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. 2015 Aug 12;10(8):e0135383. doi: 10.1371/journal.pone.0135383

Fig 3. Transmission electron microscopy analysis of N1-PPs.

Fig 3

Culture supernatants of 293T cells transfected with no DNA (Mock) and with both pNL4-3luc and pI.18_ N1 from the A/turkey/Turkey/01/2005 influenza strain (A/tk/TK N1-PPs) plasmids, 48 h post-transfection. Negative staining of A/tk/TK N1-PPs (A) and Mock (B), and immunogold labeling of NA in A/tk/TK N1-PPs (C) and Mock (D) samples with mouse polyclonal anti-N1 A/turkey/Turkey/01/2005 serum. Arrows represent gold-labeled Ab bound to NA. Scale bar is 200 nm.