&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;Side-by-side comparison of protein uL5 from four major taxonomic groups of organisms. Labels point to protein segments that are found only in a subset of species.&amp;nbsp;