Meiotic exit in the unlaid Xenopus eggs. Ovulated eggs were isolated from the frog genital tract at different times (16-72 hours) after hCG administration. The percent of eggs with the white spot is shown in panel (a), H1 kinase activity in the eggs is presented in panel (b), MAPK contents and phosphorylation levels are shown in panel (c). LE in all panels refers to the eggs laid outside of frog body (laid eggs). Bars in panel (b) represent SD of three to four measurements of H1 kinase activity in the same biological material.
Iguchi et al. BMC Cell Biology 2013 14:11 doi:10.1186/1471-2121-14-11