IQGAP1 and neoplasm: For example, the interaction between GLK and TCP15 may help coordinate the expression of cell expansion genes and genes involved in the development of photosynthetic organs [55]; transgenic GLK facilitates tumor metastasis and cellular migration by leveraging the IQ motif within the scaffold protein that contains GTPase-activating protein 1 (IQGAP1) [60]; and BPG4 interacts with GLK, affecting the amount of chlorophyll and the size of the light collection complex [32].