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Structural organization of N proteins. a RNA-binding location and residues involved in interactions. b Structural components of N proteins (basic finger and palm) that facilitate RNA binding. Surface representation of RNA binding (c) N-terminal tail residues N48, N49, T50, and A51 (d). G phosphate moiety recognition residues T55, A56, and R89. N, nucleocapsid proteins; G, guanosine.
