1. A method performed by one or more processing devices, comprising: retrieving data for a protein in a tissue type in a first state and for the protein in the tissue type in a second state; determining, based on the retrieved data, first features of the protein in the tissue type in the first state; determining, based on the retrieved, second features of the protein in the tissue type in the second state; and identifying, based on the first features and the second features, that a location of the protein in the tissue type in the first state differs from a location of the protein in the tissue type in the second state.