derives from derives_from immortal human lymphocyte cell line cell CEM.NKR-CCR5 cell CEM21 cell 651610 CEM#21 Oliver He CEM-R5Luc1#21 BAO: BAO_0030049 https://www.ncbi.nlm.nih.gov/pubmed/10516002 CEM21 (aka CEM#21 or CEM-R5Luc1#21) is derived from CEM.NKR-CCR5 by stable transfecttion of a Tet-activator responsive Luciferase reporter