RNA Folding Form

M. Zuker
Mfold web server for nucleic acid folding and hybridization prediction.
Nucleic Acids Res. 31 (13), 3406-15, (2003)
[Abstract] [Full Text] [Supplementary Material] [Additional Information]

The folding temperature is fixed at 37°. You may still fold with the older version 2.3 RNA parameters, which allow the temperature to be varied.

DNA mfold server. Quikfold. Fold many short RNA or DNA sequences at once.

Enter sequence name:    

Enter the sequence to be folded in the box below. All non-alphabet characters will be removed.
FASTA format may be used.



   

Enter constraint information in the box at the right. (optional) You may:


  1. force bases i,i+1,...,i+k-1 to be double stranded by entering:
    F   i   0   k on 1 line in the constraint box.
  2. force consecutive base pairs i.j,i+1.j-1, ...,i+k-1.j-k+1 by entering:
    F   i   j   k on 1 line in the constraint box.
  3. force bases i,i+1,...,i+k-1 to be single stranded by entering:
    P   i   0   k on 1 line in the constraint box.
  4. prohibit the consecutive base pairs i.j,i+1.j-1, ...,i+k-1.j-k+1 by entering:
    P   i   j   k on 1 line in the constraint box.
  5. prohibit bases i to j from pairing with bases k to l by entering:
    P   i-j   k-l on 1 line in the constraint box.

Your job can be processed while you wait (the default) or can be submitted for batch processing by pressing the button below. In this case, you will be notified at a later time that the job is finished. If you select a batch job, please make sure your E-mail address is correct in the window below.

Current limits: 800 bases for an immediate job, 9000 for batch.

 


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