efn server : 1996-2009, Michael Zuker, Rensselaer Polytechnic Institute
Key Resource
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See also:   RNA mfold server      DNA mfold server

Nucleic acid structure submission form for 38.107.191.102

Enter a name for your structure:

Enter the sequence in the box. All blanks and non-alphabet characters will be edited out.
Current size limitation is about 1500 bases.

Defining the secondary structure:
  • Enter base pair information in the box at the right.
  • This consists of triplets of numbers: i, j and k
  • Each triplet denotes the k base pairs:
    i.j, i+1.j-1 ... i+k-1.j-k+1.
  • Enter a single triplet per line.
Is the sequence linear or circular?
Temperature (between 0° and 100° C)
* RNA free energy parameters:   3     2.3
    Version 3 parameters are for 37° only.
Select nucleic acid type: