Recognizes a protein of 75kDa, identified as Plakophilin 1 (PKP1). Plakophilins 1, 2, 3 and 4 (PKP1-4) influence development and participate in linking cadherins to cytoskeletal intermediate filaments. PKP1-4 contain arm-repeat (armadillo) domains and localize to nuclei and cell desmosomes (cell-cell junctions found in suprabasal layers of stratifying epithelia that undergo mechanical stress). PKP2 is important for desmosome assembly and is an essential morphogenic factor and architectural component of the heart.

Store the Plakophilin 1 antibody at 2-8°C (with azide) or aliquot and store at -20°C or colder (without azide).