knob
SO:0002257
Definition: Cytologically observable heterochromatic regions of chromosomes away from centromeres that contain predominatly large tandem repeats and retrotransposons.
Comments and references
Added as per request from GitHub Issue #487 (https://github.com/The-Sequence-Ontology/SO-Ontologies/issues/487)
Definition references: PMID:6439888
Synonyms
| Scope | Value |
|---|---|
| exact | Heterochromatin Knob |
Identifiers and subsets
Accession: SO:0002257
Persistent URL: http://purl.obolibrary.org/obo/SO_0002257
Alternate IDs: None
Subsets: None
Cross references: None
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: 2020-05-27 in commit 7359d28
Most recent Git-era change: 2021-02-16 in commit 1ee2370
Number of changes: 2
Ontology neighborhood diagram
Relationships
Parents
Children
None recorded in the current release neighborhood.
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 |
|---|---|---|---|
| 2021-02-16 | edited | Term stanza touched in repository history | 1ee2370#531 |
| 2020-05-27 | created | Term introduced into the editable ontology history Initial label: knob Initial definition captured. Initial parent: SO:0000657 | 7359d28#487 |