Article
Influence of EPIYA-repeat polymorphism on the phosphorylation-dependent biological activity of Helicobacter pylori CagA.
Gastroenterology - 1 Apr 2006
Naito Masanori, Yamazaki Takeshi, Tsutsumi Ryouhei, Higashi Hideaki, Onoe Kazunori, Yamazaki Shiho, Azuma Takeshi, Hatakeyama Masanori
Abstract excerpt
BACKGROUND & AIMS: Helicobacter pylori CagA-positive strain is associated with gastric adenocarcinoma. CagA is delivered into gastric epithelial cells, where it undergoes tyrosine phosphorylation at the EPIYA sites by Src family kinases (SFKs). Owing to homologous recombination within the 3'-region of the cagA gene, 4 distinct EPIYA sites, each of which is defined by surrounding sequences, are variably assembled...
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