Positive test controls include: HeLa, Jurkat, A-549. Immunogen sequence: VRKSIARVLT VINQTQKENL RKFYKGKKYK PLDLRPKKTR AMRRRLNKHE ENLKTKKQQR KERLYPLRKY A. Ribosomes, the organelles that catalyze protein synthesis, consist of a small 40S subunit and a large