– CD70, also named CD27 ligand (CD27L), is a type II transmembrane glycoprotein belonging to the TNF superfamily (TNFSF) and has been designated TNFSF7.  CD70 is a cytokine that binds to CD27. Plays a role in T-cell activation. Induces the proliferation of costimulated T-cells and enhances the generation of cytolytic T-cells. CD27 Ligand/CD70 Trimer Protein (Primary Amine Labeling), Human, Recombinant (His), Biotinylated is expressed in HEK293 mammalian cells with N-His tag. The predicted molecular weight is 51.8 kDa and the accession number is P32970-1.