Fig. 1: Processes and types of RNA splicing.
From: The potential impact of RNA splicing abnormalities on immune regulation in endometrial cancer

A RNA splicing process involves two primary steps: branching and ligation. BPS branch point site. B Spliceosomes recognize exon splicing enhancer (ESE), exon splicing silencer (ESS), intron splicing enhancer (ISE), and intron splicing silencer (ISS) splice sites in pre-RNA. C RNA splicing is divided into AS and CS based on the diversity of splicing products and AS is divided into five types: ES, A5SS, A3SS, IR, and MXE. By Figdraw.