EIF4G3 (Eukaryotic Translation Initiation Factor 4 Gamma 3) is a gene that encodes a key component of the eIF4F complex, which plays a crucial role in initiating protein synthesis. It is essential for recruiting ribosomes to mRNA, facilitating effective translation and protein production. Proper functioning of EIF4G3 is vital for cell growth and differentiation, while its deregulation can lead to diseases such as cancer, where protein synthesis is frequently disrupted.