Tubulin is the major constituent of microtubules. The gamma chain is found at microtubule organizing centers (MTOC) such as the spindle poles, suggesting that it is involved in the minus-end nucleation of microtubule assembly. 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. Gamma-tubulin complex is composed of gamma-tubulin and GCP proteins. Present in discrete dots in the cytoplasm and cell cortex. Up-regulated in galls upon nematode infection. Alteration of the morphology of feeding site and failure of nematode life cycle completion. Belongs to the tubulin family.