You can link a locus search directly to AtPIN. The URL should be build like this:

https://atpin.bioinfoguy.net/locus-[locus].htm

Replace the [locus] for your target locus based on AGI. You direct link may look like this https://atpin.bioinfoguy.net/locus-at1g50200.htm

PS: We are updating AtPIN scripts, so, this might not work all the times, sorry for this inconvenience.