APOBEC2 and cancer: As for the result of western bolt, we can’t find the significant APOBEC2 protein expression in fresh gastric tissues, even we can show the APOBEC2 expression samples in striated muscle tissues, it hints us that APOBEC2 protein expression levels are relatively low in clinic samples, especially considering the detected mixture samples including the uncertain exact quantity and ratios cancer tissues and the non-cancer tissues.