Sequence Similarity Search

Introduction

Submit a nucleotide sequence and receive a summary of all public INSDC assembled and annotated sequence records with regions of sequence similarity. Search using default parameters or optionally tailor your search further using the ‘Search against’ and ‘Set parameters’ options.

This service is backed by NCBI BLAST+ and you will be redirected to the NCBI BLAST+ service once the job is submitted. Please refer to the help & documentation for usage details and parameter options.

Search against a specific sequence set

Select a specific sequence set to refine your search to a specific sequence data type. If you wish to limit your search by taxonomic group or sequence data class this will restrict the search to the latest ENA release only.

Set parameters for your search

Searches can be performed using blastn, tblastx or tblastn. Please refer to the NCBI BLAST+ help & documentation for usage details and parameter options.