a 2024

The interplay between ribosomal anti-association factors during ribosome maturation

HASSAN, Ahmed Adel Ibrahim Hassona; Yuko NAKANO; Gregor BLAHA; Hou YA-MING; Gabriel DEMO et al.

Basic information

Original name

The interplay between ribosomal anti-association factors during ribosome maturation

Authors

HASSAN, Ahmed Adel Ibrahim Hassona; Yuko NAKANO; Gregor BLAHA; Hou YA-MING and Gabriel DEMO

Edition

EMBO/EMBL Symposium - The complex life of RNA, 2024

Other information

Language

English

Type of outcome

Konferenční abstrakta

Country of publisher

Germany

Confidentiality degree

is not subject to a state or trade secret

References:

URL

Marked to be transferred to RIV

No

Organization

Středoevropský technologický institut – Repository – Repository

Keywords in English

ribosome; maturation; RimM; translation efficiency; RsfS; IF3
Changed: 6/1/2026 00:51, RNDr. Daniel Jakubík

Abstract

In the original language

Ribosome biogenesis involves a series of steps, starting from the folding and modification of ribosomal RNA (rRNA) to the assembly of ribosomal proteins and their incorporation into rRNA. Various biogenesis factors play crucial roles in guiding ribosome maturation. Disruptions in these factors result in significant growth impairments and the accumulation of immature ribosomal subunits1. Under such adverse conditions, bacteria may employ stress factors associated with ribosomes to modulate ribosome assembly. The ribosomal maturation factor M (RimM) is necessary for the maturation of the 30S small ribosomal subunit2. Deletion of RimM leads to a decrease in growth rate and a decline in translation efficiency3. Despite this, the gradual recovery of the bacterial phenotype indicates the presence of a reactivation mechanism to restore translation. Ribosomal silencing factor S (RsfS)4 plays a key role in suppressing protein synthesis by binding to the 50S ribosomal subunit, thereby preventing the formation of 70S ribosomes5. This action potentially shields mature 50S subunits from associating with immature 30S subunits. Here, we show close association between initiation factor IF3 and RsfS, and their capabilities on modulating translation and ribosome maturation using a combination of biochemical and structural studies.
Displayed: 3/5/2026 01:39