rRNA methylation by Spb1 regulates the GTPase activity of Nog2 during 60S ribosomal subunit assembly

Regulation of 60S biogenesis remains poorly understood. Using cryo-EM, the authors show that failure of Spb1 to methylate the A-loop nucleotide G2922  prematurely activates the GTPase Nog2, suggesting that Spb1 and Nog2 form a kinetic checkpoint during ribosome maturation.

Bibliographic Details
Main Authors: Kamil Sekulski, Victor Emmanuel Cruz, Christine S. Weirich, Jan P. Erzberger
Format: Article
Language:English
Published: Nature Portfolio 2023-03-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-023-36867-5
Description
Summary:Regulation of 60S biogenesis remains poorly understood. Using cryo-EM, the authors show that failure of Spb1 to methylate the A-loop nucleotide G2922  prematurely activates the GTPase Nog2, suggesting that Spb1 and Nog2 form a kinetic checkpoint during ribosome maturation.
ISSN:2041-1723