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

# Sequence Read Archive accession (SRA, ENA, DDBJ) (`sra_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 an object in the sequence read archives of NCBI (SRA), EMBL-EBI (ENA) and DDBJ, which store raw data from high-throughput sequencing. The first letter is S, E or D after the archive that issued it, the second is R, and the third gives the kind of object, for example X for an experiment, R for a run and S for a sample. Digits follow. Studies and samples also have BioProject and BioSample accessions, which 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`):

```
^[SED]R[APRSXZ]\d+$
```

## Examples

- `SRX000007` — 454 sequencing of a paired-end library of HapMap individual NA18505 (experiment); Bioregistry example
- `SRR000001` — A sequencing run of that experiment
- `ERS368772` — ENA sample accession of BioSample SAMEA2397676
- `SAMEA2397676` (invalid example) — BioSample accession, not a read archive accession

## Mappings

- bioregistry: `insdc.sra`

## Sources

- doc: <https://www.ncbi.nlm.nih.gov/sra>
- other: <https://bioregistry.io/registry/insdc.sra>

## Quality

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

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