Figure 1. Structures of NusG and RfaH.
(A) Ribbon representation of NusG (NTD, light green, PDB-ID: 2K06; CTD, green, PDB-ID: 2JVV (Mooney et al., 2009b)).
(B) Ribbon representation of full-length RfaH (NTD, light blue; CTD, blue; PDB-ID: 2OUG (Belogurov et al., 2007)), with RfaH-CTD in an α-helical fold. Termini and linker regions (broken lines) are labeled.