piRBase · piR-hsa-N
piR before the species — e.g. piR-hsa-237. Published piRNA-N spellings are also accepted.
piRNAdb · hsa-piR-N
stored as piRNAdb-hsa-piR-N; search the bare or full form. Mind hyphens & order.
NCBI (GenBank) · DQ######_piR-N
accession + piR number — e.g. DQ569913_piR-30025, or just piR-N.
piRNABank · hsa_piR_NNNNNN
underscores and zero padding — e.g. hsa_piR_000651; the paper shorthand piR-651 is accepted.
piRNAQuest · hsa_piRNA_N
note piRNA (not piR), underscores — e.g. hsa_piRNA_32046.
piOxiDB · hgpiR-N
oxidised piRNAs — e.g. hgpiR-0600049.