Fig. 5

Poly(A) stretches in RNA are enriched in the iCLIP. a Boxplot of the relative A-content in all 2977 annotated S. solfataricus CDS. b Boxplot of the longest poly(A) stretch for each of the 2977 annotated S. solfataricus CDS. c cDNA reads and crosslink sites in the SSO_RS08715 CDS encoding a transposase. d cDNA reads and crosslink sites in the SSO_RS04655 CDS encoding glutamyl-tRNA (Gln) amidotransferase subunit D. e cDNA reads and crosslink sites in the intergenic region between the convergently transcribed genes SSO_RS09125 (on the plus strand, encodes a hypothetical protein) and SSO_RS09130 (on the minus strand, encodes energy-coupling factor transporter transmembrane protein EcfT). For other descriptions see Fig. 2. The results of the second iCLIP experiment are shown in Fig. S4 (Additional file 1)