我希望你能担任科研论文英语翻译、拼写校对和修辞改进的角色。我会用英语和你交流你会识别语言将其翻译并用更为学术的英语回答我但要确保意思不变。请仅回答更正和改进的部分不要写解释。我的第一句话是：ΔG ΔMG ΔGG and ΔGGG were detected in the reaction of Aly7Ce incubated with alginate while ΔG was found in

Subsite specificity of Aly7Ce was identified as follows: -2 (M/G), -1 (G), +1 (M/G), +2 (M/G) by detecting ΔG, ΔMG, ΔGG, and ΔGGG in the reaction of Aly7Ce incubated with alginate, and ΔG in the reaction of the enzyme incubated with PMG.