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The CFG face of the pre-Tα domain. The view looks down the CFG face. Trp46 is located at the center of the face. Compared with the ABE face, this face is much less regular and with shorter β strands. The side chain indole ring of Trp46 lie flat on the domain, and has hydrophobic contacts with Pro42 and His92, which may help stabilize the domain.
