Sequence Ontology

A shared vocabulary for biological sequence features and annotations

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base

SO:0001236

Definition: A base is a sequence feature that corresponds to a single unit of a nucleotide polymer.

Comments and references

Definition references: SO:ke

Synonyms

No synonyms recorded in the OWL annotations.

Identifiers and subsets

Accession: SO:0001236

Persistent URL: http://purl.obolibrary.org/obo/SO_0001236

Alternate IDs: None

Subsets: SOFA

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

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: 2016-12-05 in commit 92e3cae

Number of changes: 1

Ontology neighborhood diagram

Ontology neighborhood for SO:0001236 Ontology neighborhood graph for SO:0001236 base. Parent, child, and related nodes can be activated to open their term pages. SO:0001411 biological_region SO:0001411 biological_region SO:0001236 base SO:0001236 base SO:0000250 modified_RNA_base_feature SO:0000250 modified_RNA_base_feature SO:0000305 modified_DNA_base SO:0000305 modified_DNA_base
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
2016-12-05createdTerm introduced into the editable ontology history
Initial label: base
Initial definition captured.
Initial parent: SO:0001411
92e3cae