Fetch and analyze nucleotide sequences from NCBI database
Back to Tools| Accession ID | Sequence | Organism | Length | Molecule Type | Update Date |
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The Sequence Fetch Tool allows you to retrieve multiple nucleotide sequences from NCBI databases by specifying a range of accession IDs. It's useful for batch downloading sequences for research, comparison, or analysis purposes.
Enter the starting and ending accession IDs to define your sequence range. The tool will fetch all sequences within that range. For example, entering GU339067 to GU339071 will retrieve 5 sequences (GU339067, GU339068, GU339069, GU339070, and GU339071).
You can retrieve organism name, sequence length, molecule type, and update date by checking the corresponding options in the "Additional Fields" section.
Yes, the "Preview Length" dropdown lets you select how many base pairs to display for each sequence, ranging from 50bp to the full sequence. This helps manage loading times when working with very long sequences.
After fetching sequences, you can download them in various formats including FASTA and tabular formats. The tool also supports copying sequences directly to your clipboard for use in other applications.