1.1.9. Cad99C
The expression and function of Cad99C was previously reported
and is required for microvilli morphology and the proper secretion
of the vitelline membrane (D’Alterio et al., 2005; Schlichting et al.,
2006). Cad99C, a homolog of Protocadherin 15 and required for
microvilli morphology, is expressed in stages 4–8 in the anterior
and posterior follicle cells and in the follicle cells that migrate to
contact the oocyte at stage 9 (D’Alterio et al., 2005; Schlichting
et al., 2006) (Fig. 1I1). However, we also find that Cad99C is repressed
in the roof cells at stage 11/12 (Fig. 1I4).