Hi, community! :)
I am in need to find a functional annotation (KO number) of each protein (represented by STRING ID) in PPI networks.
Specifically, I have five PPI networks extracted from STRING database and I would like to annotate each protein in the networks with KO numbers.
Previously, I did it as follows:
- Download all annotations (ko00001.keg) from KEGG ORTHOLOGY database.
- Convert all string IDs to gene names using the ID table provided by STRING database.
- Find an annotation in ko00001.keg of each gene using python script.
Is there a more elegant or precise way to do this?
I appreciate your reading in advance. :)