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

# INSDC sequence accession (GenBank, ENA, DDBJ) (`insdc_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 number of a sequence record in the databases of the International Nucleotide Sequence Database Collaboration: GenBank at NCBI, the European Nucleotide Archive (ENA) at EMBL-EBI and DDBJ. The three exchange their records and share one accession space. Older nucleotide records have one letter and five digits or two letters and six digits; bulk records such as whole-genome shotgun contigs have four to six letters and eight to ten digits; coding sequence (protein) records have three letters and five digits, as in AAA35559. A version such as .1 may follow. RefSeq, read archive, BioSample and BioProject accessions are separate datatypes.

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

## Detection

Regular expression (Python `re`):

```
^([A-Z]\d{5}|[A-Z]{2}\d{6}|[A-Z]{4,6}\d{8,10}|[A-J][A-Z]{2}\d{5})(\.\d+)?$
```

## Examples

- `X58356` — Nicotiana sylvestris gene for a 33 kDa chloroplast ribonucleoprotein; Bioregistry example
- `X58356.1` — The same record with its version
- `NM_000546` (invalid example) — RefSeq accession, not an INSDC one

## Mappings

- bioregistry: `insdc`

## Sources

- doc: <https://www.insdc.org/>
- other: <https://bioregistry.io/registry/insdc>

## Quality

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

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