1IFK:
reference: Molecular models and structural comparisons of native and mutant class I filamentous bacteriophages Ff (fd, f1, M13), If1 and IKe., Marvin DA, Hale RD, Nave C, Helmer-Citterich M, J Mol Biol 1994 Jan 7;235(1):260-86. PMID: 8289247

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