Extended Data Figure 1: Image processing procedures.
From: Atomic structure of the entire mammalian mitochondrial complex I
a, Representative micrograph of 2.6 k micrographs collected that all varied in defocus, ice thickness and particle count, with good quality particles circled. Scale bar, 100 nm. b, Representative 2D class averages obtained from reference-free classification. c, Classification and refinement procedures used in this study.
