CCR4 – NOT complex Cleavage and polyadenylation of pre-mRNA DNA binding proteins with AP2 domain(s) Encoded proteins that could be constituents of P-bodies Modification of the wobble position uridine (U34) in Lys, Glu, Gln, Leu and Arg tRNAs mRNA 5' capping mRNA degradation Pre-ribosomal particles along the 40S assembly pathway Pre-riboso?mal particles along the 60S assembly pathway Protein factors in pre-mRNA 3’-end processing Maturation and export of 60S and 40S ribosomal subunits Quality control in mRNA biogenesis Secondary structure of spliceosomal RNAs Splicing of pre-mRNA Structure and processing of pre rRNA RNA polymerase I transcribes rRNA RNA polymerase II transcribes mRNA RNA polymerase III transcribes tRNA and 5S rRNA The structures of RNA polymerases tRNA modifications tRNA-wybutosine biosynthesis tRNA thiolation