PLAST-ncRNA is an online implementation of the PLAST (Partition function Local Alignment Search Tool) alignment algorithm based on probabilities.
The server takes as input a query RNA sequence and a large genome sequence, and outputs a list of hits that are above a mean posterior probability threshold.
The output is presented in a format suited to local alignment.
It can also be viewed within the PLAST alignment viewer applet that provides a list of all hits found and highlights regions of high posterior probability within each local alignment.