The structure of the peripheral domain of a NADH dehydrogenase related protein; bacterial FMN dehygrogenase PDB 2FUG. This structure omits a large transmembrane domain which lies to the bottom of the image and extends to the right. This section of the complex lies in the mitochondrial matrix.
Click this LINK to visit the original image and attribution information. Right click on the image to save the 800px teaching JPEG.