EIF4G3 (Eukaryotic Translation Initiation Factor 4 Gamma 3) is a gene that encodes a crucial component of the eIF4F complex, which participates in the initiation of protein synthesis. It plays a key role in recruiting ribosomes to mRNA, allowing for efficient translation and protein production. Proper function of EIF4G3 is essential for cell growth and differentiation, while its dysregulation may contribute to diseases such as cancer, where protein synthesis is frequently altered.