Sequence Ontology

A shared vocabulary for biological sequence features and annotations

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base_pair

SO:0000028

Definition: Two bases paired opposite each other by hydrogen bonds creating a secondary structure.

Synonyms

ScopeValue
exactbase pair

Identifiers and subsets

Accession: SO:0000028

Persistent URL: http://purl.obolibrary.org/obo/SO_0000028

Alternate IDs: None

Subsets: None

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

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: 2020-03-27 in commit 3ec5d33

Number of changes: 2

Ontology neighborhood diagram

Ontology neighborhood for SO:0000028 Ontology neighborhood graph for SO:0000028 base_pair. Parent, child, and related nodes can be activated to open their term pages. SO:0000002 sequence_secondary_structure SO:0000002 sequence_secondary_structure SO:0000028 base_pair SO:0000028 base_pair SO:0000029 WC_base_pair SO:0000029 WC_base_pair SO:0000500 Hoogsteen_base_pair SO:0000500 Hoogsteen_base_pair SO:0000501 reverse_Hoogsteen_base_pair SO:0000501 reverse_Hoogsteen_base_pair SO:0000030 sugar_edge_base_pair SO:0000030 sugar_edge_base_pair SO:0001015 wobble_base_pair SO:0001015 wobble_base_pair
The local DAG shows nearby parent, child, and related terms. Each node links to its own term page.

Relationships

Parents

Children

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.

DateChangeSummaryEvidence
2020-03-27definition changedDefinition updated
Before: no definition recorded
After: Two bases paired opposite each other by hydrogen bonds creating a secondary structure.
3ec5d33
2016-12-05createdTerm introduced into the editable ontology history
Initial label: base_pair
Initial parent: SO:0000002
92e3cae