Preparation of ribosomes loaded with truncated nascent proteins to study ribosome binding to mammalian mitochondria

James A. MacKenzie, R. Payne

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Supporting a co-translational model of protein import into mitochondria, we have previously shown that ribosome-nascent chain complexes (RNCs) specifically bind to mitochondria. When producing RNCs using the rabbit reticulocyte lysate in vitro translation system, it was necessary to maximize ribosome loading with truncated nascent proteins because it had a direct impact on RNC binding. We describe here the optimal conditions for preparing RNCs. We show that translation temperature and reaction time are two critical factors, with 30 °C and 15 min being optimal, respectively. We also show that transcription reactions can be used directly in the translation reaction to create RNCs.

Original languageEnglish
Pages (from-to)67-75
Number of pages9
JournalMitochondrion
Volume6
Issue number2
DOIs
StatePublished - Apr 2006

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Ribosomes
Mitochondria
Proteins
Reticulocytes
Rabbits
Temperature

Keywords

  • In vitro translation
  • Mitochondria
  • Protein targeting
  • Ribosome-nascent chain complex
  • Ribosomes

ASJC Scopus subject areas

  • Biophysics

Cite this

Preparation of ribosomes loaded with truncated nascent proteins to study ribosome binding to mammalian mitochondria. / MacKenzie, James A.; Payne, R.

In: Mitochondrion, Vol. 6, No. 2, 04.2006, p. 67-75.

Research output: Contribution to journalArticle

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