusion chromatography. The methods described here allow a rapid preparation of ribosomal proteins for structural and functional investigations.
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