The small subunit of eubacterial RIBOSOMES. It is composed of the 16S RIBOSOMAL RNA and about 23 different RIBOSOMAL PROTEINS.

Synonyms: Bacterial Small Ribosome Subunits, 30S Ribosome Subunits, Bacterial, 30S Ribosomal Subunits, Bacterial, Ribosomal Subunits, 30S, Bacterial, Small Ribosome Subunits, Bacterial, Ribosome Subunits, Small, Bacterial, Ribosomal Subunits, Small, Bacterial, Bacterial Small Ribosomal Subunits, Small Ribosomal Subunits, Bacterial, Ribosome Subunits, 30S, Bacterial