What Amino Acid Initiates Protein Synthesis? The Role of Methionine
                                
                                
                                •
                                
                                
                        
                                    
                                    2 min read                                
                            
                                Over 90% of eukaryotic proteins begin with the amino acid methionine, which initiates the intricate process of protein synthesis, also known as translation. This crucial step, starting with a special initiator tRNA, ensures the correct reading frame for building functional proteins and is a fundamental aspect of molecular biology.