Ribosomes,the organelles that catalyzeprotein synthesis,ineukaryotes,consist of asmall 40S subunitand alarge 60S subunit(whereasprokaryoticribosomes are 70Svedbergunits, composed of50Sand30Ssubunits). They are located in the cytoplasm. Together these subunits are composed of four RNA species and approximately 80 structurally distinct proteins. This gene encodes a ribosomal protein that is a component of the eukaryotic 40S subunit. The protein belongs to the S7P family of ribosomal proteins. Variable expression of this gene incolorectal cancerscompared to adjacent normal tissues has been observed, although no correlation between the level ofexpressionand the severity of the disease has been found. As is typical for genes encoding ribosomal proteins, there are multiple processedpseudogenesof this gene dispersed through the genome.[7]
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