title: A specific DNA orientation in the filamentous bacteriophage fd as probed by psoralen crosslinking and electron microscopy.
mesh_terms: D001483:Base Sequence; D003090:Coliphages / Q000032:analysis / Q000648:ultrastructure*; D004277:DNA, Single-Stranded; D004279:DNA, Viral; D005814:Genes, Viral; D008854:Microscopy, Electron; D009690:Nucleic Acid Conformation; D010777:Photochemistry; D014307:Trioxsalen / Q000494:pharmacology; D014771:Virion / Q000032:analysis / Q000648:ultrastructure
chemical_list: D004277:DNA, Single-Stranded; D004279:DNA, Viral; D014307:Trioxsalen