SO:0000297 - D

D_loop

SO:0000297

Definition: Displacement loop; a region within mitochondrial DNA in which a short stretch of RNA is paired with one strand of DNA, displacing the original partner DNA strand in this region; also used to describe the displacement of a region of one strand of duplex DNA by a single stranded invader in the reaction catalyzed by RecA protein.

Comments and references

Moved from is_a: SO:0000296 origin_of_replication to is_a: SO:0001411 biological_region after Terrence Murphy (INSDC) pointed out that the D loop can also refer to a loop in DNA repair, which is not an origin of replication. See GitHub Issue #417 (https://github.com/The-Sequence-Ontology/SO-Ontologies/issues/417)

Definition references: http://www.insdc.org/files/feature_table.html

Synonyms

Scope	Value
exact	D-loop
exact	INSDC_feature:D-loop
related	displacement loop

Identifiers and subsets

Accession: SO:0000297

Persistent URL: http://purl.obolibrary.org/obo/SO_0000297

Alternate IDs: None

Subsets: None

Cross references: http://en.wikipedia.org/wiki/D_loop

History summary

Term history is reconstructed from the Git-era ontology files by comparing ontology classes across revisions. Earlier SVN-era changes will be added at a future date.

First seen in Git-era editable history: 2016-12-05 in commit 92e3cae

Most recent Git-era change: 2020-07-08 in commit 0e12904

Number of changes: 5

Ontology neighborhood diagram

The local DAG shows nearby parent, child, and related terms. Each node links to its own term page.

Relationships

Parents

SO:0001411 - biological_region

Children

SO:0002294 - mitochondrial_D_loop

Change history

This timeline summarizes changes identified in SO’s GitHub commit history, including updates to labels, definitions, parent terms, synonyms, subsets, and obsoletion status. It is a best-effort reconstruction and may not include every change to a term. Since only history from GitHub is included at the moment, any term added before the migration from SVN to Git will show as being created in 2016. This will be addressed once SVN history is incorporated.

Date	Change	Summary	Evidence
2020-07-08	parent removed	Parent removed: SO:0000296	`0e12904` #417
2020-07-08	parent added	Parent added: SO:0001411	`0e12904` #417
2020-07-01	edited	Term stanza touched in repository history	`2e01a41`
2018-01-26	synonym added	Synonym added: INSDC_feature:D-loop Scope: exact	`5fe48bd`
2016-12-05	created	Term introduced into the editable ontology history Initial label: D_loop Initial definition captured. Initial parent: SO:0000296	`92e3cae`