Dithiothreitol is the most preferred reducing agent; {HEAD ~ preferred reducing agents} are {TAIL ~ dithioerythritol} and lipoic acid 
are
Dithiothreitol is the most preferred reducing agent ; { HEAD ~ preferred reducing agents } are { TAIL ~ dithioerythritol } and lipoic acid
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH