Peptides against the external protein A (OmpA) are provided for the treatment of infections caused by Gram negative pathogens, especially Acinetobacter baumanii, Escherichia coli or Pseudomonas aeruginosa. Preferred cyclic hexapeptides comprise tryptophan, proline and arginine,and a preferred cyclic hexapeptide has the sequence c- (WPRWPR). Variants thereof with modified amino acids, D-amino acids or different order of the amino acids in the cyclic hexapeptide are also disclosed.
                            针对外部蛋白A(OmpA)的肽段用于治疗由革兰氏阴性病原体引起的感染,特别是鲍曼不动杆菌、大肠杆菌或
铜绿假单胞菌。首选的环六肽包括色
氨酸、脯
氨酸和精
氨酸,首选的环六肽序列为c- (WPRWPR)。还公开了具有改性
氨基酸、D-
氨基酸或不同
氨基酸顺序的环六肽的变体。