What’s The Answer? (transmembrane protein dbs)

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This week’s highlighted question drew less response than I expected. It’s a good question, and would be of major interest for folks looking for druggable targets. So I figured–yeah, there must be a site that focuses on this. But I couldn’t pull one out of my memory banks. I was hoping someone else would. Any thoughts?

Question: Are there any specialist transmembrane protein databases?

I am working almost exclusively with transmembrane proteins. Are there any databases that specialise in categorising transmembrane proteins. For example by membrane type, number of membrane spanning regions, number of non-polar helices, whether the protein is functional or structural, et cetera.

Good Gravy

Bring an answer over there if you know of one.