Sequence Comparison Tool

Identify mutations between reference and query sequences

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Reference Sequence

Upload FASTA/TXT

Drag & drop your file here or click to browse

NCBI Accession ID

No sequence loaded

Query Sequence

Upload FASTA/TXT

Drag & drop your file here or click to browse

NCBI Accession ID

No sequence loaded

How to Cite This Tool

APA Format

Priyam, J. (2025). Jyotsna's NCBI Tools - Sequence Comparison Tool. DOI: 10.5281/zenodo.15069907

MLA Format

Priyam, J. "Jyotsna's NCBI Tools - Sequence Comparison Tool." 2025, DOI: 10.5281/zenodo.15069907. Accessed April 26, 2025.

BibTeX Format

@software{10_5281_zenodo_15069907, author = {Priyam, J.}, title = {Jyotsna's NCBI Tools - Sequence Comparison Tool}, year = {2025}, version = {1.0.0}, doi = {10.5281/zenodo.15069907}, url = {https://ncbi.jyotsnapriyam.com/sequence-comparison}, note = {Accessed: April 26, 2025} }

Frequently Asked Questions

What types of sequences can I compare with this tool?

This tool can compare DNA and RNA sequences in various formats, including FASTA and plain text. You can directly upload sequence files or fetch sequences from NCBI using their accession IDs.

How does the sequence comparison algorithm work?

The tool performs a pairwise alignment between your reference and query sequences to identify differences. It categorizes mutations as substitutions (base changes), insertions (added bases), or deletions (removed bases). The algorithm also calculates statistics like mutation rate and distribution across different regions.

Can I filter the mutation results?

Yes, you can filter results by mutation type (substitution, insertion, deletion) and by specific positions or regions of interest. This helps you focus on the most relevant changes for your research.

What information is included in the PDF report?

The PDF report includes comprehensive analysis details: summary statistics, sequence metadata, a visualization of mutation distribution, a complete table of all mutations with their positions and types, and citation information for academic use.

How can I cite this tool in my research?

You can cite this tool using standard academic formats (APA, MLA, Chicago) with the DOI: 10.5281/zenodo.15069907. Citation formats are provided at the bottom of the results page and included in the generated PDF reports.

What is the maximum sequence length this tool can handle?

The tool is optimized for sequences up to 1 million base pairs. Larger sequences can be processed but may take longer. For very large genomic sequences (>10 million bp), we recommend using specialized desktop software.