Additional file 4.

1D-PAGE (12%) electrophoretic profiles of protein collected from silkworm B. mori PVFB at larval, spinning and pupal stages (C, data for Figure 1C) and Western blot of V instar 4th day PVFB tissue sample using vitellogenin antibody (D). 30 kDa protein concentration increases during uptake and storage and decreases during late pupal stages and transformation to adult. M: Molecular weight marker; V1-V6: Day 1 to day 6 of V instar larval stage; S0-S2: Day 0 to day 2 of spinning stage; P0-P6: Day 0 to day 6 of pupal stage.

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Pakkianathan et al. BMC Biochemistry 2012 13:5   doi:10.1186/1471-2091-13-5