Types I and II Self-Splicing (Autocatalytic) Introns in mRNA

The video tutorial explains RNA processing, focusing on mRNA splicing. It introduces the addition of the 5' cap for stability and ribosome recognition. The tutorial covers self-splicing RNAs, detailing Group 1 and Group 2 introns. Group 1 introns require a guanosine cofactor, while Group 2 introns form a lariat structure through internal nucleophilic attack. The video concludes with a comparison of these mechanisms, emphasizing the role of secondary structure in splicing.

What is a lariat structure in the context of Group 2 introns?

What are the implications of self-splicing RNAs for our understanding of RNA biology?

How does the secondary structure of RNA influence splicing mechanisms?