ega-4-defs-ncbis-assembly-descriptor-properties-ncbi-assembly-unit.md

NCBI assembly unit Schema

https://raw.githubusercontent.com/EbiEga/ega-metadata-schema/main/schemas/EGA.common-definitions.json#/$defs/ncbiAssemblyDescriptor/properties/ncbiAssemblyUnit

NCBI's identifier of the assembly unit. An assembly unit is defined as the collection of sequences used to define discrete parts of an assembly. Commonly, assembly units are entire chromosomes (e.g. Chromosome 1 of human genome), scaffolds or different types of sequences (e.g. Mitochondrial DNA). Again, it follows an 'ontologyTerm' structure, having a 'termId' (e.g. 'refseq:NC_000001.11') and 'termLabel' (e.g. 'chromosome 1'). See further details here: https://www.ncbi.nlm.nih.gov/assembly/model/.

Abstract	Extensible	Status	Identifiable	Custom Properties	Additional Properties	Access Restrictions	Defined In
Can be instantiated	No	Unknown status	No	Forbidden	Allowed	none	EGA.common-definitions.json*

ncbiAssemblyUnit Type

object (NCBI assembly unit)

all of

• Ontology term

ncbiAssemblyUnit Properties

Property	Type	Required	Nullable	Defined by
termId	Not specified	Optional	cannot be null	EGA common metadata definitions

termId

termId

• is optional

• Type: unknown (Ontology constraints for this specific termId)

• cannot be null

• defined in: EGA common metadata definitions

termId Type

unknown (Ontology constraints for this specific termId)

termId Examples

"refseq:NC_000001.11"

"refseq:NC_012920.1"