title: Filamentous bacteriophage Pf1 structure determined at 7A resolution by refinement of models for the alpha-helical subunit.
mesh_terms: D000595:Amino Acid Sequence; D003090:Coliphages / Q000648:ultrastructure*; D004279:DNA, Viral; D003720:Densitometry; D008958:Models, Molecular; D008961:Models, Structural; D011487:Protein Conformation; D014764:Viral Proteins; D014961:X-Ray Diffraction
chemical_list: D004279:DNA, Viral; D014764:Viral Proteins