Fig. 6From: CAR-T cell potency: from structural elements to vector backbone componentsA schematic picture of a SIN LV vector backbone indicating where modular regulatory elements should be placed. LTR: Long Terminal Repeat, RRE: Rev-Response Element, cPPT: Central Polypurine Tract, IP: Internal Promoter, WPRE: Woodchuck Hepatitis Virus (WHV) Posttranscriptional Regulatory Element, USE: Upstream Sequence Element, PA: Polyadenylation SignalBack to article page