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The functional significance of ribosomal proteins is still relatively unclear. Here, we examined the role of small subunit protein S20 in translation using both in vivo and in vitro techniques. By means of lambda red recombineering, the rpsT gene, encoding S20, was removed from the chromosome of Salmonella enterica var. Typhimurium LT2 to produce a ΔS20 strain that grew markedly slower than the wild...
Genes introduced by gene replacements and other types of horizontal gene transfer (HGT) represent a significant presence in many archaeal and eubacterial genomes. Most alien genes are likely to be neutral or deleterious upon arrival and their long‐term persistence may require a mechanism that improves their selective contribution. To examine the fate of inter‐species gene replacements, we exchanged...
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