cbrc
MAFFT version 7

Multiple alignment program for amino acid or nucleotide sequences

BUG!! Safari 9.1 on Mac sometimes failed to redirect to the result page even after the calculation finished (2016/Apr).  A workaround has been applied (2016/Apr/20) but it may have side effects on other browsers and/or other OSs.  If you have any problems, please send feedback.

Multiple sequence alignment and NJ / UPGMA phylogeny

Input:
Paste protein or DNA sequences in fasta format.  Example

or upload a plain text file:


Help

UPPERCASE / lowercase:

Direction of nucleotide sequences:

 
 

Output order:

Notify when finished (optional; recommended when submitting large data):
Email address:

Advanced settings

Strategy:
Updated

Progressive methods


Iterative refinement methods

Help  Updated (2015/Jun)
Help
Help
Help

Align unrelated segments, too? in Alpha Testing (2014/Mar)
If the input data is expected to be globally conserved but locally contaminated by unrelated segments, try 'Unalignlevel>0' and possibly 'Leave gappy regions'.

Unalignlevel:

↑ Default
This feature is available only when G-INS-1 or G-INS-i is selected in the Strategy section above.


Parameters:
Scoring matrix for amino acid sequences:
Scoring matrix for nucleotide sequences:
↑ Switch it to '1PAM / κ=2' when aligning closely related DNA sequences.
Gap opening penalty: (1.0 - 3.0)
Offset value: (0.0 - 1.0)

↓ Long stretches of Ns tend to be gapped (excluded from the alignment).

Experimental option (2016/Apr/26)
↑ Try this if Ns should be aligned with usual letters.

Mafft-homologs (Collects homologs from SwissProt by BLAST and performs profile-based alignments; Protein only): Help


Number of homologs: (5 - 200)
Threshold: E = (1e-5 - 1e-40)

Plot LAST hits (DNA only):


Threshold: