Welcome to the bipartition Web Server

The bipartition server calculates the partition function of two nucleic acid sequences, either RNA or DNA. Small changes in temperature may cause a significant difference in the result. Note that if an error is encountered in bimolecular partitioning, it may still be possible to calculate the partition function on one or both component sequences independently without errors.

If you plan to leave this page while waiting for calculations to complete, please make sure you have entered a valid email address below. Leaving this page without entering a valid email address will render results inaccessible.

If you need specific help using the bipartition server, please click here.

Note: The maximum sequence length has been increased for several tools. Please see Sequence Limits for details.

Select Sequence 1 Input:

- OR -
Enter your sequence title and content below (replaces upload if present).
Please enter nucleotides only, no headers or comments in content.
Valid nucleotides are A, C, G, T, U, and X (unknown nucleotide). Lower case nucleotides are forced single stranded in calculation.




Select Sequence 2:

- OR -
Enter your sequence title and content below (replaces upload if present).
Please enter nucleotides only, no headers or comments in content.
Valid nucleotides are A, C, G, T, U, and X (unknown nucleotide). Lower case nucleotides are forced single stranded in calculation.




Select Nucleic Acid Type:




Select bipartition Options:

If a default value is left blank, the value is treated as if it was not changed at all.

Specify the minimum and maximum probabilities to show on the dot plot.
If a specified probability is out of range, it is ignored.



Designate Address to Email Results: