It is established from a human primary embryonal kidney transformed by adenovirus type 5 (Ad 5); Classified as risk category 1 according to the German Central Commission for Biological Safety (ZKBS); Cell line also known as HEK-293 (human embryonic kidney-293). 它是由腺病毒5型(ad5)转化的人原发性胚胎肾建立的;德国生物安全中央委员会(ZKBS)将其列为风险1类;细胞系又称HEK-293(人胚胎肾-293)。