*). We have now included the new data in the text and in the figures (paragraph two, aforementioned subsection; [Figure 0L](#fig0){ref-type="fig"}, disc image in [Figure 0---figure supplement 0I](#fig0s0){ref-type="fig"}).  0\) A positive control should be included to validate CCP0 staining ([Figure 0---figure supplement 0H, I](#fig0s0){ref-type="fig"}).  