Expression in procephalic neuroblasts stage 9-11: tritocerebrum - d2, d4, v4; deuterocerebrum - d1, d2, d4-7,v3, v6-8; protocerebrum - ad5, ad6, ad8-11, ad13, ad16-18, av1, cd2-4, cd6-8, cd10-21, cv1-4, cv6-9, pd1-14, pd17-19, pv1, pv3
See FBrf 55912.
In the 1530 enhancer trap line, Ecol\lacZreporter expression is first detected at stage 9 in a subset of midlinecells. Slightly later, expression is observed in one neuroblast in everyhemisegment. By late stage 11, expression is seen in 18 identifiedneuroblasts in every hemisegment of the CNS. Expression decreases by stage14 and is undetectable by stage 16. Expression is detected only in midlinecells, ganglion mother cells and neuroblasts and not in the neurogenicectoderm or neurons.