Fig. 2From: Mercury removal by engineered Escherichia coli cells expressing different rice metallothionein isoformsSDS-PAGE analysis of GST and GST–OsMTs. Total proteins extracted from E. coli harboring pET41a (lane 1), pET41a-OsMT1 (lane 2), pET41a-OsMT2 (lane 3), pET41a-OsMT3 (lane 4), and pET41a-OsMT4 (lanes 5) 4 h after addition of IPTGBack to article page