Affinity purification of ribosomes with a lethal G2655C mutation in 23 S rRNA 
that affects the translocation

Leonov, Andrei A.; Sergiev, Petr V.; Bodganov, Alexej A.; Brimacombe, Richard; Dontsova, Olga A.

doi:10.1074/jbc.M302873200

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Affinity purification of ribosomes with a lethal G2655C mutation in 23 S rRNA that affects the translocation

MPS-Authors

Bodganov, Alexej A.
Max Planck Society;

/persons/resource/persons50113

Brimacombe, Richard
Ribosomes, Max Planck Institute for Molecular Genetics, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Leonov, A. A., Sergiev, P. V., Bodganov, A. A., Brimacombe, R., & Dontsova, O. A. (2003). Affinity purification of ribosomes with a lethal G2655C mutation in 23 S rRNA that affects the translocation. Journal of Biological Chemistry, 278(28), 25664-25670. doi:10.1074/jbc.M302873200.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-89F9-A

Abstract

A method for preparation of Escherichia coli ribosomes carrying lethal mutations in 23 S rRNA was developed. The method is based on the site-directed incorporation of a streptavidin binding tag into functionally neutral sites of the 23 S rRNA and subsequent affinity chromatography. It was tested with ribosomes mutated at the 23 S rRNA position 2655 (the elongation factor (EF)-G binding site). Ribosomes carrying the lethal G2655C mutation were purified and studied in vitro. It was found in particular that this mutation confers strong inhibition of the translocation process but only moderately affects GTPase activity and binding of EF-G.