RNA splicing
Let an agent explain RNA splicing and its mechanisms, relay spliceosome function, alternative splicing and regulation from molecular biology references, describe disease relevance and therapies, and distinguish splicing from other RNA processing steps.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent explain RNA splicing and its mechanisms, relay spliceosome function, alternative splicing and regulation from molecular biology references, describe disease relevance and therapies, and distinguish splicing from other RNA processing steps.
The process by which introns are removed from a precursor messenger RNA and exons are joined to produce mature RNA, carried out in eukaryotes mainly by the spliceosome through two transesterification reactions, and in other cases by self-splicing introns or by endonucleolytic cleavage and ligation as in tRNA splicing, with alternative splicing including exon skipping producing multiple proteins from one gene, and related processing of small nucleolar RNAs; splicing errors and mutations cause many diseases and splicing is a target of new therapies.
What it is for: Not applicable; a molecular process.
It can be explain mechanisms; relay alternative splicing and regulation; describe disease and therapy; distinguish from other processing.
Distinguishing features
Intron removal
Spliceosome machinery
Alternative splicing
Disease relevance
What it looks like
Not a visible object; introns excised and exons joined.
Physical character
human genes with alternative splicing: over 90 percent - of multi-exon genes
spliceosome components: about 150 proteins - plus five snRNAs
splicing discovered: 1977 year - Sharp and Roberts
How it is recognised
Removal of introns from RNA
Spliceosomal splicing via transesterification, self-splicing, tRNA splicing via cleavage and ligation, exon skipping, snoRNA processing
Capping and polyadenylation are other processing steps; transcription precedes splicing
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is carried out by - in eukaryotes
enables - and protein diversity
In practice
Families and kinds
spliceosomal splicing via two transesterification reactions
self-splicing group I and group II introns
tRNA and archaeal splicing via endonucleolytic cleavage and ligation
alternative splicing including exon skipping, intron retention and alternative sites
trans-splicing
processing of snoRNAs from introns
Identifiers
GO GO:0008380 RNA splicing
MeSH D012326 RNA splicing
Standards and regulation
No regulation; standard molecular biology definitions
Drug regulation of splicing-modulating therapies such as nusinersen and risdiplam
Failure modes and hazards
Splicing mutations causing disease
Confusing splicing with other RNA processing
Agents giving personal medical advice about splicing therapies
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What RNA splicing is.
Science.
Definition
Definition and mechanism.
Definition
Definition.
- What is RNA splicing, and how does the spliceosome remove introns through two transesterification reactions? definition
- Is the question about splicing, capping, polyadenylation or transcription? boundary
Kinds
Kinds.
Kinds
Kinds.
- How do spliceosomal, self-splicing and cleavage-and-ligation tRNA splicing differ, and how are snoRNAs processed? definition
- Which entry fits the specific mechanism? action
Regulation Alternative splicing.
Science.
Alternative
Alternative splicing.
Alternative
Alternative.
- How do exon skipping and other alternative splicing patterns generate protein diversity? provenance
- Which references are standard? provenance
Control
Regulation.
Control
Control.
- How do splicing factors, enhancers, silencers and chromatin regulate splicing? provenance
- Which entry fits splicing regulation? action
Medicine Disease and therapy.
Clinical.
Disease
Splicing in disease.
Disease
Disease.
- How do splicing mutations and dysregulation cause diseases such as spinal muscular atrophy and cancers, in general terms? provenance
- Which sources are cited? provenance
Therapy
Splicing therapies.
Therapy
Therapy.
- How do antisense oligonucleotides and small molecules modulate splicing as therapies? provenance
- Is the user asking about their own treatment, which needs their clinicians? boundary
Context Evolution and history.
Context.
Evolution
Evolution.
Evolution
Evolution.
- How did introns and splicing evolve, and what debates exist, with positions attributed? provenance
- Which entry fits intron evolution? action
History
History.
History
History.
- How were split genes and splicing discovered by Sharp and Roberts? provenance
- Which entry fits the history of molecular biology? action
What the second pass must settle
- Should spliceosome and alternative splicing be separate primary entries?
- How should molecular biology references be linked?
- The registry entry has merged aliases naming mechanisms and processes; should they be split off?