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The crystal structures of two new MPs by X-ray diffraction. A. The cytochrome B6F complex of an α-helix bundle protein from Mastigocladus Laminosus, PDB Id: 1VF5(7). The red helices are the TM α-helix segments. B. The translocator domain of autotransporter nalp of a β-barrel protein from Neisseria Meningitidis, PDB Id: 1UYN(8). The yellow segment is the TM β-barrel composed of 12 membrane strands, and an N-terminal α-helix is in the center of the barrel.
