Services are gradually being migrated to
Please try out the new site.

NetPicoRNA 1.0 Server

This service has been discontinued, due to portability issues.

The NetPicoRNA 1.0 server produces neural network predictions of cleavage sites of picornaviral proteases. The method is described in detail in the reference article mentioned below (see CITATIONS at the bottom of this page).

NOTE: The appearance of this page changed on Mar 26, 2009. The functionality was improved and the documentation revised; the mail server was terminated. It is now possible to submit several sequences in one go, either by pasting or directly from a FASTA file on a client host. However, there is no change to the method itself and the predictions.

Instructions Output format Article abstract


Paste a single sequence or several sequences in FASTA format into the field below:

Submit a file in FASTA format directly from your local disk:

Type of prediction
prediction of 2Apro sites
prediction of 3Cpro sites (entero+rhino)
prediction of 3Cpro sites (aphtho)
prediction of autocatalytic sites

 Verbose output

Each sequence not less than 9 or 15 and not more than 4000 amino acids (see instructions).

The sequences are kept confidential and will be deleted after processing.


For publication of results, please cite:

Cleavage site analysis in picornaviral polyproteins: discovering cellular targets by neural networks.
Blom N, Hansen J, Blaas D and Brunak S.
Protein Science 5:2203-2216, 1996.

View the abstract.


Scientific problems:        Technical problems: