iPiDA-LTR is constructed by using graph representation learning and learning to rank to
predict associated diseases for query piRNAs, which is compatible with most major browsers, and the parallel
speed-up is implemented. It offers an open and interactive web service, which accepts query piRNA sequence and returns the search results in a user-friendly manner. For the convenience of the experimental
scientists, a step-by-step guide on how to use the iPiDA-LTR web server is given below.
Visit the web server by clicking the link at http://bliulab.net/iPiDA-LTR/server and you will see the page
as shown in Fig. 1. The Microsoft Edge and Google Chrome browsers are recommended.
Step 1: Input the sequences of query piRNA
You can directly enter/paste the query piRNA sequences into the input box,
or upload them via file by clicking the Choose File button. All the input sequences should be in
the FASTA format. A sequence in FASTA format consists of a single line beginning with the symbol ">" and
multiple lines of base sequence data. You can click the Examples button to automatically input the
built-in sequence examples, as show in Fig. 2, and click the Reset button to empty all input
Step 2: Submit your queries
The LTR score cutoff is used for results output, and higher LTR score represents higher confidence. In addition, the Email address is optional, please input your valid Email address so that we can send the results to you.
Step 3: Submit your queries
If you enter query piRNA sequence, and then click the Submit button, you will
see a processing page as shown in Fig. 3. Your job is being processed. The results will be shown
on your screen when it is finished. You can also close this browser window, and reload the results by using the
Step 4: View results
The results will be shown on your screen when it is finished, as shown in Fig.
4. The results will be stored for 7 days, and you can click the Download link to download it.