you need to do a search via the app, it will launch a browser.
Then you need to search for a term in the browser and then look at the code on the left from the search results.
So you could search for a protein like, say, Actin then search.
Enter the code on the left in your iphone then you're all set.
It requires a little bit of discrimination in that you need to look through the search results to make sure you are getting what you really wanted to search for.