Skip to main content
. Author manuscript; available in PMC: 2023 Dec 1.
Published in final edited form as: Cell Signal. 2022 Oct 8;100:110489. doi: 10.1016/j.cellsig.2022.110489

Figure 2. CT structure.

Figure 2.

CT is composed of an A1 subunit with ADP-ribosyltransferase activity (red), an A2 linker (yellow), and a B homopentamer (translucent grey, in order to show extension of the A2 subunit into the central cavity of the ring-like B moiety). The paired cysteine residues of the CTA1/CTA2 disulfide bond are highlighted in blue. PDB entry 1S5F [54].