The product contains the polyhedrin protein co-crystalized with Human Ephrin-A1. Ephrin-A1 is a member of Ephrin-A family, and it is also known as B61 and LERK-1. Ephrin-A ligands are structurally related to the extracellular domains of the transmembrane Ephrin-B ligands. Eph-Ephrin interactions are widely involved in the regulation of cell migration, tissue morphogenesis, and cancer progression. Ephrin-A1 is widely expressed on endothelial and epithelial cells, particularly in the lung, intestine, liver, and skin.