Fig. 2: Cryo-EM structures of hUT-A2, hUT-A3, hUT-B and zf-UT.

a–d Overall cryo-EM densities and structures of hUT-A2 (a), hUT-A3 (b), hUT-B (c) and zf-UT (d) homotrimer. The cryo-EM densities of different UTs are displayed on the phospholipid bilayer cell membrane with the represent cartoon models shown below. Molecules bound to the extracellular and intracellular sides of different UTs, along with their corresponding EM densities, are indicated in dashed circles at the top and bottom layers, respectively. Created in BioRender. Huang, S. (2024) https://BioRender.com/h99o001.