Identification of a wheat germ ribosome dissociation factor distinct from initiation factor eIF-3.

D. W. Russell, L. L. Spremulli

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

A ribosome dissociation factor(s) has been partially purified from extracts of wheat germ. This factor can be detected by its ability to prevent the reassociation of ribosomal subunits when the magnesium concentration is raised from 1 mM to 5 mN. The majority of the dissociation factor activity is found in the postribosomal supernatant of the cell and can be precipitated between 0 and 40% ammonium sulfate. Chromatography of this material on DEAE-cellulose yields a fraction which contains both the dissociation factor activity and initiation factor eLF-3. However, the majority of the dissociation factor activity can be readily separated from eIF-3 by chromatography on phosphocellulose. The dissociation factor appears to be distinct from any of the othe known wheat germ initiation factors.

Original languageEnglish (US)
Pages (from-to)6647-6649
Number of pages3
JournalJournal of Biological Chemistry
Volume253
Issue number19
StatePublished - Oct 10 1978

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

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