piR-hsa-N
piR before the species — e.g. piR-hsa-237. A bare piR-N also works.hsa-piR-N
stored as piRNAdb-hsa-piR-N; search the bare or full form. Mind hyphens & order.DQ######_piR-N
accession + piR number — e.g. DQ569913_piR-30025, or just piR-N.hsa_piR_NNNNNN
underscores, zero-padded — e.g. hsa_piR_000001.hsa_piRNA_N
note piRNA (not piR), underscores — e.g. hsa_piRNA_32046.hgpiR-N
oxidised piRNAs — e.g. hgpiR-0600049.piRO-hsa-P########,
a bare piR-N short name, a gene / TE name, or a nucleotide sequence (≥ 8 nt, A/C/G/T).
piRNAclusterDB / proTRAC clusters use IDs like Hsap_N (a genomic cluster, not a single piRNA).