Extended Data Figure 4: Cryo-EM density for hTRPV6 in nanodiscs.

a, Cryo-EM density at 4σ for a single hTRPV6 subunit, with the protein shown in ribbon and coloured according to domains. b–g, Fragments of the hTRPV6 transmembrane ___domain with the corresponding cryo-EM densities.