worldwide. In particular, APEC O1, one of the most common serotypes of APEC, is considered problematic due to its zoonotic potential. Therefore, many attempts have been made to develop an effective vaccine against APEC O1. In fact, the lipopolysaccharide (LPS) O‐antigen of APEC O1 has been shown to be a potent antigen for inducing specific protective immune responses. However, the detailed structure of the
禽致病性大肠杆菌(AP
EC)是感染鸡的常见细菌病原体,给全世界的家禽业造成经济损失。特别是,AP
EC O1是AP
EC最常见的血清型之一,由于其人畜共患病的潜力而被认为是有问题的。因此,已经进行了许多尝试来开发针对AP
EC O1的有效疫苗。实际上,AP
EC O1的脂
多糖(LPS)O抗原已被证明是诱导特异性保护性免疫应答的有效抗原。但是,AP
EC O1 O抗原的详细结构尚不清楚。本研究证明了源自强力大肠杆菌的LPS五糖重复单元的首次合成O1及其与
BSA的共轭物。使用半合成糖缀合物和AP
EC O1免疫鸡血清的ELI
SA测试表明,五糖是AP
EC O1的糖基候选物,具有作为疫苗开发抗原的巨大潜力。