InterPro domain: IPR006924

This small acidic protein is found in 30S ribosomal subunit of cyanobacteria and plant plastids. In plants it has been named plastid-specific ribosomal protein 3 (PSRP-3), and in cyanobacteria it is named Ycf65. Plastid-specific ribosomal proteins may mediate the effects of nuclear factors on plastid translation. The acidic PSRPs are thought to contribute to protein-protein interactions in the 30S subunit, and are not thought to bind RNA [ 1 ].

1. The plastid ribosomal proteins. Identification of all the proteins in the 30 S subunit of an organelle ribosome (chloroplast). J. Biol. Chem. 275, 28455-65