Service Announcement

We will be carrying out essential maintenance on our service infrastructure on Tuesday 24th July between 7am to 5pm (BST). You may experience slow response from some services during this period. Apologies for any inconvenience caused. If you have any concerns, please contact us via support.

Multiple Sequence Alignment

Clustal Omega is a new multiple sequence alignment program that uses seeded guide trees and HMM profile-profile techniques to generate alignments between three or more sequences. For the alignment of two sequences please instead use our pairwise sequence alignment tools.

Important note: This tool can align up to 4000 sequences or a maximum file size of 4 MB.

STEP 1 - Enter your input sequences

a set of sequences in any supported format:

Or, a file:

STEP 2 - Set your parameters
STEP 3 - Submit your job
(Tick this box if you want to be notified by email when the results are available)
If available, the title will be included in the subject of the notification email and can be used as a way to identify your analysis

If you plan to use these services during a course please contact us.

Please read the FAQ before seeking help from our support staff.