Data Access

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The complete piRNAome dataset is available as bulk flat files and a ready-to-query SQLite database, plus a no-authentication REST API for programmatic access.

v1.0 piRNAome v1.0  ·  Homo sapiens  ·  genome assembly hg38  ·  integrated from seven source databases.
Data files
hsa_piRNA.fasta.gz
All 10,033,305 piRNA sequences. FASTA headers carry the accession, display ID, and length.
FASTA gzip 172.0 MB
md5 1a847609f580b44d9b1d82931e0b3026
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hsa_piRNA.gtf.gz
Genomic loci of 9,942,083 placed piRNAs (primary locus per piRNA; entries with no genomic match are excluded). 1-based GTF; attributes carry the piRNA / locus / family / cluster accessions and genomic context.
GTF gzip 205.9 MB
md5 d88c9dfaafa231884566eb8cfe155e61
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hsa_piRNA_clusters.gtf
14,487 piRNA clusters (1,083 known + 13,404 de novo) with accession, type, tier, and member counts.
GTF 2.3 MB
md5 1fd9e876c335f2b807de529758067433
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hsa_id_aliases.tsv.gz
11,315,648 source-database identifier aliases per piRNA (piRBase, piRNAdb, NCBI, piRNABank, piRNAQuest, piOxiDB, proTRAC).
TSV gzip 80.2 MB
md5 fb43ba90ba67859ebf66a4471346728c
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hsa_families_annotation.tsv.gz
4,586,806 isoform families with annotation (dominant TE class/family/name, gene region, anchor / root-locus context).
TSV gzip 47.8 MB
md5 1b8e5bb01f50af676eec03b6b41ac275
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hsa_snv_results.tsv.gz
4,952,525 locus-level SNVs with dbSNP / ClinVar / COSMIC / REDIportal cross-references, read-oriented change, 3′-terminal tailing flag, and interpretation.
TSV gzip 48.7 MB
md5 448a1882859090d9187eef0bd4c1a72f
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hsa_family_overlaps.tsv.gz
785,144 piRNA–piRNA family overlaps (overlapping / adjacent locus pairs on the same strand). Each row gives both partners' piRNA / locus / family accessions, genomic coordinates, sequences, locus status, and the gap (nt).
TSV gzip 77 MB
md5 503a003fa25c13d51773ed4011720575
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Other species

C. elegans, D. melanogaster, M. musculus and R. norvegicus piRNAome data files are on the other-species portal: species.pirnaome.org/download ↗

Integrity

Checksums

Verify each download against the published md5 sums. A combined manifest is provided at CHECKSUMS.md5; check a file with md5sum -c CHECKSUMS.md5.

CHECKSUMS.md5
API access (available now)

REST API

All data is accessible programmatically through the REST API. No authentication required; responses are JSON.

GET /api/entry/{id} Full record for one piRNA (accession or legacy ID)
GET /api/search?q={query}&quality={tier}&chr={chr} Search with filters, paginated
GET /api/entry/{id}/family Members of a piRNA's isoform family
GET /api/cluster/{id} piRNAs in a cluster (known or de novo)
GET /api/snv/search?q={id} SNV results, filterable
GET /api/stats Database-wide summary statistics