The files in this folder are HRTEM images, Image Simulations, Struture models and HAADF images used to produce Figures 2a-g. The images are are best visualised using the free offline version of Gatan Microscopy Suite 3 (i.e. GMS3) incorporating the EELS/EFTEM Suite (i.e. useful for Figure 3). This is free to download at https://www.gatan.com/enabling-researcher-access-gms-3-during-covid-19-lab-closures (accessed 28-7-21). Structures (in protein database *.pdb format) can be visualised using freeware or open source utilities such as Molmil (http://gjbekker.github.io/molmil/) or Rasmol (http://www.openrasmol.org)