Welcome to the ProbablePair Web Server

The ProbablePair server creates a group of structures that only contain pairs above a certain probability threshold. By default, if no threshold is specified, one structure is generated for each of the following probability thresholds: 0.99, 0.97, 0.95, 0.90, 0.80, 0.70, 0.60, and 0.50.

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 ProbablePair server, please click here.

February 14, 2018:
RNAstructure tools have been updated to version 6.0.1 which includes several improvements.
Please contact us with any questions or issues regarding this update.

Select Sequence 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 Nucleic Acid Type:

Select ProbablePair Options:

Designate Address to Email Results: