Happy New Year!
For anyone doing proteomics on heart tissue -- there's an App for that! The iCOPa is a curated database of proteomics data that has been stored. Unfortunately, I can't really speak to the ease of use or efficiency, because I don't actually have any heart tissue proteomics data to filter it with, but it's a great idea nonetheless!
It is linked to the data of the cardiat organella protein atlast knowledgebase, that you can learn more about here.