Ribosome rescue factor SmrB

UniProtKB accession: P0A8B2

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Polymer Entities matching query 532

Go to UniProtKB: P0A8B2

UniProtKB description: Acts as a ribosome collision sensor (PubMed:35264790). Detects stalled/collided disomes (pairs of ribosomes where the leading ribosome is stalled and a second ribosome has collided with it) and endonucleolytically cleaves mRNA at the 5' boundary of the stalled ribosome (PubMed:35264790). Stalled/collided disomes form a new interface (primarily via the 30S subunits) that binds SmrB (PubMed:35264790). Cleaved mRNA becomes available for tmRNA ligation, leading to ribosomal subunit dissociation and rescue of stalled ribosomes (PubMed:35264790).

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