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Result of agarose gel electrophoresis (1%) detection of MS2 phage-like particles (MS2 PLP) in three layers removed after ultracentrifugation from the tube. 1, top layer; 2, middle layer; 3, lower layer. M, marker 2-log DNA ladder (New England Biolabs, UK), the marker values are in kb. The top layer contained the highest amount of MS2 PLP (the band on the gel around 1.5 kb).
