anchorage role in ribosome assembly and rRNA binding. Eubacterial S4 also facilitates
synthesis of rRNA, and restrains translation of ribosomal proteins of the same polycistronic
mRNA. Eukaryotic S4 has no homolog in eubacterial kingdom, nor are such extraribosomal
functions of S4 known in plants and animals even as genetic evidence suggests that
deficiency of S4X isoform in 46, XX human females may produce Turner syndrome (45, XO) …