The BACE1 protein is an important member of the aspartic protease family and is critical in Alzheimers disease pathology.Alternative splicing generates multiple transcript variants, at least one of which encodes a preproprotein that is proteolytically processed to produce the mature protease.BACE1 Protein, Human (HEK293) is the recombinant human-derived BACE1 protein, expressed by HEK293 , with tag free.