AC MF_00871; DC Protein; auto TR HAMAP; MF_00871; -; 1; level=0 XX Names: RqcP XX ID RQCP DE RecName: Full=RQC P-site tRNA stabilizing factor; DE Short=RqcP; DE AltName: Full=Ribosome-associated protein quality control protein P; GN Name=rqcP; XX CC -!- FUNCTION: Key component of the ribosome quality control system (RQC), a CC ribosome-associated complex that mediates the extraction of CC incompletely synthesized nascent chains from stalled ribosomes and CC their subsequent degradation. RqcH recruits Ala-charged tRNA, and with CC RqcP directs the elongation of stalled nascent chains on 50S ribosomal CC subunits, leading to non-templated C-terminal alanine extensions (Ala CC tail). The Ala tail promotes nascent chain degradation. RqcP is CC associated with the translocation-like movement of the peptidyl-tRNA CC from the A-site into the P-site. CC -!- SUBUNIT: Associates with stalled 50S ribosomal subunits. Binds to RqcH, CC 23S rRNA and the P-site tRNA. Does not require RqcH for association CC with 50S subunits. CC -!- SIMILARITY: Belongs to the RqcP family. XX DR PROSITE; PS50889; S4; 1; trigger=yes DR Pfam; PF01479; S4; 1; trigger=no DR PIRSF; PIRSF038881; RNAbp_HP1423; 1; trigger=no XX KW Protein biosynthesis KW RNA-binding KW rRNA-binding KW tRNA-binding XX GO GO:0019843; F:rRNA binding GO GO:0000049; F:tRNA binding GO GO:0043023; F:ribosomal large subunit binding GO GO:0072344; P:rescue of stalled ribosome XX FT None XX Size: 79-103; Related: None; Template: P37557; Scope: Bacteria Fusion: Nter: None Cter: None Duplicate: None Plasmid: None Comments: None XX # Version: 3 # Last updated date: 2024-09-04 # Created date: 2024-09-03 //