Frequently Asked Questions

1. How to use VGAS web server?

Just enter genome sequences or submit files in fasta format, choose the functions you want. Click run, then get the result.

2. When I choose the blast function, which database does the blast against?

During the process of blasting, DNA sequences are firstly converted into protein sequences, then to perform blastp against the data of all virus proteins downloaded from RefSeq.

3.How about the results gotten by VGAS

We have tested approximately 5500 virus genomes download from RefSeq database. The average accuracy of prediction is 88.6%, the false positive rate is 14.9%. So it’s a viable choice for virus genes predicting.

4.Can VGAS deal with the bacteria or archaeal genome?

No, it can’t. Although the program works and generate some results based on those genomes, they are not accurate. There is another software ZCURVE we developed for bacteria and archaea predicting.

5.If the web page can't perform correctly. What can I do?

You could change a browser to try again. If it doesn't work, you can contact with us.

6.Can I get the source code about VGAS?

7.If you have any other questions about VGAS, you can send an e-mail to fbguo@uestc.edu.cn.