---
id: "genome_assembly_accession"
kind: "datatype"
status: "draft"
is_pii: false
categories: ["science"]
langs: ["common"]
quality: 85
url: "http://registry.apicrafter.io/datatype/genome_assembly_accession"
---

# Genome assembly accession (GCA, GCF) (`genome_assembly_accession`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

Accession of a genome assembly in the assembly databases of NCBI, ENA and DDBJ: GCA_ for an assembly as submitted to the INSDC archives or GCF_ for an assembly in the NCBI RefSeq collection, then nine digits and an optional version such as .1.

- Personal data (PII): no
- Categories: Scientific (science)
- Countries: global
- Languages: Common to most languages (common)
- Classification: identifier

## Detection

Regular expression (Python `re`):

```
^GC[AF]_[0-9]{9}(\.[0-9]+)?$
```

## Examples

- `GCA_000155495.1` — ASM15549v1, assembly of Helicobacter pullorum MIT 98-5489; Bioregistry example
- `GCF_000001405` — RefSeq assembly accession without version; Bioregistry example
- `GCA_155495.1` (invalid example) — Fewer than nine digits

## Mappings

- bioregistry: `insdc.gca`, `insdc.gcf`

## Sources

- doc: <https://www.ncbi.nlm.nih.gov/datasets/genome/>
- other: <https://bioregistry.io/registry/insdc.gca>
- other: <https://bioregistry.io/registry/insdc.gcf>

## Quality

Score 85/100. Missing: translation, detector coverage.

JSON: <http://registry.apicrafter.io/api/v1/datatypes/genome_assembly_accession.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/any/science/genome_assembly_accession.yaml>