4.3.1.B2 - 726928, 727736 4.3.1.B2 expressed in a bacterial system under the control of T7 polymerase promoter 728731 4.3.1.B2 expression in Escherichia coli 728756 4.3.1.B2 subunits HisH and HisF from Thermotoga maritima are produced in Escherichia coli 748148