The expression of many eukaryotic genes is regulated at the level of translation initiation. The first step in the initiation process is binding of the small ribosomal subunit (40S) to the mRNA.

a 30S small subunit and a 50S large subunit. The 30S subunit contains a 16S ribosomal RNA (rRNA) molecule, while the 50S subunit harbors 23S and 5S rRNA molecules. In contrast, eukaryotic cells ...

RNA abundance is regulated by balancing transcription and degradation in processes that control the temporal and spatial distribution of cellular RNA. In eukaryotic cells, mRNA decay is catalyzed by ...

First, three initiation factor proteins (known as IF1, IF2, and IF3) bind to the small subunit of the ribosome ... a sample of 170 prokaryotic and 120 eukaryotic proteins (Flinta et al., ...

Ribosomes are composed of two subunits, the small and large subunits ... The rRNA structures also provide binding sites for ribosomal proteins, which help stabilize the overall structure of the ...