How to download sra files from ncbi
Although Kraken’s k-mer-based approach provides a fast taxonomic classification of metagenomic sequence data, its large memory requirements can be limiting for some applications. Kraken 2 improves upon Kraken 1 by reducing memory usage by… Run accessions are used to download SRA data. To download a list of Run accessions selected from your Entrez search: Prefetch is a part of the SRA toolkit. This program downloads Runs (sequence files in the compressed SRA format) and all additional data necessary to convert the Run from the SRA