version description donor_id tissue_id execution_datetime protocols_io_doi operator operator_email pi pi_email assay_category assay_type analyte_class is_targeted acquisition_instrument_vendor acquisition_instrument_model bulk_transposition_input_number_nuclei bulk_atac_cell_isolation_protocols_io_doi is_technical_replicate library_adapter_sequence library_average_fragment_size library_concentration_value library_concentration_unit library_construction_protocols_io_doi library_creation_date library_final_yield_value library_final_yield_unit library_id library_layout library_pcr_cycles library_preparation_kit sample_quality_metric sequencing_phix_percent sequencing_read_format sequencing_read_percent_q30 sequencing_reagent_kit transposition_kit_number transposition_method transposition_transposase_source contributors_path data_path 1 sequence bulkATACseq DNA nM ng single-end / paired-end