I have a list of gene names(symbols) and I want to convert them into ensembl protein id(ENSP).
There are many tools like BioMart, David, bioDBnet, etc. However, all of them return multiple ensemble protein ids for a single gene. This is probably due to different transcriptions or splicing. If I want to use one of these ids, which one should I use?
In fact, I need these ids to extract ppi networks from string-db database files.
string-db uses ensembl protein ids in its database files and I don't know which ensembl id it uses for each gene.
Does anyone has any idea?!!