transposable element
Let an agent explain transposable elements and their classes, relay their roles in genome evolution, disease and biotechnology with attribution, and distinguish them from viruses and other repetitive DNA.
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 transposable elements and their classes, relay their roles in genome evolution, disease and biotechnology with attribution, and distinguish them from viruses and other repetitive DNA.
A DNA sequence that can change its position within a genome, either by a cut-and-paste mechanism in DNA transposons or through an RNA intermediate in retrotransposons such as long interspersed nuclear elements including LINE1, short interspersed elements including Alu, and long terminal repeat elements, with derived forms such as miniature inverted-repeat transposable elements; transposable elements make up nearly half of the human genome, drive mutation and genome evolution, and are controlled by host silencing mechanisms.
What it is for: Not applicable; a genomic element.
It can be explain classes and mechanisms; relay roles in evolution and disease; relay biotechnology uses; distinguish from related sequences.
Distinguishing features
Mobility
Two main classes
Genome abundance
Host silencing
What it looks like
Not visible; sequences identified in genome data.
Physical character
share of human genome: about 45 percent
LINE1 full length: about 6 kb
How it is recognised
DNA sequence that moves within the genome
DNA transposons and retrotransposons including LINE, SINE and LTR elements
Retroviruses are infectious; satellite DNA is repetitive but does not move
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is silenced by - and DNA methylation
is used in - as a research tool
In practice
Families and kinds
class I retrotransposons: LTR elements, LINEs such as LINE1, SINEs such as Alu and SVA
class II DNA transposons including MITEs
autonomous and non-autonomous elements
unusual elements such as retrozymes
Identifiers
Dfam database transposable element families
Repbase database
Standards and regulation
Transposable element classification systems
Genetic engineering rules for transposon-based tools
Failure modes and hazards
Insertional mutations causing disease
Confusing element classes
Outdated genome share figures
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 transposable elements are.
Science.
Definition
Definition and classes.
Definition
Definition.
- What are transposable elements, and how are they classified? definition
- Is the sequence a transposable element, a virus or another repeat? boundary
Mechanism
Mechanisms.
Mechanism
Mechanism.
- How do cut-and-paste and copy-and-paste transposition work? definition
- Which entry fits the specific class? action
Genome Genome roles.
Attribution.
Evolution
Evolution.
Evolution
Evolution.
- How have transposable elements shaped genome evolution and regulation, with findings attributed? provenance
- Which sources are cited? provenance
Control
Host control.
Control
Control.
- How do cells silence transposable elements? provenance
- Which entry fits piRNA? action
Disease Disease and tools.
Application.
Disease
Disease.
Disease
Disease.
- How do transposable elements cause or contribute to disease, in general terms? provenance
- Is the user asking about a personal genetic result, which needs a clinician? boundary
Tools
Biotechnology.
Tools
Tools.
- How are transposons used in mutagenesis, gene delivery and genome engineering? provenance
- Which entry fits the specific tool? action
Context History and methods.
Context.
History
History.
History
History.
- How did McClintock discover transposable elements, and how was the field received? provenance
- Which references are standard? provenance
Methods
Annotation methods.
Methods
Methods.
- How are transposable elements annotated in genomes? provenance
- Which entry fits genome annotation? action
What the second pass must settle
- Should LINE1 and Alu be separate primary entries?
- How should databases be linked?
- The registry entry has merged aliases naming specific families; should they be split off?