Fig 3. EM images of (A-N) TP901-1erm structural module mutants and (O) TP901-1erm control.
(A) Few tails, but no capsids, produced by mutant PortalTP901-1::Ter. (B) Capsids, without attached tails, visualised for mutant MCP1TP901-1::Ter. (C) Full, but scarce, phage particles produced following mutation MCP2TP901-1::Ter. (D) Tails, but no capsids, produced for mutant SfpTP901-1::Ter. (E) Tails-only produced for mutant MHPTP901-1::Ter. (F) Mature-resembling phages produced for mutant MCP3TP901-1::Ter. (G) Unconnected capsids and tails observed in HTC1TP901-1::Ter. (H) Distinct capsids and tails observed in HTC2TP901-1::Ter. (I) Separated capsids and tails imaged from mutant TapTP901-1::Ter. (J) Capsids with long polytails isolated for mutant TtpTP901-1::Ter. (K) Capsids only are observed for mutant MTPTP901-1::Ter. (L) Capsids and insoluble aggregates, proposed to be the TMP, observed in preparations of mutant gpGTP901-1::Ter. (M) Capsids, but no tails, observed in preparations of mutant gpTTP901-1::BamHI. (N) Mature-resembling phage produced by mutant gpGfsTTP901-1. (O) Control TP901-1erm mature infectious phages. Refer to text for a more detailed description characterizing each mutant. Scale bars are 50 nm long.