Human CEACAM5, also known as Carcinoembryonic antigen-related cell adhesion molecule 5, CEA, and CD66e, GenBank Accession No. NM_004363.6, a.a. 35-685 with a C-terminal Avi-His-Tag^TM, expressed in a HEK293 cell expression system. MW=75 kDa. This protein runs at a higher M.W. by SDS-PAGE due to glycosylation.