Delta like non-canonical Notch ligａnd 1 (DLK1), encompassing amino acids 24-303. This construct contains a C-terminal Avi-tag™ followed by a His-tag (6xHis). The recombinant protein was affinity purified. This protein is enzymatically biotinylated using Avi-Tag™ technology. Biotinylation confirmed to be ≥90%.