sequence identifier insdc sequence read accession 2026-04-09T18:02:29.914Z PCDS: ERR123456, DRR123456, CRR123456 A unique identifier assigned by the International Nucleotide Sequence Database Collaboration (INSDC) to a raw sequence read, representing a single experimentally derived nucleotide sequence. PCDS: Store the accession assigned to the submitted sequence. European Nucleotide Archive (ENA) sequence accessions start with ERR, NCBI-SRA accessions start with SRR, DNA Data Bank of Japan (DDBJ) accessions start with DRR and Genome Sequence Archive (GSA) accessions start with CRR. PCDS: The identifier assigned to a sequence in one of the International Nucleotide Sequence Database Collaboration (INSDC) repositories. PCDS:insdc_sequence_read_accession metadata incomplete