Chemical structures of the substrates used for cell cultivation prior to proteome analysis: A) 3,3´-dithiodipropionic acid, B) 2-mercaptosuccinc acid, C) 3-sulfinopropionic acid, D) succinic acid, E) propionic acid.

<p>Chemical structures of the substrates used for cell cultivation prior to proteome analysis: A) 3,3´-dithiodipropionic acid, B) 2-mercaptosuccinc acid, C) 3-sulfinopropionic acid, D) succinic acid, E) propionic acid.