论文部分内容阅读
利用聚合酶联(PCR)技术从6例消化性溃疡患者的胃组织中分离6株幽门螺杆菌菌株扩增鞭毛素A中央区基因序列,另外10株幽门螺杆菌的序列来自G enbank,比较相应氨基酸序列寻找变异性氨基酸。结果显示,东西方菌株间无明显差别。幽门螺杆菌鞭毛素A中央区氨基酸序列存在多态性。
Six strains of Helicobacter pylori isolated from gastric tissue of 6 patients with peptic ulcer were amplified by polymerase chain reaction (PCR) from the central region of flagellin A. The sequences of the other 10 H. pylori were from Genbank, Amino acid sequence search for a variant amino acid. The results showed that there was no significant difference between East and West strains. The amino acid sequence of Helicobacter pylori ghrelin A is polymorphic.