In nematode worms, NSUN-1 methylates ribosomal RNA and influences phenotypes related to aging, stress resistance, germ line development, and cuticle integrity by regulating translation of specific mRNAs.
Ribosome production is unexpectedly integrated into innate cell-intrinsic responses that regulate double strand DNA-sensing and inflammatory cytokine induction in infected and uninfected cells.
Eukaryotic translation initiation factor 3 (eIF3) is required to stabilize the binding of mRNA at the exit channel of the small ribosomal subunit and acts at the entry channel to accelerate mRNA recruitment to the translation preinitiation complex.
The messenger RNA encoding La-related protein-4 (LARP4) contains a short region of instability whose codon clusters are sensitive to low abundance tRNAs that when elevated increase LARP4 activity for poly(A) lengthening of ribosomal protein mRNAs and other mRNAs.
Single-molecule observations reveal a mechanism that may be used by multiple competing regulatory proteins to control ribosomal RNA production during rapid bacterial cell growth.
The size of the mRNA fragment protected by a ribosome depends on the ribosome's conformation, which enables studies of the distinct steps of decoding and translocation at single-codon resolution.