text: Part of the complex which carries out this process contains a conserved internal stem loop responsible for coordinating magnesium ions.
full_question: Part of the complex which carries out this process contains a conserved internal stem loop responsible for coordinating magnesium ions. The differences between Lamins A and C are due to differences in this process. In female drosophila, sex determination relies on the binding of sex lethal protein to force an alternate pathway for this process, resulting in a functional Tra protein. During this process, Complex E binds to a conserved adenosine at the branch point, which is found upstream from a polypyrimidine tract. The transesterification reactions that occur during this process form a distinct lariat intermediate. The complex responsible for this process includes subunits such as U4 and U6, which are snRNPs and this process ends with the ligation of exons. For 10 points, name this post transcriptional process which removes introns from mRNA.
first_sentence: Part of the complex which carries out this process contains a conserved internal stem loop responsible for coordinating magnesium ions.