Five proteins in Drosophila (DGT2 through DGT6) have been identified that are necessary and responsible for facilitating the localization of γ-tubulin to existing MTs and are not associated with its localization at the centrosome.
Several proteins in Drosophila, designated as DGT2 through DGT6, have been found to be essential and responsible for guiding the placement of γ-tubulin onto existing microtubule filaments and are not linked to its positioning at the centrosomal region.