Gamma-tubulin complex is necessary for microtubule nucleation at the microtubule organizing centers (MTOCs). Gamma-tubulin complex is essential for the control of microtubular network remodeling in the course of initiation and development of giant-feeding cells, and for the successful reproduction of nematodes (e.g. Meloidogyne spp.) in their plant hosts (By similarity). Gamma-tubulin complex is composed of gamma-tubulin and GCP proteins. Up-regulated in galls upon nematode infection. Belongs to the TUBGCP family.