Editing RNA splicing (section)

{{Short description|Process in molecular biology}}
'''RNA splicing''' is a process in [[molecular biology]] where a newly-made [[precursor messenger RNA]] (pre-[[mRNA]]) [[transcription (biology)|transcript]] is transformed into a [[mature messenger RNA]] ([[Messenger RNA|mRNA]]). It works by removing all the [[intron]]s (non-coding regions of RNA) and ''splicing'' back together [[exon]]s (coding regions). For [[nuclear genes|nuclear-encoded genes]], splicing occurs in the [[cell nucleus|nucleus]] either during or immediately after [[Transcription (biology)|transcription]]. For those [[eukaryotic transcription|eukaryotic genes]] that contain introns, splicing is usually needed to create an mRNA molecule that can be [[translation (biology)|translated into protein]].  For many eukaryotic introns, splicing occurs in a series of reactions which are catalyzed by the [[spliceosome]], a complex of small nuclear ribonucleoproteins ([[snRNP]]s). There exist [[self-splicing intron]]s, that is, [[ribozyme]]s that can catalyze their own excision from their parent RNA molecule. The process of transcription, splicing and [[translation (biology)|translation]] is called [[gene expression]], the [[central dogma of molecular biology]].
[[File:Process of RNA splicing.png|thumb|Process of RNA splicing]]