Range: ±0.2х10^8 molecules/cell
||Fruit fly Drosophila melanogaster
||Drocco JA, Grimm O, Tank DW, Wieschaus E. Measurement and perturbation of morphogen lifetime: effects on gradient shape. Biophys J. 2011 Oct 19 101(8):1807-15. doi: 10.1016/j.bpj.2011.07.025. p.1813 left column 2nd paragraphPubMed ID22004733
||P.1813 left column 2nd paragraph: "A typical Western blot is shown in Fig. 5 a in Fig. 5 b, the quantification of five different experiments that represent a total of 400 embryos per time point is plotted. [Researchers] calibrate the blot to known quantities of green fluorescent protein to determine the absolute number of Bcd
molecules in the embryo."
||P.1813 left column 2nd paragraph: "The number of molecules continues
to increase until cycle 14, at which time point [researchers] find a total of
1.5±0.2×10^8 Bcd molecules in the embryo."