Mouse OX40L, also known as tumor necrosis factor ligａnd superfamily member 4, TNFSF4, and CD252, GenBank Accession No. NM_009452, a.a. 49-198 (end) with an N-terminal His-tag, expressed in a HEK293 cell expression system. MW = 18 kDa. This protein runs at a higher MW by SDS-PAGE due to glycosylation.