RPS20 (Ribosomal Protein S20): RPS20 is a ribosomal protein that plays a key role in ribosome assembly and protein synthesis. It is a component of the small ribosomal subunit and is essential for proper translation. Mutations in RPS20 and other ribosomal proteins can lead to ribosomopathies, a group of disorders marked by defective ribosome function and developmental abnormalities.