title: The structure of proteins in biological membranes.
mesh_terms: D000818:Animals; D001436:Bacteriorhodopsins; D002338:Carotenoids; D017630:Connexins; D003576:Electron Transport Complex IV; D005583:Fourier Analysis; D006860:Hydrogen Bonding; D007365:Intercellular Junctions / Q000648:ultrastructure; D008565:Membrane Proteins; D008854:Microscopy, Electron / Q000379:methods; D011487:Protein Conformation
chemical_list: D017630:Connexins; D008565:Membrane Proteins; D002338:Carotenoids; D001436:Bacteriorhodopsins; D003576:Electron Transport Complex IV