Extended Data Figure 4: Examples of cryo-EM density.
From: Atomic structure of the entire mammalian mitochondrial complex I
a, b, Coils and α-helices from core (a) and supernumerary (b) subunits. c, d, Example β-sheets from core PSST subunit (c) and supernumerary 39-kDa subunit (d). Cryo-EM density is shown with the model represented as sticks and coloured by atom with carbon in grey, oxygen in red, nitrogen in blue and sulfur in yellow.
