Tags: Protein.
40S ribosomal protein S21 is a protein encoded in humans by the RPS21 gene.Ribosomes the organelles that catalyze protein synthesis consist of a small 40S subunit and a large 60S subunit. Together these subunits are composed of 4 RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the 40S subunit. The protein belongs to the S21E family of ribosomal proteins.It is located in the cytoplasm.