Fig. 3: Cryo-EM structures of Bs, Sa, Pp, and Lm FBI-GS-GlnR C-tail complexes. | Nature Communications

Fig. 3: Cryo-EM structures of Bs, Sa, Pp, and Lm FBI-GS-GlnR C-tail complexes.

From: Molecular dissection of the glutamine synthetase-GlnR nitrogen regulatory circuitry in Gram-positive bacteria

Fig. 3

A Shown are the top views of the structures for Bs, Sa, Pp, and Lm FBI-GS-GlnR C-tail complexes. GS subunits are colored green and GlnR, red. B Domain architecture of GS and the α14-α15 to α14″–α15″ thong interactions linking the two rings (where ″ indicates subunit from the other ring). C Comparison of the side view of the GlnR-bound GSI-α to the GSI-β from S. typhimurium showing how GlnR (red) binds in the side pore in the same location as the 25-residue insert (blue) found in GSI-β but not GSI-α.

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